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Car amplifier buying guide

Get the wattage and number of channels you need

When shopping for a car amplifier, there are a few basic questions that everyone has and a few use-cases that typically come up. This car amplifier buying guide will help answer those questions and get you started on the path to better car audio sound. We'll discuss: 

  • Why should I get an amplifier?
  • Adding power to a factory stereo system
  • How much power do aftermarket speakers need? 
  • How many channels should my amp have?
  • How much power do I need for a subwoofer? 

Why add an amplifier?

If you want your music to be loud, amplifiers are definitely part of the picture. But whether you run your system wide open or softly enough for conversation, a power amplifier will breathe life into your music, bringing out all of its excitement and detail. Here are a few of the main benefits of adding an amp:

  • Better sound quality — Adding an amplifier gives you a clean power source that can drive your speakers without straining. Unlike an amplifier built into an in-dash stereo, an external power amp isn't limited by the space available — it can be designed without compromises. That means your music will sound cleaner and more defined at all volume levels.
  • Power for upgraded speakers — A factory system or an in-dash receiver may not do justice to your upgraded speakers. If you're adding high-quality aftermarket speakers or component systems to your vehicle, they may require more power for peak performance than your existing in-dash receiver can provide.
  • Powering a subwoofer — Subwoofers require significantly more power than a brand-name or factory in-dash receiver can provide. A separate amp is a necessity.
Kenwood KAC-M1814

The compact Kenwood KAC-M1814 4-channel amplifier fits almost anywhere.

I want to add some oomph to a factory system

Standard factory car stereos usually have no more than about 10 watts RMS maximum output power per channel, in spite of what the car dealers advertise. That's usually not enough power to overcome road noise without sounding shrill.

A great way to upgrade your sound system without changing the factory look of your vehicle is to get a factory system upgrade. Each of these systems include an amplifier and other sound processing gear custom-designed for your specific vehicle that will vastly improve the sound and leave the interior looking stock.

A more economical way to upgrade your sound system without changing the factory stereo or speakers is to get a compact 4-channel amp to boost the power for your front and rear speakers. The Kenwood amp pictured above or the Alpine KTP-445U Power Pack are good examples of these small, 4-channel amps that are tiny enough to be installed behind many dashboards and powerful enough to dramatically increase the quality and clarity of your sound.

Look for speaker-level inputs

If you're adding the amplifier to a factory system, look for a model with "speaker-level inputs" as one of its features. These amplifiers can handle the high-level signal from the vehicle's factory speaker wiring, making it easier to install them without extra electronic components.

DIY Installation Help

Amplifiers don't come with the wiring you need to connect them to your stereo.

How much power do my aftermarket speakers need?

All aftermarket speakers, especially component sets (separate woofers and tweeters), benefit from being fed more power than what a factory or even an aftermarket stereo can put out.

Among a speaker's published specifications you will find its RMS (or "continuous") power rating, usually as a range — "5-60 watts RMS power range" for example. The higher number represents the approximate driving power at which the speaker will play at its fullest and best according to the manufacturer.

Do not exceed the RMS power ratings

  • For your speakers, use an amplifier whose top RMS output per channel is no higher than each speaker's top RMS rating.
  • For your amplifier, get speakers with top RMS ratings that are equal to or higher than each amp channel's top RMS output.
Infinity Reference 704a

The Infinity Reference 704a shows that amps can be pretty as well as powerful

So, if you already have aftermarket speakers, find out their top RMS rating. If your front and rear pairs have slightly different power ratings, it's okay — use the lower rating.

How many channels should my amp have? 

Each "channel" of an amplifier is a discrete source of power, intended to power one speaker. How many channels you need depends on your plans for your audio system now and in the future. 

I'm only powering my speakers

Many people like their music with a strong front stage and don't even use rear speakers. A 2-channel amplifier will be the practical solution when you only need to power a single pair of speakers. But if you like rear-fill sound in your car and want to retain front-to-rear fade control, get a 4-channel amp — one channel for each speaker.

I want to power speakers and a subwoofer

There are some other amp configurations to consider when you want to include a subwoofer in your system. A 3-channel amp can take care of a single pair of speakers plus a sub quite effectively.

A 4-channel amp can also be employed to run a pair of speakers and a sub — two channels bridged together to run the sub and the other two to drive the speakers. This gives you the option for future expansion of your system, allowing you to later change the amp over to run four speakers and add a separate amp for the sub.

JL Audio HD900/5

JL Audio's HD900/5 five-channel amp can power your front and rear speakers along with a sub.

You may want to consider a 5-channel amplifier that can power your entire system from one convenient and compact package. It's four channels for your speakers, plus a fifth, higher-powered channel for your subwoofer. 6- and 8-channel amps take that all-in-one design and add even more system-building flexibility. 

I plan to get new speakers along with my new amp

When building a system from scratch, one of the first questions you should ask yourself is, "How loud do I want this to be?" Car audio systems don't necessarily need massive amounts of amp wattage to sound loud, but having a lot of power available is good for the "headroom" of a system — the ability to deliver an emotionally impactful burst when the music asks for one. There's also the interior size of your vehicle to consider.

Sound Ordnance M75-4

A Sound Ordnance M75-4 four-channel amp is an economical way to amplify your system.

How much power does my system need?

If you drive a compact coupe or hatchback, a sports car, or a small-cab pickup, for instance, an amp that's 50-watts RMS per channel, or smaller will probably do fine, overcoming road noises and adding clarity to your music. Look for speakers with a top RMS rating of at least 50 watts RMS to go along with the amp.

For larger vehicles and for those who just want more volume, you should step up to at least a 75 watts RMS per channel setup. A difference of 5 or 10 watts either way won't make any difference and probably can't even be heard. Matching speakers will need to each have a top RMS rating of 75 watts RMS or more.

Those of you who want even greater impact and eye-popping volume out of your system will want to go for an amp with 100 watts RMS or more per channel. Get speakers or component sets that are each rated for at least the top RMS output power of each channel.

I only need an amp for a subwoofer

Bass is much harder to amplify than the rest of the spectrum of sound — that's why there are so many large and beefy subwoofer amplifiers out there dedicated solely to reproducing bass.

"Mono," or single-channel, amps are designed for subwoofers. They'll work with a wide range of impedances, and have tone controls and filters specifically made to help reproduce bass. Although many 2- and 4-channel amps can be bridged to increase their power enough to run a sub, they often then can't handle the sub's low impedance, and overheat or go into protect mode.

Alpine S-A60M

Alpine's S-A60M subwoofer amp puts out up to 600 watts RMS for bass.

How much power do I need for a subwoofer?

You want the bass to musically blend and be well-balanced with the rest of your system, so, here's a good rule-of-thumb guide to subwoofer power:

  • If you're using your car's factory stereo — 50 to 200 watts RMS of power for the bass will do nicely.
  • An aftermarket receiver — you might want 200 to 300 watts RMS of power for your sub.
  • Amplified speakers with around 50 watts RMS per channel — plan on 250 to 500 watts RMS for bass
  • A 100 watts RMS or higher per channel system — you'll want at least 1,000 watts RMS for your sub.

As with speakers, you'll need to make sure your subwoofer's top RMS rating is equal to or greater than the amp's top RMS output.

You'll also need to impedance match your sub amp and sub. It would be a shame and a waste of money to buy a couple of subwoofers and an amplifier, for instance, only to find out that the amp can't run the subs because wired together, their impedance would be too low for the amp to run without overheating. Remember, if you're adding a sub to a factory system, get a subwoofer amp with speaker-level inputs, so it can get its signal from the factory speaker wires.

Need more help?

Browse our entire selection of car amplifiers. If you need more help, give our Advisors a call at 1-888-955-6000. They have the knowledge and experience to help you find an amp that will meet your needs.

Please share your thoughts below.

  • Chad gossett from BELTON

    Posted on 9/13/2020

    I have 2 punch p3 9on a punch 750and its.not enough

    Buck Pomerantz from Crutchfield

    on 9/14/2020

    Chad, Give us a call and an Advisor will help you get the sound you want.
  • Nate from Jacksonville

    Posted on 9/5/2020

    I have a 2020 Mustang with the 9 speaker option. Do I need a multiple amps to power them?! Would the car have enough power for them?

    Buck Pomerantz from Crutchfield

    on 9/9/2020

    Nate, With such a complex system like yours, it's best to give us a call, so an Advisor can look up your vehicle in our database and tell you what will work, and help you get the best-sounding system available.
  • Mtx Bass Package from New york

    Posted on 8/30/2020

    What a great article to share. A great contribution especially for someone looking forward to buying a car subwoofer, amplifier and enclosure. If anybody wants to install a new one, this is the most effective share, that will be very helpful for the best choice. Thanks a lot for the post. [Link removed]

  • Andrew

    Posted on 8/14/2020

    I am looking to purchase a 5-channel amplifier for my 2010 Honda Accord. I recently installed Morel Maximo Ultra 602 coax and components. I am also looking to install a component sub-woofer that matches the output of the amplifier I chose to purchase. Can you please give me some recommendations for an amplifier. Thanks.

  • Charles E Garrison from Marana

    Posted on 7/31/2020

    have a 16 tundra with JBL system. Thinking of upgrading everything. I like the focal PS165V1 speakers but you say they dont fit but other online places say they do...but my question is everything im reading says my amp should be one with dsp like the JL VX700/5I but its expensive and im wondering if i need one with dsp or will something else you have and could recommend along with focal speakers or JL for my upgrade. have no idea ....

  • Michael Chase from Trinidad

    Posted on 7/25/2020

    Morning.... I have a 10" pioneer championship series sub woofer 350 watts min 1200 watts max.. can u recommend an amp to run this speaker... Bear in mind the same amp will be used to run a pair of 8" speakers as well....

    Buck Pomerantz from Crutchfield

    on 8/3/2020

    Michael, Pioneer makes two versions of that sub, DVC 4-ohm and DVC 2-ohm. Not knowing which you have, nor what speakers you have make it impossible to recommend an amp. Besides, I don't k ow what's available in your country.
  • Nav from Mumbai

    Posted on 7/25/2020

    Hii.. You prefer that rms of speakers must be higher than rms of amp. So that no stress/harm is done to speakers. But what about vice-versa.. Doesnt speakers which require high power rms will give stress to low rms amp? Does it causes Harm to amp? Plz reply.. Whats a safe +- range for both.?

    Buck Pomerantz from Crutchfield

    on 7/29/2020

    Nav, There is nothing wrong or stressful about using an amplifier with a lower RMS rating than a speaker. After all, turning down the volume does that harmlessly.
  • Jess from Lexington

    Posted on 7/24/2020

    Good Afternoon Buck, i have a 2008 Ford F-150. And, wanting to upgrade my factory stereo. I purchased a Kenwood Dual Din Sized CD Receiver (DPX504BT) along with 2 pairs of 6×8in Kenwood Concert Series (KFC-C681) Peak Power 360w. And, 2 pairs of 500w tweeters. Could i hook up a 600w amp to them w/o a subwoofer, along with the tweeters? If so, is 600w amp to much Power for the 6×8? Or could you suggest anything to help me out with what i already have, or exchange anything for something? Thanks

    Buck Pomerantz from Crutchfield

    on 7/29/2020

    Jess, Without knowing precisely what amp you're referring to, we can't help you with advice. If you want a question answered about a system, you must identify the gear by brand names and model numbers so we can get the right information to you.
  • Anthony M from Las Vegas

    Posted on 7/20/2020

    Hey Buck, I've got a good one for you, I have a 2003 Honda Element Ex 7 speaker system. So far we have changed the factory headunit to Kenwood's Dmx7705s the subwoofer to kickers 43CWRT672 150W -300, FRONT DOOR To KENWOOD'S Kcfp7100ps component speakers 80watts 280 WATTS PEAK and the rears to kickers 43CSC54 'S 75WATTS RMS 225 PEAK. I have a factory amp supplying 270 watts of power which sounds pretty decent with this system, however I have another kicker sub 43cwrt672 that I'd like to install. So I have build an enclosed can for it, it seems no one makes a 6.75 sub enclosure. My question is , is it possible to pull the subs off my factory amp and let that amp run my speakers and then just install sub amp to power both subs @2 ohms? Or do I have to bypass the factory amp altogether in which case I'd need at least a 5 channel amp. I've been looking for the answer to this puzzle for quite a while. It's very hard to find the true specs to my factory amp. Any thoughts?

    Buck Pomerantz from Crutchfield

    on 7/28/2020

    Anthony, Call us so an Advisor can help you find out what's possible in your vehicle and get the best possible gear.
  • Andy Chung from Hong Kong

    Posted on 7/19/2020

    I just bought a Focal PS 165F3E, the speaker is 80w RMS, what would be the best amp to buy to use with it? Thanks

    Buck Pomerantz from Crutchfield

    on 7/20/2020

    Andy, If you talking two-channel stereo, JL Audio's XD200/2v2 is a great amp, but I don't know if it's available in your country.
  • Oliver xavier from Georgetown

    Posted on 7/18/2020

    Wow this was an eye opener. I'm new to this and looking upgrading the stock speakers in my 2006 Toyota rush with 4 hertz k165 component speakers (70 rms 4 ohms) that I will purchase soon. I currently have a boss bv9358 after market head unit installed. I also have a JL 10w7 subwoofer (750 and 3 ohms) that I intend to include in the set up. My question is what would be the best 4 channel with 2 output to power the 4 hertz and what would be the best mono to power the sub. I don't intend to have the sub on all the time so ill include a switch to power on the mono when I need more boom. Also would I need any additionally accessories like cross overs or equalizer? Thank you and looking forward to you guidance.

  • Anvar from Dubai

    Posted on 7/16/2020

    Well explained, detailed ... good Thanks

  • Abigail Brown from Upper Marlboro

    Posted on 7/13/2020

    "For your speakers, use an amplifier whose top RMS output per channel is no higher than each speaker's top RMS rating. For your amplifier, get speakers with top RMS ratings that are equal to or higher than each amp channel's top RMS output." I thought the amp's RMS should be higher than the speakers'? More powerful speakers strain the amp/less powerful amp would strain the speakers, no? Are there two schools of thought on this?

    Buck Pomerantz from Crutchfield

    on 7/13/2020

    Abigail, A manufacturer's RMS power rating for a subwoofer or a speaker tells you the top amount of power that can safely be applied without damage. Exceeding that rating will endanger the speaker or sub, and it won't be covered under warranty because of abuse.
  • Alexander Affleck from Logan

    Posted on 7/9/2020

    very well written! Having said that I feel silly needing to ask but I'm still unsure of some things. I'm looking to buy a used car and upgrade the audio system. New head unit, speakers, and adding a sub. I've done simple upgrades in the past but never as far as adding an amp. So if I am looking to add 4 aftermarket speakers and a subwoofer, how many channels does my amplifier need to be? Also, the speakers I'm looking at getting(Hertz Uno X 690) say they handle up to 85 RMS with a peak of 340. What should the amp I buy be rated at?

    Buck Pomerantz from Crutchfield

    on 7/10/2020

    Alexander, A great way to power four speakers and a sub is with a 5-channel amplifier. That 85 watts RMS rating means the speaker can take a lot of power, but don't power it with more than 85 watts RMS or it could get damaged.
  • Peter Anglin from Carrollton

    Posted on 7/5/2020

    Wow !! Very professional, & Very well explained!! (Simple& Easy to UNDERSTAND !!!) Thanks Crutchfield now y'all have a job to do!! -- PUT TOGETHER (ALL THE BEST HIGH POWERED COMPONENTS) FOR MY AWESOME SOUNDING SYSTEM !! Get to work cause I want to get my system from CRUTCHFIELD !! LET Me know what we're looking at

    Buck Pomerantz from Crutchfield

    on 7/6/2020

    Peter, Give us a call, so an Advisor can help you figure out what you want and get the perfect system.
  • Randy from Los Angeles

    Posted on 7/1/2020

    Hi Buck -- Am in need of some help! I'm attempting to get some more oomph out of the stock 6 speaker setup (NOT Bose) I have in my Nissan Rogue Sport 2017 (no separate amp). Two tweeters in the dash, and what I believe are 2 Front and 2 Rear 2-ways in the door panels. I think the tweeters are 4 ohms and the speakers in the doors are 2 ohms, so am guessing wouldn't benefit from after-market speakers installed without the amp (and it doesn't look like the one 2ohms after-market speaker option are 2-ways anyways so am guessing I would need to add an amp? With the amp, most are 4 channel and the 6 channel ones seem to be a crazy price range so what is my best option if I have 6 speakers in the car? 4 Channel bridge? Would I get enough of a lift to brighten the sound if I added an amp without swapping out the stock speakers or should I replace both? If both, any ideas for speakers that would pair nicely with an amp that's not terribly expensive? Trying to keep the stock head-unit if I can as it's linked with virtually all the settings in the car. Front Door: Size: 6.5 or 6 3/4 Depth: Over 4.5" Mounting Height 0.44 Cut-Out Diameter: 5.075   [Item numbers and links removed]

    Buck Pomerantz from Crutchfield

    on 7/2/2020

    Randy, Give us a call so an Advisor can answer all your questions and help you get the perfect gear for you and your vehicle.
  • Jeff Campbell from Merritt Island

    Posted on 6/25/2020

    Hi Buck, Great article, albeit still a bit confusing for the novice here! HaHa! I've been working on a system for my 2006 Mini Cooper S... Kenwood KMM-X503 Excelon head unit Kenwood KFC-P710PS Component (80 rms) up front Kenwood KFC-1696PS Rear panels (100 rms) It's my understanding that I can run all of this with a 4 channel amp, but I'm confused about about the amps RMS numbers; (example, 50x4 4ohms) I don't get any of that information. I just want to hook it up and go! LOL Can you recommend a good amp for my setup, preferably in the Kenwood family, so I can avoid all the research? You guys are the specialists! I'll take the recommendation and run with it! I can do the install as I'm not afraid of getting my hands dirty! Appreciate your time!

    Buck Pomerantz from Crutchfield

    on 6/26/2020

    Jeff, A speaker's RMS power rating is there to tell you what not to exceed - don't send 100 watts RMS to a speaker only rated for 50 watts RMS, for example. You choose your amplifier's power according to how you listen to music. Want to hear your music clearly and full over the sound of wind and road? Try a Kenwood ExcelonX302-4 50 watts per channel amp. Like it loud? Check out Kenwood's Excelon XR401-4 at 75 watts per channel.
  • Ty smith from Philadelphia

    Posted on 6/25/2020

    Buck I am new to the game and I understand absolutely none of this I am thinking about running 2 Rockford Fosgate p3d4-12 punch p3 dvc 4-ohm 600 rms and I want to run them off of a 2 channel amp can you point me towards what would be the best if I wanted to use that amp as a dedicated sub amp

    Buck Pomerantz from Crutchfield

    on 6/26/2020

    Ty, I know of no 2-channel amp appropriate for those subs. Two DVC 4-ohm subs rated for 600 watts RMS each will work well with a mono 1-channel subwoofer amplifier that can put out up to 1200 watts RMS at 1 ohm or 4 ohms, like a Pioneer GM-DX971.
  • Colin Kuria Macharia from Nairobi

    Posted on 6/21/2020

    Great advice!! Thanks for taking the time to guide

  • justin from Elk Mound

    Posted on 6/19/2020

    I have 4 8 ohm mid-range speakers rated 200 rms/ea. I need an amplifier that will maximize the sound these things can produce but I havent had good luck so far. What kind of numbers should I consider for a decent amp?

    Buck Pomerantz from Crutchfield

    on 6/19/2020

    Justin, The largest 4-channel amplifier Crutchfield offers, Rockford Fosgate's Power T1000-4AD, will work for you. Each speaker would be able to receive about 125 watts RMS each.
  • Paul Z. Manaog from Quezon City

    Posted on 6/19/2020

    Thanks, Buck. A very helpful article. As a starter, I recently changed the front speakers on my 2015 Mazda CX-5 with Hertz Dieci 165.3 but got disappointed that it didn't improve the sound to my expectations. Will driving them with an amplifier make a difference? I have no plans of upgrading the headunit. My next plan was the Kenwood ksc-sw11 compact powered sub but that may change if I am going to install an amplifier. Thanks again, and more power. Paul

    Buck Pomerantz from Crutchfield

    on 6/19/2020

    Paul, An amplifier will definitely improve the sound of your aftermarket speakers. I can't give you a specific recommendation, though, because I don't know what's available in your country.
  • Jay from Portland

    Posted on 6/16/2020

    Hello, I have a 2007 Toyota Sequoia with the JBL system. I just made the bad decision (?) to change out the JBL component speakers, front and rear with Infinity Kappa 60CSX's in front and Kappa 62IX's in rear. I believe the voice coil was failing on the front speaker . My head unit is a Pioneer touch screen GPS unit (maybe from 2011) that was inputting the factory JBL amp that is located under the center console. After having the speaker installation completed by a local car stereo shop, the results are less than satisfactory. Old speakers sounded quite a bit better, more bass, louder. To be fair, I was starting to get volume fluctuation and channel bleed before new speakers. I suspect the amp or the head unit could be the culprit? Also, perhaps the more power-hungry Infinity's are finally putting the stock JBL amp to rest? What could be a high quality replacement amp for this situation? Would I be well off to also purchase the Kappa 2" midrange kit to make up for the 3 way front speakers I just did away with? It seems to be difficult to find much info on what people have done to improve their Sequoia factory systems. My understanding (by now after much research), is that monkeying with the JBL stock system is a real quagmire, you have to basically change everything. Well, I guess I'm in it for the speakers and head unit already. Thanks ahead of time!

    Buck Pomerantz from Crutchfield

    on 6/16/2020

    Jay, Often, when you replace flimsy, 2-ohm factory speakers with robust, 4-ohm aftermarket speakers, the system plays softer, revealing the need for a stronger amp. Why don't you give us a call, so an Advisor can help you get what you need in order to get great sound.
  • Mike Rydberg from Virginia Beach

    Posted on 6/12/2020

    Buck, I have a 2018 Colorado with a Bose factory system. I purchased 2 Rockford Fosgate R2 Ultra Shallow Slim 10" 4 Ohm DVC subs. I also purchased an Alpine S-A60M (600 watts RMS x1 at 2 Ohms) amplifer. It was installed and it makes sound however, the installer said I should really have an amp that "powers 400RMS at 1 Ohm stable". Did I screw up and if so, what amp is best to replace it with. Thanks!!

    Buck Pomerantz from Crutchfield

    on 6/12/2020

    Mike, Two DVC 4-ohm subs can only get wired together to form a one-ohm load, a 4-ohm load, or a 16-ohm load - so your installer had to wire your subs up as a 4-ohm load so the amp could handle it. He's knit-picking, though, when he points out that your amp is only putting out 330 watts RMS to the 400 watts rated subs and he thinks you can do better. Even if you found such an amp, I doubt you'll hear any volume difference.
  • Eddie Hooper from Opelousas

    Posted on 6/11/2020

    4 kenwood excelon KFC-x694 needs what size amp to get the best results?

    Buck Pomerantz from Crutchfield

    on 6/12/2020

    Eddie, Those speakers will sound great with almost any amp - they're rated for up to 130 watts RMS. How loud do you want it? Ear-blasting: try a 4-channel 100 watts RMS per channel amp. Just loud: 75 watts RMS per channel. Clearly hear your music over road noise: 50 watts per channel. Give us a call and an Advisor can help you pick out the best amp for you and your speakers.
  • Jason Boyko from Elkhart

    Posted on 6/5/2020

    Hi, I just installed a pair of 6.5" front speakers, 200W RMS/400W peak (model# P654C), and a pair of rear 6x9 speakers, 400W RMS/800W peak (model# P694C). The RMS seems high, but that's the info I could find. Would I need to get close to 200W per channel for them to sound right? What do you recommend? Thank you.

    Buck Pomerantz from Crutchfield

    on 6/8/2020

    Jason, Your speakers' high power ratings means that they can get played very loudly, but they don't need exactly 200 watts RMS to sound good. In fact, most people would be satisfied with a 75 watts RMS per channel amp, like an MTX THUNDER75.4, powering their system.
  • Cj from Waipahu

    Posted on 6/3/2020

    Sorry I wasn't so clear in my previous comment. So say I have (4) 6.5" mid range speakers rated 110watt rms @ 4ohm. I also have (2) 3.3"super tweeters rated 100watt rms @ 4ohm. And also have (2) 4" super tweeters rated at 200watt rms @ 4ohm. Do I need a 6 channel? Or would I be okay with a 4 channel? This is going into a 1978 Toyota pickup with an aftermarket Headunit which I haven't decided on yet. Could you recommend me an amp or 2 to power all those speakers? Thank you!

    Buck Pomerantz from Crutchfield

    on 6/4/2020

    CJ, It really sounds like you will benefit greatly by calling Crutchfield so an Advisor can help you pick out the gear that'll work perfectly for you in your vehicle.
  • CJ from Waipahu

    Posted on 6/1/2020

    So say I have (4) 6.5" mid range speakers rated 110watt rms @ 4ohm. I also have (2) 3.3"super tweeters rated 100watt rms @ 4ohm. And also have (2) 4" super tweeters rated at 200watt rms @ 4ohm. Does that mean I need a 6 channel amp that has at most 100watts per channel? What should I look for?

    Buck Pomerantz from Crutchfield

    on 6/3/2020

    CJ, You didn't say what kind of vehicle you have, but a Kenwood Excelon P-XR600-6DSP will probably work fantastically for you.
  • Kasey-Joe

    Posted on 5/31/2020

    I have a Fusion EN-AW1121 12" Active Wedge Subwoofer (1000W) Enclosure with an inbuilt amp that has a Rated Amplifier Power of 150W . I want to know if I can run 4 x Pioneer TS-D65F 270W 6.5" 2-Way Coaxial Speaker System with this amplifier. Is this possible? Or will I need a bigger Amp? Thanks!

    Buck Pomerantz from Crutchfield

    on 6/1/2020

    Kasey, If you want to power four speakers you'll need to get a separate 4-channel amplifier.
  • Andell from Bvi

    Posted on 5/29/2020

    I have two subwoofer att 300 Watts what amplifier do I need for them

    Buck Pomerantz from Crutchfield

    on 5/29/2020

    Andell, If you want a question answered about a system, you must identify the gear by brand names and model numbers so we can get the right information to you.
  • Walter from Lancaster

    Posted on 5/26/2020

    I have a Rockford fosgate sub P3D4-12 With rms 600 maximum 1200. I'm planning on wiring it at 4 ohms but I'm not sure what amp I need. I'm also planning on getting another exact sub so what amp would I need to power both subs when I get both subs, and would the amp still work with just the one sub I currently have or would I need to get 1 amp that powers just 1 sub, and then get another amp that powers both subs? And would I need to upgrade my battery/alternator? I have a 2016 Hyundai Elantra SE with aftermarket radio kenwood dmx7706s.

    Buck Pomerantz from Crutchfield

    on 5/27/2020

    Walter, First of all, that DVC 4-ohm sub can only get wired as a 2 ohm or an 8-ohm load, meaning that the best amplifier for it will put out up to 600 watts RMS at 2 ohms. Two DVC 4-ohm subs can only get wired together to form a one-ohm load, a 4-ohm load, or a 16-ohm load. A good amp for them will put out up to 1200 watts RMS at 1 or 4 ohms.
  • jsm00th23 from LA

    Posted on 5/23/2020

    I got a pair of 10in speakers and I'm trying to figure out which amp I can match them with.. I do have a Mono Block Class D 3200 Watts (Peak Power) Amplifier - RMS Power Handling @ 1 Ohm: 750 Watts x 1/ RMS Power Handling @ 2 Ohms: 530 Watts x 1/ RMS Power Handling @ 4 Ohms: 300 Watts x 1 How would that stack up with my speaker if Each speaker I have is rated @ 2ohm 800 watt (500RMS)

    Buck Pomerantz from Crutchfield

    on 5/25/2020

    J, You've given a lot of specs but the identity of your gear remains unclear. If you want a question answered about a system, you must identify the gear by brand names and model numbers so we can get the right information to you.
  • Jaime Montoya from Imperial Beach

    Posted on 5/22/2020

    Im sorry Buck i called you Bob was not wearing my glasses.

  • Jaime Montoya from Imperial Beach

    Posted on 5/22/2020

    Hey Bob if i just want to install a car stereo with 45 watts per channel x 4 whithout an amp what wattage car speakers do i nstall to get the best outcome out of them .

    Buck Pomerantz from Crutchfield

    on 5/22/2020

    Jaime, A speaker's RMS power rating is a guide on what not to do. In your case, you do not want speakers that are rated under 45 watts RMS.
  • bob from lebanon

    Posted on 5/20/2020

    hello . I have an amplifier (crown 998 1600watt) is that good to two pioneer subwoofers 12" (1400 watt) each one

    Buck Pomerantz from Crutchfield

    on 5/22/2020

    Bob, Without knowing precisely what subs you're referring to, we can't help you with advice. If you want a question answered about a system, you must identify all the gear by brand names and model numbers so we can get the right information to you.
  • Michael Jacobs from Blackstone

    Posted on 5/18/2020

    Hi I have a 2012 Kia optima ex no infinity system I just upgraded to a aftermarket head unit atota a6 deck , I then replaced the door speakers with Rockford fosgate prime 6.75 in all 4 doors and also put in 3.5 in Rockford fosgate punches in the front dash where stock tweeters were. I was not getting enough power so I purchased a used Rockford fosgate 2 channel p2002 amplifier . My first question is when wireing the front speaker to the amp can I use the front dash speaker wire and will that power both front door and dash speaker I think they are both on the same wire that goes to the head unit I only ask because I cannot get the clip removed where the wire run threw the front door . Secound question is since this is a two channel amplifier I am confused on the RCA outputs my head unit has like 8 different options to out them in and so far I have my rear speakers wired to the amp and sometimes it puts way to much power to the speakers and sounds cracked and awful and if I switch the Rcas around it sounds better for awhile then acts up again . I guess I am confused on how to wire the speakers and Rcas correctly on a 2 channel amplifier and cannot find any videos online that are for 2 channel amp with no subwoofer powering just aftermarket door speakers and tweeters . Thanks a lot !

    Buck Pomerantz from Crutchfield

    on 5/19/2020

    Michael, The factory door speaker and dash tweeter were wired together with a small capacitor on the tweeter acting as a crossover, so you can use a 2-channel amp to power all the front speakers. The receiver's RCA outputs should be clearly marked. Use "Front" if you want to amplify your front speakers. Use "Rear" for rear power.
  • Braeden Davis from Yucaipa

    Posted on 5/1/2020

    when calculating an rms rating for a component set of 2 6x9s and 2 tweaters with crossovers, does the rms include all 4 speakers or just the woofer and tweeter in pairs. for example in a component set with an rms rating of 125 at a 2 ohm load does that mean about 60 watts for each side equaling 120 watts total or 125 for both sides equaling out to 250 watts in total? and does the 2 ohm load need to be 2 ohms on the amp? i have a 4 channel amp that can do 125 at 4 ohms bridged giving me 2 channels at 125 and it can do 60x4 at 2 ohms what would be the better option?

    Buck Pomerantz from Crutchfield

    on 5/4/2020

    Braeden, The power rating of a component set is not calculated, it is stated by the manufacturer as the nominal power rating of the crossover's input. The crossover divides the power between the woofer and tweeter depending on what is being played - for high notes, all the power goes to the tweeter; for low notes, the woofer gets it.
  • Stefan from Luton

    Posted on 4/30/2020

    Hi Crusfield..Can anyone help and offer me the right sub for my car PLEASE!..Im living in UK so i can call to the USA...Im really sorry..So i would be gratefull for some good offer PLEASE...In the moment my car is ALFA ROMEO MITO hatchback(Just for orientation its not big CAR)...In my car i have Aftermarket Stereo - DMX7017DABS Allpine tweeters 4x 150W RMS 4ohm Bassface SPL6M.2 6.5" 16.5cm 4Ohm Midbass Driver Car Door 4x150W RMS AMP Allpine PDX F6 4channel amp Alpine SWE-815 8" Car subwoofer with built in Alpine amplifier powered enclosure I wanna ask if you can offer me some the right subwofer as the subwofer what i have as i dont have that great sound and seems to me its not inaf poweerfull...Im really not expert so if you can help that would be great..Thank you.

    Buck Pomerantz from Crutchfield

    on 5/4/2020

    Stefan, I don't know what's available in the UK. I'm sure an online search for car audio will bring up some shops near you that can help you pick out the right subwoofer.
  • Kaimi N. from Honolulu

    Posted on 4/30/2020

    I am thinking of getting a set of speakers and tweeters. The speakers are rated at top rms of 150 each(300w rms a pair) and tweeters that are rated at 80rms each(160w rms a pair) both the speakers and tweeters are 4 ohms does this mean I need an amplifier that can supply around 230rms at 2 channels in order to supply the speakers with enough power to play at their best? And how do I tune the crossovers on the amp and in the speaker set in order to ensure my speakers are getting 150w rms each and my tweeters are getting 80w rms each?

    Buck Pomerantz from Crutchfield

    on 4/30/2020

    Kaimi, The power ratings of speakers and tweeters define the upper limits of what the device can take without breaking. They are not recommendations for power applications. You tune crossovers, volume levels, and balance to sound good, not to hit rating numbers.
  • Miguel from Long Pond, PA

    Posted on 4/23/2020

    HI Crushfield, I have a 2016 Chevy Cruze Premier without the rear deck speakers, I'm looking to add rear deck speakers but no wires for rear deck speakers, what should I do? (beginner at this) and also maybe using same front and rear speaker (future rear deck speaker) for a power amp. Hope I worded right Thank you

    Buck Pomerantz from Crutchfield

    on 4/24/2020

    Miguel, Give us a call and an Advisor will help you get everything you need. We even have Spanish-speaking Advisors, which might make you more comfortable.
  • xavier from Zurich

    Posted on 4/23/2020

    A lot of useful information Buck,I know now what i need to buy. I thank you very much.

  • Chuy from Corona

    Posted on 4/20/2020

    Buck I have a 13.5 ja audio sub wich amp would you recommend

    Buck Pomerantz from Crutchfield

    on 4/20/2020

    Chuy, JL Audio makes a few different model 13.5" subwoofers. Without knowing precisely which one you have, it's impossible to give an amp recommendation.
  • Scott A Reday from Morrisville

    Posted on 4/12/2020

    When I do RF refinements, Toshibas are usually the transistor to use. What about audio? How are there transistors? I know they also have inline pin components. What would you suggest? If you could help? Thank you.

    Buck Pomerantz from Crutchfield

    on 4/13/2020

    Scott, As an electronic technician you know that opening an amplifier voids its manufacturer's warranty. That's why we don't open up the amps we offer to see what brand transistors, usually MOSFETs, were used.
  • Scott from Yardley Pa.

    Posted on 4/12/2020

    Thanks for the input on the output hahaha could I am in electronics technician. RF basically. I would also add to your information, which is very good, that people should not mistake the package consumption for output. A lot of people will say to me, "on the back of my stereo, it says 500 watts." Wrong! That's what it consumes. And that's ac value. The mainstream consumer has no idea what RMS is. Thanks for putting that to light for many folks.

  • Edgar from Arcadia

    Posted on 4/11/2020

    Hello Buck, I have a couple of brand new (old stock) US Acoustics usx-4085 & 2150 i bought there many years ago. I want to use the 4085 (4ch amp) to run my old school Boston Acoustics RC620 Components w/ Imaging tweeters. Amp is underrated at 85w per channel and Boston Components I believe 80-85watts and My Alpine S-S69's are 85watts. Sounds like a perfect match all together. I need a little advice in turning/setting up this amp to maximize high fidelity sound and smooth clarity. I also have a really nice CDT Audio Components 6.5" i used in my previous car as a back up in cases the Boston are too big to fit but with a little modification and spacer they should fit fine. I really want rock those Bostons and want to ensure i get that classic Boston Acoustics sound quality.

    Buck Pomerantz from Crutchfield

    on 4/13/2020

    Edgar, Check out this article for tuning advice.
  • K Hill from Carrollton, TX

    Posted on 3/24/2020

    Could you cover what the amplifier classes mean and their differences?

    Buck Pomerantz from Crutchfield

    on 3/24/2020

    K, Check out this article for info on that.
  • Ken Savage from Pueblo West

    Posted on 3/23/2020

    I'm looking for an amp to power the Polk audio db6501 6.5 component front speakers and 2 - 10inch infinity reference shallow subs in sealed boxes, Alpine head unit. Please help

  • John Winter from Rochester

    Posted on 3/11/2020

    I have a Cadillac with factory Bose amplifier and speakers. With my newly installed Pioneer AVIC 8500 NEX I wonder if the Bose amplifier is the best, or if I should upgrade it, and possibly the speakers, as well. the Pioneer and the Bose sound just great, by the way.

    Buck Pomerantz from Crutchfield

    on 3/16/2020

    John, It's only when you don't like the sound that you install upgrades.
  • CD from Gloucester

    Posted on 3/11/2020

    Hi , Can you recommend some amps that would be good options for powering my sub-woofer box please? The more recommendations you can provide would be greatly appreciated. Subwoofers are x2 12" DVC Kickers (Model #43DCWR122) It wouldn't hurt to look a couple recommendations for a possible 5 channel to power my door speakers (6x9's GTO938 and 6.5" DSC65) in addition to the subs but more interested in a Mono for subs. Thanks,

  • Wes from Georgia

    Posted on 2/16/2020

    Hey buck I have a audiobahn aw1251x rated at 400 rms sub and newly installed Rockford fosgate r1525 rear speakers. I have a boss pv3700 5 channel amplifier that I'm hoping to use. Would it be ok to use this amp to drive these speakers and sub?

  • Matthew Gouttiere from Hewitt

    Posted on 2/10/2020

    Yes Buck I don't really know anything about any of this at all so I may not be explaining thing's correctly. I'm pretty sure the tweeter's came with crossovers I assume to go with two of the 6.5" to make them component speaker's. But other then that I'm just going off of what the guy at the shop that I was going to have install everything at. And I do think I heard him say something about crossovers which he said we would discuss at look at my options when I actually go there to have it installed. And he is an authorized and licensed dealer and installer for the products that I have and is the one that said the Pdx-v9 is enough to push everything. I just wanted a second and very reliable and reputable man's opinion to make sure everything is done correctly since I have absolutely zero knowledge in this field as I made obvious when I asked about the power source upgrade. I'm sorry for wasting you're time on such miniscule questions but could you by chance tell me what I need to make it work with those speaker's and thePdx -v9 amp. that you were mentioning. I appoligize for my ignorance and thank you for your knowledge and most of all your time.

    Buck Pomerantz from Crutchfield

    on 2/11/2020

    Matthew, You'd be better off asking the installer your questions.
  • Matthew Gouttiere from Hewitt

    Posted on 2/9/2020

    Yes sir I'm installing four 6.5" Cerwin Vega Stroker pro series 100 watts rms each with two Cerwin Vega Stroker pro series 1" tweeter's 50 watts rms each along with two 8" Cerwin Vega Stroker pro series at 200 watts rms each and one 12" Cerwin Vega Stroker pro series at 1000 watts rms. Is my one Alpine Pdx-v9 5 channel monoblock amp. 900 watts rms enough to push everything and do I need to beef up my power supply via battery or alt.?

    Buck Pomerantz from Crutchfield

    on 2/10/2020

    Matthew, It seems to me that nine drivers would need more than five channels of power to work - but maybe I'm not understanding your crossover configuration. If there're 3-way crossovers in the system, then the 5-channel amp will work just fine. Amps of this size, 900 total watts RMS, rarely require electrical system upgrades.
  • Josh from Seminole

    Posted on 1/23/2020

    I'm am currently adding per door, 3 6" PRV 6mr500 nyd-4 and per door, 3 tw700 Ti... so 6 speakers total per door. Can't figure how many amps to use, 2 separate per speaker size or 2 per door( 1 for mids and 1 for tweets per door) also need to know what amp size to use after making the choice of wiring for amps

    Buck Pomerantz from Crutchfield

    on 1/24/2020

    Josh, You can wire the three 8-ohm tweeters together in parallel (positive to positive and negative to negative) for a 2.7-ohm load which one amp channel can handle. Three 4-ohm mids wired together in parallel make a 1.3-ohm load which some amps can handle. So, a 4-channel amplifier, able to drive a 1-ohm load, can power six speakers. As for how much power, I wouldn't send more than 100 watts RMS to any of those drivers, so: 4-channel amp, capable of powering a 1-ohm load, no more than 300 watts RMS per channel. Don't forget the crossovers. That tweeter wants to be crossed-over at 5000 Hz.
  • Avas YC from California

    Posted on 1/7/2020

    Hi, i'm currently having a pair of Morel Hybrid 602 (140RMS) paired with a Steg K401 (80RMS per channel). I feel the woofer not resposive enough and intend to upgrade to Mosconi AS200.4 (200RMS). Appreciate your advise. Thanks Buck.

  • Chelsea from Los Angeles

    Posted on 12/19/2019

    I'm in the process of installing Focal ISS 165 component speakers in the front factory locations of my 2012 Hyundai Elantra. The tweeters and woofers are essentially treated as separate speakers with in-line crossovers... what is the best way to amp these? Would running them in parallel be safe (my amp is stable down to 2 ohm, so my worry is over the speakers themselves)? Or should I run the woofers off two channels of my four channel amp (rear channels are currently bridged to power a 10" sub) and the tweeters off my headunit (Pioneer AVH-4000nex)? The third option is giving the woofers and tweeters their own channel. How much power would you supply to these tweeters (relative to the woofers)? My amp is old and I plan on replacing it (Sony XM-ZR604)...So what type of amp(s) should I purchase? An amp with more channels so each speaker (sub included) has its own channel (5,6, or 8 channel amp-flexibility to add rear door speakers later)? Or should I purchase a 4-6 channel amp for the door speakers and a separate mono amp? Thanks in advance for your advice!

    Buck Pomerantz from Crutchfield

    on 12/20/2019

    Chelsea, Each tweeter-woofer set can get driven by one or two channels of amplification. All the elements are rated for 70 watts RMS, so I won't apply more than that to them. Focal Integration speakers were designed to be powered by the factory radio, but the 4-channel amp you mention will work fine.
  • Fred from Los angeles

    Posted on 10/19/2019

    RE: RE: Buck if I removed 1 of the 12 inch Ps-12s from my combination would the Xm-280GTX Then be able to power one sub more or is this amp simply just not designed to push near 250 watts out of the Ps-12 Would only a monoblock / 1 channel Amp work to power these subs ? Should I avoid anything more than 1 channel?

    Buck Pomerantz from Crutchfield

    on 10/21/2019

    Fred, That amp will work well with one of those subs, wired like this.
  • Fred from Los angels

    Posted on 10/19/2019

    Hey buck very im new to this and looking to improve my setups once I learn what I'm doing As my first combination will using : Two SVC 4Ohm PowerBass Ps-12 [250 Watts Rms / 500 watts peak] Along with A Sony XM-280GTX 480 Watts max 1 / 2 Channel Amp 80W x 2 into 4 ohm,  100W x 2 into 2 ohm 200W x 1 into 4 ohm I understand that my (2) 4 Ohms Will become a 2 Ohm if bridged Will I be under powering these subs? What kind of amp would you recommend if I keep the two 12's? Is there any way to wire this amp to power these two subs effectively?

    Buck Pomerantz from Crutchfield

    on 10/19/2019

    Fred, Two SVC 4-ohm subs rated for 250 watts RMS each will work best with an amplifier that an put out up to 500 watts RMS at 2 ohms, like a Rockford Fosgate R500X1D. The only safe way to hook up the gear you describe is to connect each sub to a channel of the amp, powering each 250 watts rated sub with 80 watts RMS.
  • Matthew German

    Posted on 10/17/2019

    Hi Buck, I'm using a Fusion MS-UD755 head unit and possibly a Fusion SG-DA61500 amp in a ski boat. It has 6 Kicker 600m 4ohm speakers and 1 Kicker 10m 4ohm sub. I can't find the RMS on these speakers. Is this a good amp for my setup? should I use an 8 channel amp? I am open to buying new speakers if there is a better option that will fit my system. Thanks

    Buck Pomerantz from Crutchfield

    on 10/18/2019

    Matthew, I can't find any information about a Kicker 600m speaker or 10m sub, so I can't tell if they'll work with that amp or not.
  • Cesar Estades from Bronx

    Posted on 9/29/2019

    I have 4 4ohm speakers each are 200 watts rms. I have all 4 of them wired up series-parallel. What Is the ending rms total of my series-parallel wired speakers?and what size amp do I need ?

    Buck Pomerantz from Crutchfield

    on 10/1/2019

    Cesar, Your four 4-ohm SVC subs rated for 200 watts RMS each can get wired together like this diagram, resulting in a 4-ohm load total. Look for an amp that can put out up to 800 watts RMS at 4 ohms, like a JBL Club 1000.
  • Devin Pletcher from Hoopa

    Posted on 9/24/2019

    Hi Buck. I have been looking at getting a new sub and amp. I use to have a Rockford Fosgate T2D412 the old one with the silver cap, It was a beast . I'm look at getting the new T1d212 or the Kicker L7Q12. I'm also thinking about getting the Memphis 65 series amp. I like the good S/N it clames to have . I'm interested in your thoughts on all of these listed products, and your take and advice. Thanks.

    Buck Pomerantz from Crutchfield

    on 9/26/2019

    Devin, It all sounds good to me.
  • charles bearden from olive branch

    Posted on 9/18/2019

    hey buck! i'm looking into buying 2 of the Memphis Audio BRX1040 Bass Reference Series 10" 4-ohm subwoofer. which have 400 watt RMS and 800 watt peak. i want to run 2 under my back seat in my truck. what are the specs for the amp i should buy? thanks

    Buck Pomerantz from Crutchfield

    on 9/19/2019

    Charles, Two SVC 4-ohm subs rated for 400 watts RMS each will work great with an amplifier that can put out up to 800 watts RMS at 2 ohms, like a Pioneer GM-DX971.
  • Logan from Kaukauna

    Posted on 9/11/2019

    Hi there Buck. I just bought two Pioneer TS-W126M. I was wondering if you could tell me what I all need to instal those in my 2016 Chevy Malibu. Everything is stock, I just want to know what Amp I need, as well as what wiring products I need as well.

    Buck Pomerantz from Crutchfield

    on 9/12/2019

    Logan, Two SVC 4-ohm subs rated for 300 watts RMS each will play well with an amplifier that can put out up to 600 watts RMS at 2 ohms, like a Rockford Fosgate R500X1D. You'll need an 8-gauge amp wiring kit. You'll also need some speaker wire, and of course a subwoofer box or two. You should give us a call and have an Advisor help you get all the right gear for your installation.
  • Sarriola from Seattle

    Posted on 8/13/2019

    Is it better to buy an amp that I will use every channel right away, or if i plan on adding to my system later should I buy an amp with more channels than needed?

    Buck Pomerantz from Crutchfield

    on 8/14/2019

    Sarriola, There's no harm in having unused amp channels in a system that'll get used later.
  • Nuno from Lisbon

    Posted on 8/12/2019

    Hello... I've read the guide and it did enlighted me more, thank you. But in practise I don't know yet what is the best way for what I want... So I intend to upgrade my car sound system with a component speaker set between 80w and 100w (rms) in the front and coaxial speakers in the back also with around the same rms power. What is the most efficient power of the amp that I need? 4x300w or 4x400w?? As for the sub I will put one active subwoofer under the seat.

    Buck Pomerantz from Crutchfield

    on 8/12/2019

    Nuno, A speaker's RMS power rating tells you the most power a speaker can take without breaking. How large a power amp should be depends on how loud you want the system to play. Want to hear your music clearly over the road and wind noises: 50 watts RMS per channel. Like it loud and clear: 75 watts RMS per channel. Want it very loud: 100 watts RMS per channel.
  • johnny from Rockville

    Posted on 8/7/2019

    hello, i have a Toyota 2019 rav4 , (6 speakers, no jbl audio). Speakers sound good, but i'd like to improve the system. Maybe an amplifier and a subwoofer, need help and suggestions to choose the right ones,( mono amplifier or multichannel, etc) Thanks

  • chris from Atlanta

    Posted on 8/5/2019

    Help.... I had a Kicker 43CXA600.1 amp to run my IDMAX 10" subwoofer. This sub is a rec rms of 500W and 1000W max rms. [Link removed] My amp died and so I bought a PIONEER GM-D9701 amp. My speaker definitely does not sound anywhere near as good as with the kicker amp. Is this amp too powerful? I have tried multiple wiring configurations. This speaker is dual 4 ohm - is this somehow not ideal for the pioneer amp? I have the speaker wired to use both coils. So i guess this 4 ohm is now 8 ?? not sure. I am not a speaker/amp expert and am confused as to why the sound is no good. I'm not sure if its distortion or reverberation. I have played with gains and other settings on the amp and it gets much worse when I turn them up. I guess my question is what is the major difference between this amp and my previous kicker amp that could be causing this sound difference. Thank you.

    Buck Pomerantz from Crutchfield

    on 8/6/2019

    Chris, You can wire that sub to that amp like this. Just be sure to set the amp gain low enough so that no distortion ever plays.
  • Danny Lewis from Morrilton, Arkansas

    Posted on 7/5/2019

    Replacing the audio components in my 08 Dodge Ram I have the head unit replaced with a Kenwood ddx672bh. I have the Fosgate 2- P1692 rms 75w and 2 - P152 rms 40w that I'm ready to install. The head unit is rated at max power of 50w x 4 with FBP @ 22w x 4 @ 4 ohm. Would an amplifier be needed to power those speakers? I will be adding a sub, fosgate P2D48 rms 250w @ 4 ohm. Powered with a fosgate R500x1D. But if I should need to amp the other 4 speakers I would be looking for a 5 channel amp. Any suggestions?

    Buck Pomerantz from Crutchfield

    on 7/8/2019

    Danny, Those speakers will sound fine run on the power of that receiver. They'd sound even better amplified. Rockford Fosgate's R600X5 5-channel amp would work well for you.
  • David Smith from Myrtle

    Posted on 6/22/2019

    Can you give me a few pros ,cons, and a suggestion!! Nissan touch screen with Nav, bluetooth etc.. Keep it with up graded speakers and amp. Or up grade head unit,with speakers and a amp??? Thanks

    Buck Pomerantz from Crutchfield

    on 6/25/2019

    David, If you like the features of your factory system and want to improve the sound, go with just adding amplifiers and new speakers.
  • Hugo from Joliet

    Posted on 6/16/2019

    Hey buck I was wondering if the speakers and the amp are sopose to be the same brand or can it be different and it just has to be the same watts?

    Buck Pomerantz from Crutchfield

    on 6/17/2019

    Hugo, The speakers, amps, subs, and receivers in a system can be any brand you want, they do not have to be the same. Their power ratings need to be compatible, though.
  • Canyon from Odessa

    Posted on 6/1/2019

    I'm new to this whole system thing In order to find the right amp to power my whole syetem I am wanting everything the same brand which is JBL and I need to know do I have to add up the watts for the front door back door and sub in order to find the right amp

  • Scott from Lafayette

    Posted on 5/31/2019

    Hello Buck! I have a pair of Massive Audio MK6A components and an Addictive Audio 10.4 amp. The amp does 115x4 @4ohm and 170x4 @2ohm. The MK6As are 150 RMS and 300 Max. Am I safe to use this amp being as its under the RMS by 35 watts? I also have an Addictive Audio 250.1 amp that is obviously overkill for them and meant for subs, but could that be an option if say the 10.4 model is TOO under-powered? Thanks a bunch!

    Buck Pomerantz from Crutchfield

    on 6/3/2019

    Scott, There is nothing wrong with powering speakers below their ratings. They survive being turned down, don't they?
  • John Horwege from San Jose

    Posted on 5/29/2019

    Hello. I have a 2001 Boxster S with factory Nav (2 DIN), 2 front speakers (2 speakers in each), 2 rear speakers (2 speaker each side) and 2 Door "Sub" speakers. It has a Harmon AES DSP Amp in the front trunk. Without busting the bank account, what would you recommend? I was leaning toward a Kenwood DDX97005S. Can the existing amp be used with that or any similar models? If not, what would be the minimum amp requirement be? Thank You!

    Buck Pomerantz from Crutchfield

    on 5/31/2019

    John, Crutchfield's Vehicle Guide shows that that receiver will not fit in your car. It also shows that you can retain the factory amp when you replace the radio with the use of a wiring harness. Why don't you give us a call and have an Advisor help you find the right aftermarket receiver for you and your vehicle.
  • Tommie

    Posted on 5/13/2019

    Hello I have a pair of dB 6501 components Polk audio and same coaxial speakers wats size and channel amp is suitable thanks

    Buck Pomerantz from Crutchfield

    on 5/14/2019

    Tommie, Four speakers need a 4-channel amp, like a Sound Ordnance M75-4, which can put out 75 watts RMS per channel.
  • Dylan from Rancho cordova

    Posted on 5/6/2019

    I have a 600 watt sub and amp works well. I jus revieved my 500 watt 6x9s and my 600 watt 6.5s and 300 watt tweeters. Hoping to find out what wattage of amp i need? Is it all that added or just match the highest of the few??? Plz and thnk u let me know

    Buck Pomerantz from Crutchfield

    on 5/6/2019

    Dylan, Whatever you do, don't use peak wattage specs when planning a system, use RMS specs. If your sub amp is putting out 600 watts RMS, then a 50-75 watts RMS per channel amp should keep up with it.
  • Arron

    Posted on 5/3/2019

    Hello buck, looking for some advice as I'm new to car audio, I'm looking at 2 sets of focal fx3's and 2 subs, would a 5 channel amp be right for what I need?

  • jared from Melbourne

    Posted on 4/22/2019

    hi, i have a pioneer head unit deh - s4050bt the xm - n1004 amp and boxnw1201 subwoofer. im new to this sort of thing and brought stuff without research and in doing so i fried the sub. i am looking to upgrade the speakers in my car also(they are factory), just 2 in the front and 2 in the rear. can you recommend some speakers and a new sub for me?

  • Philip Muleski from Fort Collins

    Posted on 4/19/2019

    What kind of amp do I need for a 12" sub And replacing my factory speakers

  • Darren from rockford

    Posted on 3/27/2019

    im looking into getting a trio 12" subwoofer 900 watt box .. im not sure what wires and amp i should get ? what would be best for this setup

    Buck Pomerantz from Crutchfield

    on 3/27/2019

    Darren, Without knowing precisely what subwoofer you're referring to, we can't help you with advice. If you want a question answered about a system, you must identify the gear by brand names and model numbers so we can get the right information to you.
  • Alex Roberts from Canton

    Posted on 3/19/2019

    Hi, I am getting 4 kicker speakers, 2 are 200w and 2 are 240w. What size amp would be suitable for these?

    Buck Pomerantz from Crutchfield

    on 3/20/2019

    Alex, The power ratings of speakers don't convey a lot of information about what size amp to use. Your preference of how loud you like to listen to your music is a better indicator of amp size. You want to hear your music clearly over the road noise: 50 watts RMS per channel. Like it full of feeling: 75 watts RMS per channel. Like it blasting; 100+ watts RMS per channel.
  • Lucas Cairns from Lansing

    Posted on 3/18/2019

    Hello sir, I have one 12" kenwood KFC W3012 subwoofer I would like to hookup and not sure what amp to get, mono or 2 channel and what power. The woofer is 400 RMS. any help would be greatly appreciated.

    Buck Pomerantz from Crutchfield

    on 3/19/2019

    Lucas, That SVC 4-ohm sub rated for 400 watts RMS will work great with an amplifier that can put out between 300 and 600 watts RMS at 4 ohms, like an Infinity Kappa K600.
  • Mike

    Posted on 3/18/2019

    Hey Buck, I have a JVC KD-X35MBS system with 4, 6.5" JVC-DRVN speakers. I also have a POLK sub rated at 740W. I had a Rockville RXMF-3 amp hooked to it and it looks like a couple capacitors blew out inside the amp. I am looking for recommendations for a replacement amp. What do you suggest?

    Buck Pomerantz from Crutchfield

    on 3/18/2019

    Mike, How about a Soundstream PN5.640D. It's not only compact it'll power four speakers and a sub.
  • Josh from Phoenix

    Posted on 3/17/2019

    Hello Buck, I purchased a JL Audio 15W0v3-4 15in 4ohm Sub. Should i stick with a mono amp or get a 2 channel? any recommendations for watts/RMS, i want to find an amp that will last and wont overheat. THANKS!

    Buck Pomerantz from Crutchfield

    on 3/18/2019

    Josh, That SVC 4-ohm sub rated for 500 watts RMS will work great with an amp that can put out between 375 and 750 watts RMS at 4 ohms, like anAlpine PDR-M65.
  • Cody G from Redding

    Posted on 3/9/2019

    In my boat I currently have 4 speakers 2 (6.5) and 2 (6x9) that are running off the stereo. However I will be adding a single 12 inch sub along with 4 (6.5) tower speakers I believe the tower speakers are paired together since they are not single units but dual 6.5 speaker together with one speaker outlet. What kind of amp would I need to power the tower speakers along with the single 12 inch sub.

  • Frank from Douglasville

    Posted on 3/8/2019

    I have a kenwood 12 inch Dvc 4ohm 1000 watt rated what wattage of amp do I need for it please

    Buck Pomerantz from Crutchfield

    on 3/8/2019

    Frank, That power spec sounds like a peak power rating, which you should never use when planning out a system. If you have a Kenwood KFC-W12DVC, then it's rated for 250 watts RMS, and will work best with an amp that can put out between 185 and 375 watts RMS at 2-ohms, like an Alpine MRV-M250.
  • Blair

    Posted on 3/8/2019

    I have 2 4ohm kicker 6.5 speakers and a Kenwood's KMR-M325BT. I want to install another two more speakers and a subwoofer. Will i need an amp also or should i just add an subwoofer to the 2 speakers i have already

    Buck Pomerantz from Crutchfield

    on 3/8/2019

    Blair, Your receiver has four powered outputs, so it can drive four speakers. A subwoofer will need a separate amplifier.
  • Jay Arnold from Panama City FL

    Posted on 3/7/2019

    I have a 16 dart with the 8.4 uconnect touchscreen ran a LOC to trunk where have 2 memphis 10s ended up getting cheap walmart amp for the moment its the RZR2500 hits kinda hard. After Hurricane Michael tree fell on other car & flooded it out lost 3 kicker 12s kicker 1000/1 what size amp would work best for 4 kicker 6x9 in the 4 doors of the car

  • Nadeem from Dammam, Saudi Arabia

    Posted on 3/6/2019

    Hello sir, I have purchased an Orion HCCA122 HCCA Black Coil Series 12" Sub Woofer 5000 Watts MAX / 2500 Watts RMS Dual 2-Ohm Voice Coil Competition Subwoofer - 2019 Model. Please could you help me to advice which amplifier should I buy to power this sub?

    Buck Pomerantz from Crutchfield

    on 3/7/2019

    Nadeem, A DVC 2-ohm sub rated for 2500 watts RMS will sound best when powered by an amp that can put out between 1875 and 3750 watts RMS, like a Rockford Fosgate T2500-bdCP. But then again, I don't know what amplifiers are available in your country.
  • Joe from Morrow la

    Posted on 2/24/2019

    I have 2 kicker compvr dual voice coil an I have a crunch 1600 amp 2 channel but I'm having a problem with the subs nearly hit hard then all off a sudden they start hitting really have I dk what's going on with it

    Buck Pomerantz from Crutchfield

    on 2/25/2019

    Joe, If you bought your gear from Crutchfield, you could call Tech Support for free help troubleshooting your system. Their toll-free number would be on your invoice. If you purchased your equipment elsewhere, you can still get expert Crutchfield Tech Support - 90 days-worth for only $30. Click on this link for details.
  • Eulalio from Eagle Pass

    Posted on 2/12/2019

    Good afternoon, I have a question, I want to install it to my sonic 2016 sedan the Rockford Fosgate 300-Watt Bass Package Includes R500X1D amplifier and R1-1X10 sealed enclosure with one 10 "subwoofer, the question is, can my factory stereo with that package?

    Buck Pomerantz from Crutchfield

    on 2/12/2019

    Eulalio, That amplifier has speaker-level inputs, so it can get its input signals from your vehicle's factory stereo speaker wiring.
  • Nathan from Chicora

    Posted on 2/5/2019

    Hi I am new in the car audio scene. Have never really messed with it but have done some of my own research and just wanted to make sure. I am looking into using kicker 43css654 in the front doors and kicker 43csc674 in the back doors of a 2012 Focus. Also I want to connect a kicker 43tc104 sub. I plan on running it all off of a planet audio ac1800.5 anarchy 5 channel amp. I'm going to keep the stock receiver so I will use a audiocontrol lc2i 2 channel line out converter to add the amp. Do you think this will be a good setup and will everything work well together? Thank you!

    Buck Pomerantz from Crutchfield

    on 2/6/2019

    Nathan, That amplifier's power ratings are over twice the ratings of those speakers and sub, so I wouldn't use them together if I were you.
  • Eugene from WIlmington, NC

    Posted on 2/2/2019

    Hi Buck, I have a 2011 Honda Pilot Touring. It has the 10 speaker system with NAV. It also has RES. I am not sure what I need to properly power that while maintaining my Factory Head Unit. How many channels does this system actually have? Which "Channel" LOC and AMP would work best?

  • Ghazi from Beirut

    Posted on 1/16/2019

    Dear buck I want your advice , about 1 year ago i installed an 4 CH. amp and pioneer champion subwoofer and two kenwood 6*9 rear speakers , the subwoofer is connected to 2 CH. Bridge and 2 CH. for the 6*9 speakers and the four doors speakers is connected to pioneer deh-x8800bhs and now I am planning to make a surround system something like burmester so i will have 14 speakers (four 6.5" - four 4" - four tweeters - two 6*9 ) all speakers will be connected to the amp but my problem is with the AMPs , should i use two amps 4 CH. for the speakers and one mono amp for the sub and is it too much for the battery and the alternator to run 3 amps and for sure i am gonna install a capacitor ..... what do you think ?? If you have a nice wiring diagram for this setup plz tell me ... Regards....

    Buck Pomerantz from Crutchfield

    on 1/17/2019

    Ghazi, It sounds like using two 4-channel amps and one sub amp is the way to go. Without knowing precisely what amps or vehicle you're referring to, we can't help you with power advice, though. If you want a question answered about a system, you must identify the gear by brand names and model numbers so we can get the right information to you.
  • Cody

    Posted on 1/14/2019

    What amp should I get for a 100 watt rms jbl 10 inch subwoofer?

    Buck Pomerantz from Crutchfield

    on 1/14/2019

    Cody, Without knowing precisely what sub you're referring to, we can't help you with advice. Is the sub DVC or SVC, and what's its impedance? If you want a question answered about a system, you must identify the gear by brand names and model numbers so we can get the right information to you.
  • victor quinones from san juan

    Posted on 12/8/2018

    Hi what amplifier you recomended for 2 speakers in front door rockford fosgate 6 3/4,2way, 45watts rms and 2 speakers rear jbl 6x9, 2way 100watts rms 4 channel? in toyota corolla 2012. What is the best amps? For install down the passenger seat. Thanks

  • James from Wentzville

    Posted on 12/1/2018

    I have 6 kicker 6.5, 2 kicker 8 inch, and 1kicker 10 sub. I was wondering if I can get a 8 channel amp or should I get two amps all marine speakers

    Buck Pomerantz from Crutchfield

    on 12/4/2018

    James, You can power your eight speakers with an 8-channel amplifier, like a JL Audio XD800/8v2. And then you'll still need an amp for the sub.
  • Bruce from Lake City FL

    Posted on 11/29/2018

    Hey Buck. I just bought and installed a planet audio 4000x1 amp and hooked them up to 2 Rockford fosgate r2d2 12". Sounded great for a while (a month or two) but then the amp went to protect mode. I wired them correctly. It sounded muffled and then just cut off. Both speakers still flex, not rigid and poked way out. Can you send me in the right direction to figure it out?

    Buck Pomerantz from Crutchfield

    on 11/29/2018

    Bruce, It sounds to me that your two DVC 2-ohm subs were wired together forming a one-half-ohm load, and the amp worked with it for a while, and then stopped. Two DVC 2-ohm subs should get wired to that amp as a 2-ohm load like this.
  • Alfredo from Tucson

    Posted on 11/24/2018

    Hello Buck, i have a question; just bought a 2004 Jaguar X type 2.5 and the Amp does not work i want to keep the original cd stereo but still want to enjoy bluetooth capabilities on my car sound system (6 original alpine speakers) I was thinking in buying a bluetooth amp, but i dont know what to pick that suits what i have. Txs in advance

  • jose moya from st cloud

    Posted on 11/3/2018

    2018 Hyundai Tuscon Sport I have an aftermarket head unit with jl c1 650x and jl c1 650 want to add subwoofer and amp i have the factory subwoofer enclosure I want to power sub only not speakers recommendations thank you

  • Sebastian

    Posted on 7/5/2018

    What about the length of the speaker cable? Same length for all 4 doors or according to the distances between each speaker to the amplifier?

    Buck Pomerantz from Crutchfield

    on 7/5/2018

    Sebastian, The electrical signals travel so quickly through speaker wires that the short differences in length don't matter nor can be heard. What can be heard are the small differences in the distances between the speakers and your ears, because the speed of sound is much slower than electricity. We compensate for this by using time-alignment, either in the receiver's menu or an aftermarket digital signal processor.

    Posted on 6/26/2018

    i have 6 jl audio 10 inch marine speakers...and 6- 7.7 jl audio marine speakers i bought from you guys.what amps should i buy to push these.Thanks Mark

    Buck Pomerantz from Crutchfield

    on 6/27/2018

    Mark, My first thought was to recommend you getting two JL Audio M600/6 6-channel marine amplifiers. But if those six 10-inch speakers are really subwoofers, then you'd want a larger amp for them. Why don't you give us a call and talk to an Advisor who can hook you up with the right gear for your system.
  • Essie from Manila, Philippines

    Posted on 6/15/2018

    Hi, Crutchfield. I have a technical issue with two different setups that I'm looking at now and that I was really hoping that you could steer me to the right direction. Also, a clarification on your article would be appreciated (if I don't use up the allotted maximum number of characters). So please bear with me. Setup 1: 100wRMS Component Speakers (front) + 60wRMS Coaxial Speakers (rear) Setup 2: 100wRMS Component Speakers (front) + 40wRMS Coaxial Speakers (rear) With your 75%-150% Rule stated in your article above, but disregarding any brand preferences, what would be the MAXIMUM Power of a 4-Channel Amplifier that would make the setup sound really good, crisp, and clear, but would not damage the speakers at the back? Setup 1: 100wRMS = 75w (75%); 150w (150%) 60wRMS = 45w (75%); 90w (150%) From the parameters given above, the intersecting/common values would be from 75w to 90w. I know that I could still use an amplifier that puts up to up to 90wRMS (i.e., 150% of 60wRMS but 90% of the 100wRMS). But, how about for the second setup? Using your 75%~150% rule would not give an intersecting/common values. Setup 2: 100wRMS = 75w (75%); 150w (150%) 40wRMS = 30w (75%); 60w (150%) With that in mind, using a 60w amplifier would be too small to drive the components at the front; but, if I choose a 75w amplifier, I'm afraid that that would damage the speakers at the back. Music preferences are acoustic, folk/country, and pop BUT, would sometime play

    Buck Pomerantz from Crutchfield

    on 6/18/2018

    Essie, A speaker's RMS power rating is there so you will have some idea of the largest amp that'll work safely with it. If you have a system with 40 watts RMS rated speakers, don't use an amplifier larger than 60 watts RMS per channel. If you want to better match your speakers and amps, you can always get two 2-channel amplifiers, one for the front channels, one for the rear.
  • Buck Pomerantz from Crutchfield

    Posted on 5/30/2018

    Heman, A little-understood spec is a speaker's SPL rating. It's a measure of a speaker's efficiency, how loud it should play when fed a 1-watt signal and measured from a meter away. The only recommendation we make is that the smaller your amplifier, the larger you'll want the speaker/sub's SPL rating to be.

  • Heman from Miami, Fl, USA

    Posted on 5/26/2018

    at the rated 50-200 W for a subwoofer, what SPL rating would you recommend for a speaker? Eg: It makes a huge difference if the subwoofer is a 6" with 87dB SPL driven by 50W, vs a 12" 103dB SPL speaker driven by 200W

  • Buck Pomerantz from Crutchfield

    Posted on 5/23/2018

    Kaiden, Power your front and rear speakers with a 4-channel amp. Then, when you get two more speakers, get a 2-channel amp to power them. And a mono amp can definitely power two subs, just get one strong enough to handle both.

  • Kaiden Ford from Jamestown

    Posted on 5/17/2018

    What amp set up would I need if I want to power 4 speakers, a possibility of 6 and add 2 subs. I've got an 89 Chevy k1500 and I've got Kicker 43DSC4604 4x6, 2 in front and 2 in back. I might add an addition pair of speakers in the kicker panels, but I for sure want to add 2 subs. If I don't add the addition 2 speakers, and have only 4 speakers and 2 subs what channel amp or amps would I need? And is a monoblock amp capable of powering 2 subs? Also what channel amp or amp would I need if I add those 2 additional speakers onto the speakers and the 2 subs? I pretty much know how to deal with wattage but I don't know how to choose the correct channel amp.

  • Buck Pomerantz from Crutchfield

    Posted on 5/11/2018

    Sudhan, I'd go with the JL Audio amp, it's louder and louder always sounds better. I doubt you'll be able to hear any harmonic distortion while driving.

  • Sudhan from Bangalore

    Posted on 5/11/2018

    I am trying to buy a 4 channel amp which is going to power 4 speakers of Focal RSE 165 & Focal RCX 165, so I am in a fix between JL Audio JX400/4D and Alpine MRV-F300. Cons of MRV-F300 - Lesser RMS Power Output Cons of JX 400 is THD at Rated RMS Power and Signal-to-Noise Ratio. Which one would you suggest to buy between the two ?? Rgds,

  • Buck Pomerantz from Crutchfield

    Posted on 4/17/2018

    Delturon, When your sub amp hits hard, it's trying to draw as much as 200 amperes of current from your vehicle's electrical system. As the amp strains to get that unobtainable amount of current, its power supply voltage drops, and the amp goes into protect mode. I think if you want it that loud, you'll have to upgrade your vehicle's alternator.

  • Delturon Sanders from Las Vegas

    Posted on 4/17/2018

    I have a 2014 RAM 2500 diesel Crew Cab and I am having problems with my mono block amp turning during bass heavy songs and then it turns back on after a little while. My system consists of the following components. Any help will be greatly appreciated. Head unit Kenwood 9903s 4 channel amp Pioneer GM-D8604 Maximum Power Output1,200 Watts Door speakers Kicker: component speakers in the front and 6x9 speakers in the rear doors Mono Block Amp: Soundquebed Q1 2200.2 ran @ 1 ohm power @ 14.4V 2300W x 1 @ 1O Subs are Incriminator Audio: 2 Lethal Injection 1000 Watt rms 4ohm Dvc wired for 1 ohm 180 amp stock alternator 2 stock batteries

  • Buck Pomerantz from Crutchfield

    Posted on 4/9/2018

    Kevin, The only spec with meaning is the RMS rating. Look for an amp that can put out between 75% and 150% of that 115 watts RMS rating, like a Pioneer GM-D8604.

  • Kevin Thomas from Charleston

    Posted on 4/8/2018

    6x9" 600 Watt 4-Way Car Audio Coaxial Speakers Stereo MAX Power: 600W RMS Power: 115W Impedance 4 ohms What is the best amp rating to go with these specifications??

  • Buck Pomerantz from Crutchfield

    Posted on 4/4/2018

    Cory, An 8-channel amp, like a JL Audio XD800/8v2 might work great in your situation.

  • Cory from Richmond

    Posted on 4/1/2018

    I have (4) kicker 5.25 door speakers 225watt-75rms, (2)1in. 150watt-75rms tweeters (1) 3.5 100watt-50 rms dash speaker and (1) 300watt-150rms 10inch sub in rear deck. What amp would you recommend? In a 02 Cadillac Deville

  • Buck Pomerantz from Crutchfield

    Posted on 3/5/2018

    Arthur, Power specs for speakers are confusing and meant as guidelines to prevent abuse and un-warrantied repairs. Your new speakers will work well with the 50 watts RMS they'll each be getting. The good news is that if that proves to be not loud enough for your tastes, you can upgrade the amp to a 100 watts RMS per channel amp. You control the amount of power each speaker gets with the receiver's volume, balance, and fade controls.

  • Arthur Husein from Lewisville

    Posted on 3/2/2018

    I have installed four aftermarket speakers into my 2015 Nissan Sentra. A pair of Kicker coaxial speakers (Model: 44KSC6504) with 100W RMS each in the front doors and a pair of JBL 6x9 3-way speakers (Model:GX963) with 100W RMS each in the rear deck. I purchased a Kicker 600W 4-channel amp (Model: 43CXA3004) to power the four speakers. I have read a few articles on Crutchfield and used the 75%/150% rule, but I would like to be certain. Is this amp is more than enough to power the four speakers? I would rather have too much power than too little so I can control how much power goes to each speaker. Thank you!

  • Buck Pomerantz from Crutchfield

    Posted on 2/2/2018

    Peter, A great way to power two speakers and a sub is with a 3-channel amplifier, like a JL Audio MX600/3.

  • Peter Johnstone from COLAC

    Posted on 2/1/2018

    Hi. I have two 6x9 3 way sony explode xs-fb693e EMS power 60w, peak power 420w, rated power 50w, rated impedance 4ohm and a Sony explode sub in box BOXNW1200 high power bass reflex subwoofer system 1800w. What size amp should I use for this system?

  • Buck Pomerantz from Crutchfield

    Posted on 12/19/2017

    Jackson, A great way to power four speakers and a sub is with a 5-channel amplifier, like the compact Soundstream Picasso Nano PN5.640D.

  • Jackson from Auburn

    Posted on 12/18/2017

    I have a crew cab pickup. I have 4 new speakers and a 10 inch sub. What size amp do I need?

  • Buck Pomerantz from Crutchfield

    Posted on 11/8/2017

    Rodrigo, You can use Y-cords to get four amp inputs from two receiver outputs, but you'll lose the front-to-rear fader function. A better way is to get a 4-channel amplifier that has a pair of preamp outputs. You'd connect the front and rear RCA outputs of the receiver to the 4-channel amp and then run a RCA pair from the preamp outs to your sub amp's inputs.

  • Rodrigo M.

    Posted on 11/7/2017

    Hello, I have a Pionner stereo, 4 Kicker speakers and a kicker powered sub but now I want to add an amp for my speakers, How can I add a 4 ch amp if I'm already using a pair of the rca outputs (rear/sub) for the powered sub?

  • Donovan from Yakima

    Posted on 10/18/2017

    I'm wanting to run JL C2-400X speakers in the front and JL C2-690TX in the rear. What would be a good amp to run this setup? Preferably 4-channel.

  • Buck Pomerantz from Crutchfield

    Posted on 10/12/2017

    Charles, Four DVC 4-ohm subs can only get wired together as an 8-ohm, 32-ohm, a 0.5-ohm, or a 2-ohm load. A cool and economical amp is Kicker's CXA1200.1, which will put out 1200 watts RMS total, 300 to each sub, wired to your subs like this. Most mono, 1-channel amplifiers have 2 speaker output terminals that are wired together inside the amp. The second speaker output terminal is there for convenience and if you hook a speaker to each terminal it would result in the two speakers being wired in parallel, cutting the total impedance in half.

  • Charles from North royalton

    Posted on 10/11/2017

    Ok Buck. I have four American bass VFL 8D4 subs. I call them my little monsters. They are 800 watt max, 400 watt rms each, DVC 4 ohm. I know I can run them at a 0.5, 2 ohm and I believe 8 ohm. I'm running a 160 amp alternator in my 03 Tahoe. I made a four hole box out of 3/4 MDF, .73 cubic feet per sub tuned to 37 Hz. My issue is what amp should I get? I kinda want to run 2 ohm mono but I see a lot of mono amps with 2 speaker outputs. If I wire two subs in parallel can I put 2 subs on one output each at 1 ohm? Or will the amp get a lower ohm if I do that?

  • Tom from Sydney

    Posted on 10/3/2017

    Lifesaver! Thanks Buck

  • Buck Pomerantz from Crutchfield

    Posted on 9/23/2017

    Tom, You are describing what happens when one speaker is 180 degrees out of phase from the other speaker. Reversing the polarity of one of your speakers, switching the positive and negative leads, will solve the issue.

  • Tom from Sydney

    Posted on 9/22/2017

    Hi Buck. I recently bought a car with a low quality system in it. Today I upgraded the rear 6x9's with a pair of good quality Pioneer 3 way speakers. (I chose 6x9 because the holes were already cut in the parcel shelf). However, when I play music, there is no bass coming out of them - unless I alter the L-R balace to left side, or right side, then the bass kicks in nicely. But I cannot have bass on equal L-R balance. The head unit is a cheap no name system, and there is no amp installed. Is this the reason behind the issue? It can't handle the output to supply both 6x9 at the same time? Ideally I don't want to install an amp, I don't know how to, and I am not after massive bass. If I upgraded the head unit to a quality brand, would this solve my problem? Cheers Tom

  • Buck Pomerantz from Crutchfield

    Posted on 9/21/2017

    Aaric, Two single voice coil (SVC) 8-ohm subwoofers rated at 200 watts RMS each will work best with an amplifier that can put out between 300 and 600 watts RMS at 4 ohms. Not knowing exactly what amplifier or subwoofers you have make it impossible to give advice about them, though. If you want a question answered about your system, you must identify the equipment by brand names and model numbers.

  • Aaric from Joliet

    Posted on 9/20/2017

    I have 2 12" 8ohm 200w rms woofers and im looking at a 2 channel 400w peak amplifier. If i am correct, if i were to bridge the 8 ohm woofers to 1 channel my amp would have a 4 ohm load and put out roughly 150w of power? Is this accurate?

  • Buck Pomerantz from Crutchfield

    Posted on 9/18/2017

    Jon, If you like the way your system sounds, I don't see why you need to change a thing. That amplifier will drive those speakers and tweeters just fine - it won't mind the 2.67-ohm loads.

  • Jon

    Posted on 9/15/2017

    Hello. Just want to clarify some things if what I'm doing is acceptable. I have a 2 ch amp Kenwood KAC-5207 for my car speakers and a 2 ch amp for my subs. For the Kenwood KAC-5207 amp, each channel I connected in parallel the Pioneer TS-G690 speaker 4 ohms 45W rms & Pioneer TS-S20 tweeter 8 ohms 50W rms. Total connected impedance will be 2.67 ohms. Pls advise if there is a need to change. Thanks a lot...

  • Buck Pomerantz from Crutchfield

    Posted on 9/11/2017

    John, That amp will be fine for your speakers as long as you set the amp gain so no distortion ever plays. If you decide to add a subwoofer or two to your system, I recommend getting a separate subwoofer amplifier. Otherwise you'd lose all balance and fade controls for your different speakers, if you ran four speakers off the front two channels of the amp and the subs from the rear channels bridged.

  • John Aaron from Manila

    Posted on 9/11/2017

    Good Day Sir! I want to upgrade the speakers of my Honda City 2016 but still using the factory HU. I have 2 pcs front door speakers (Polk Audio DB652 DB+, 100W RMS 300W peak) and 2 pcs rear door speakers (JBL GT7-6 6.5" 2-Way, 45W RMS 135W peak). If I will use 4 ch amp PIONEER GM-D8604, is there any technical conflict to the JBL speakers since the RMS value of the amplifiers is more than twice? Also, if ever i will use my 2 pcs (or 1 pc) Pioneer Subs (TS-W259S4, 10 inch 1200W max 50-350W RMS) what will be the set-up of the coaxial speakers using the same PIONEER GM-D8604 amps? Really appreciate your reply. Thank you sir.

  • Buck Pomerantz from Crutchfield

    Posted on 9/6/2017

    Sam, A great solution for your situation would be a JL Audio MX600/3, capable of sending 75 watts RMS to your front speakers and 400 watts RMS to your subs.

  • Sam

    Posted on 9/5/2017

    I wanna add 4 65 RMS door speakers and 2 10 inch 4-ohm 200 watt RMS to my truck. What would a good amp be to power all of them? Or would it be better to get one amp for the door speakers and one for the subs?

  • Buck Pomerantz from Crutchfield

    Posted on 8/31/2017

    I've forwarded your questions to Crutchfield's Sales Advisor Team, and a member will get in touch with you by email to offer suggestions and help you choose the right gear for you and your vehicle. For immediate help, you can contact them via phone or chat - just click on the text balloon icon at the very top of this page.

  • Buck Pomerantz from Crutchfield

    Posted on 8/31/2017

    Suresh, I think you may want to look into getting two sets of component speakers, each consisting of a pair of matching tweeters and woofers with a crossover. Each set would require one channel of amplification for a tweeter and a woofer. For front and rear speakers, that would require a 4-channel amplifier. If you want to add a subwoofer, you can either add a mono 1-channel sub amp, or start with a 5-channel amplifier. I don't know what car stereo equipment or even what model vehicles are available in your country, so I can't give you a recommendation.

  • Abraham from Miami

    Posted on 8/26/2017

    Hello, I have Alpine´s 6" SPS-610-C (80W) and 6x9 SPE-6090 (75W) . I need an amplifier for these, is the Alpine KTP-445U good enough for my setup? Or should I get a better one? I also plan on getting a Subwoofer, can you recommend any to pair with my speakers? Two amplifiers or one for all? Thank you so much!

  • Suresh kumar from Thiruvananthapuram

    Posted on 8/26/2017

    A little help... I have Sony XAV AX100 aftermarket headset in the car now singing on 4 factory speakers. I like to convert it into a component sound set up... 4 mid range speakers (70 RMS each) of 6", 2 or 4 tweeters (value not decided yet) and a subwoofer of 12" with some 300-500 RMS value. My doubts are: 1. Can I use the amp Sony XM-GS4 4channel amp for the 3 level (sub, woofer, tweeter) component sound set up? 2. If the amp is too inadequate can I add a second amp (mono) of 500 RMS to move the subwoofer? 3. Then remains the tweeter. How can I include the tweeters in the amplification process? Can I do the first 2 tweeters a parallel combination with the front speakers and the other 2 tweeters with the back door speakers ? Will this step reduce the front/back speaker's power output? Is it safe for the tweeter as well?

  • Buck Pomerantz from Crutchfield

    Posted on 8/17/2017

    Brian, A great way to power two speakers and a sub is with a 3-channel amplifier, like JL Audio's MX600/3.

  • Brian from Corpus Christi

    Posted on 8/17/2017

    Hello, I have a 2003 Honda S2000, I would like to upgrade the stock speakers to JL Audio C3-600. Also I'm pairing that with a JL Audio 12W3v3-4 Subwoofer. What amplifier setup should I run? Single or dual amp? I would like to stick with one brand.

  • Buck Pomerantz from Crutchfield

    Posted on 8/10/2017

    Alexander, That subwoofer will work great with that amplifier. Go for it and rock on.

  • Alexander

    Posted on 8/8/2017

    So, I've got this JBL GTO-501EZ amp. I'm about to buy JBL GT5-2402BR subwoofer. So this subwoofer works on 2 ohms and has 550w RMS; this amp I have will give 500w RMS if connected to a 2 ohms subwoofer. I've seen a one and only review on Youtube, that guy showed us this amp's power goes above 500w RMS (tested with SMD Amp Dyno, both 2 & 4 ohms impedance). Is this amp perfect for this subwoofer?

  • Buck Pomerantz from Crutchfield

    Posted on 8/5/2017

    David, Not knowing exactly what subwoofers you have make it impossible to recommend an amplifier for them. Subs don't have two different RMS power ratings. If you want a question answered about a system, you must identify the equipment by brand names and model numbers.

  • David from chillicothe

    Posted on 8/4/2017

    I have two 175watt RMS 300watt RMS 4-ohm subs. What amp should I get?

  • Buck Pomerantz from Crutchfield

    Posted on 7/31/2017

    Devin, How to power twelve drivers depends on where they are in the vehicle, which can be wired together and which can't without losing balance/fade function, and what their nominal power ratings are. Give us a call, toll-free at 1-888-955-6000, to go over your options with an Advisor, who'll help you get the right amp for your system.

  • Devin from Tacoma

    Posted on 7/30/2017

    I want to run 6 coaxles and 6 tweeters in my car what amp would be best or do i need two amps?

  • Buck Pomerantz from Crutchfield

    Posted on 7/24/2017

    Dailami, You probably will not hear the background noise of an amplifier with a signal-to-noise ratio of 75 dB over the road and wind noises your vehicle generates. Likewise, you probably won't hear any differences between amplifiers with super-high-frequency responses. Most multi-channel amplifiers have input selector switches so that a 2-channel input accommodates 4- or 6-channel outputs, for example.

  • Buck Pomerantz from Crutchfield

    Posted on 7/24/2017

    Chet, You should never use peak specifications when planning a system - only use RMS ratings. Rockford Fosgate Punch P1 subwoofers are rated for 250 watts RMS each. Without knowing their impedances (ohms), I can't tell you what amp would work best for them. I can tell you that a 2-channel amp with an output of 900 peak watts probably won't.

  • Dailami

    Posted on 7/23/2017

    Is a signal to noise ratio of 75db acceptable in a car amplifier? Would an amp with a frequency response of up to 50 Khz sound better and clearer than another one with up to 35KHz? as far as I know, human hearing reaches 20KHz only, so is the rest an overkill? and lastly I have a 2 channel output on my playback device, can I use RCA splitters to feed 4 or 6 channels to an AMP?

  • Chet from Pittsburgh

    Posted on 7/22/2017

    I have 4 Rockford fosgate p1s with a 500 rms and a 2 channel pioneer amp that's got a 900watt peek what amp would be best for them all to be connected to without overheating or frying the amp should I get a 4 channel amp with a high wattage or go for another route

  • Buck Pomerantz from Crutchfield

    Posted on 7/11/2017

    Roger, A web search shows me at least two online car audio dealers in the UK that sell 5-channel amplifiers, but then I don't exactly know your definition of a "moderate price." If you're looking for a separate amp for that sub - it'll sound best with one that can put out between 188 and 375 watts RMS at 4 ohms, like a Pioneer GM-D8601.

  • Roger from Austin

    Posted on 7/9/2017

    Hello Buck, I have a Kenwood KDC-X7000 DAB, two pairs of JBL GX862 speakers and I will be adding a amp and subwoofer(JL Audio CP108LG). My question is can I get away with adding a small compact amp for the four speakers and a mono amp for the 8 inch sub? Moderate price 5 channel amps are hard to find where I am currently located(UK). I am currently looking at the Pioneer GM-D8604 and possibly a mono amp. Which amps would you recommend? This is for a 2003 Ford Focus.

  • Buck Pomerantz from Crutchfield

    Posted on 6/29/2017

    Zach, That equipment will work okay together. Just make sure you set the amp's gain so no distortion ever plays.

  • Zach from Dallas

    Posted on 6/29/2017

    Would a Wet Sounds HT-2 amplifier (165 watts RMS x 2 channel) be too much to power two Wet Sounds XS-650 speakers (100 watts RMS each)?

  • Buck Pomerantz from Crutchfield

    Posted on 6/22/2017

    Kyle, A single DVC 2-ohm subwoofer rated for 1400 watts RMS will sound best with an amp that can put out between 1050 and 2100 watts RMS into one ohm, like a Memphis Audio PRX1500.1.

  • kyle from belleville

    Posted on 6/21/2017

    hi i have Power Acoustik GW3-15 1400W 15" Gothic Series Dual 2 Ohm Subwoofer 3000 watt max whats the best amp i can go with without blowing my subs

  • Buck Pomerantz from Crutchfield

    Posted on 5/1/2017

    Ed, A speaker's RMS power rating tells you more about what amp not to get than what amp to get. In your case you shouldn't get an amplifier more powerful than about 120 watts RMS per channel. In other words, almost any 4-channel car amplifier will work. If you're just looking for some sound reinforcement, maybe a compact Clarion XC1410, 50 watts RMS per channel amp will do. Or if you like it loud, check out Pioneer's GM-D8604 at 100 watts RMS per channel.

  • Ed from Milwaukee

    Posted on 4/30/2017

    I will be installing four 6 x 9 speakers rated at 1600 watts total with a RMS of 120 watts per speaker. What type of amp and how many watts will be needed? Thanks

  • Buck Pomerantz from Crutchfield

    Posted on 4/27/2017

    Zach, Any speaker that will fit in your car will work with that receiver. Unfortunately, the 1968 Camaro has not been researched by our Product Researchers, so you'll have to measure the mounting holes yourself for size and depth to see if an aftermarket speaker will fit or not. It might be best to look at a Retrosound replacement speaker for the dash location.

  • Zach from Virginia

    Posted on 4/26/2017

    I have a retrosound Hermosa 25x4 rms channel radio for my 68 Camaro, what speakers/ watts would work with it? the car is loud and I just want the system to sound good that I can hear like normal, has room for a speaker in the dash and two in the back.

  • jonathan from Honolulu

    Posted on 4/11/2017

    That was a typo on my part. I meant the new kxa series not zxa. I have a custom enclosure for my car and the rest of the wires I will get from the installer when I get everything installed. Just waiting for someone to carry the amp I desire. Thank you very much for the input about the amp though, that was my biggest concern. Didn't want to overpower and destroy them.

  • Buck Pomerantz from Crutchfield

    Posted on 4/11/2017

    Jonathan, I don't know about the model Kicker amp you mention, but if it's like their CXA and KXA series amplifiers it'll put out 1200 watts RMS at 2 ohms. Your subs will be fine as long as you set the amp gain properly and avoid playing distortion. For your installation, in addition to the subwoofers and amplifier, you'll need a subwoofer enclosure or box, a 4-gauge amplifier wiring kit, some speaker wire, and a couple of RCA-to-bare-wire adapters to get speaker-level signal to the amplifier's inputs. Why don't you give us a call so an Advisor can help you get everything you need for your setup.

  • Jonathan from Honolulu

    Posted on 4/11/2017

    I have a 2016 Kia Soul ! (With the infinity sound with navigation). I recently purchased 2 43CWRT102 and planning on purchasing the kicker zxa1200.1 amplifier due to its awesome technology. I have 2 questions first would I be overpowering the speakers with this amp? Do I need any additional equipment to connect to my factory head unit.

  • Buck Pomerantz from Crutchfield

    Posted on 3/27/2017

    Frank, Yes you can.

  • Buck Pomerantz from Crutchfield

    Posted on 3/27/2017

    Dwayne, A good solution for you would be to get a 5-channel amplifier, like a Pioneer GM-D9605, that'll take care of all your speakers and sub from one compact chassis.

  • Frank Lelievre from Québec City

    Posted on 3/27/2017

    Can i use only 3 out of the 4 chanels in my amp

  • Dwayne from Jersey City

    Posted on 3/27/2017

    Peace and blessings. I have a 12" kicker 43VCWR122 at 2-ohm impedance with 500w RMS - peak at 1100w. I also have a pair of front speakers Rockford fosgate Punch P132 3.5-inch gama completa Altavoces coaxiales, 17 cm (Pair) at 60w RMS. What size amp should I get? How many channels?

  • Buck Pomerantz from Crutchfield

    Posted on 3/24/2017

    Keith, It is perfectly okay to mix brands of gear in a system. Even without hearing the results, I think the equipment you've chosen will sound excellent together. Just be sure, if you're installing the amplifier yourself, to set the front, rear, and subwoofer channels' gain so no distortion ever plays.

  • Keith from Altamonte Springs

    Posted on 3/23/2017

    I am planning on installing 4 new speakers (2 components: Polk DB6501 and 2 coaxials: JBL GTO638) and one 10" subwoofer (JL 10tw3-d4) in my 2015 Nissan Frontier. I am trying to be somewhat budget friendly between $700-900, but I still want to get a good quality system for all types of music. My main concern is whether the 5 channel amplifier I picked out (Pioneer GM-D9605) will power the whole system properly for casual listening. Also, is it okay to mix and match the brands of each component the way I have? Any help and advice would be greatly appreciated!

  • Buck Pomerantz from Crutchfield

    Posted on 3/1/2017

    Sal, If playing 1000 watts RMS through two 400 watts RMS rated subs isn't loud enough for you, you can replace the amp with a more powerful amp and replace the subs with subs that can take that larger amount of power. Give us a call, and an Advisor will help you choose the right gear.

  • Sal from Chicago

    Posted on 2/27/2017

    I have two 12in subs wired to 2 ohm with an rms of 400 watts each. I have an amp that's putting out 1000 watts rms but I'd like to know if I can go higher.

  • Buck Pomerantz from Crutchfield

    Posted on 1/31/2017

    M, If you plan on those rear subs being Kicker CWRT81s, then they will together want an amplifier that can send them around 600 watts RMS at 1- or 4-ohms, while your front subs will work best with about 300 watts RM\S at 2-ohms. The only amp I know of that can do both (approximately) is a Helix Competition A2, which could send 270 watts RMS to the front subs and 395 watts RMS to the rears. A less expensive solution would be to get a couple of Rockford Fosgate P500X1bd mono subwoofer amps.

  • MPH from Beaverton

    Posted on 1/30/2017

    Hello Buck, I have a '08 Touareg w/Dynaudio. I bought 2 Kicker 6.75" subs 40cwrt672 150 rms 300peak to put in front doors and am looking at the same style kickers in the 8" subs for rear doors. I like that they have shallow mounting depths for the doors as I do not want a subwoofer in the trunk. I would like to keep the stock amp to power everything but these Kickers. Any recommendations on Amps or problems I may encounter doing this? 4 channel the best way to go? I need some bass in my life.

  • Buck Pomerantz from Crutchfield

    Posted on 1/29/2017

    Riley, A typical factory receiver puts out a total of about 10 watts RMS per channel, and a typical aftermarket receiver puts out about 20 watts per channel, in spite of all their published ratings (which are useless peak ratings). You don't absolutely need an amplifier for your speakers, but I'm willing to bet they'll sound a lot better with an amp running them. Maybe a compact power pack like a Clarion XC1410 will work for you.

  • Riley from Jerome

    Posted on 1/28/2017

    I just upgraded my speakers. I bought 2 Kenwood 3 ways with 80 watt RMS and 360 watt max. I'm also running 2 Kenwood components with 80 watt RMS and 280 watt max. My deck puts out 80 watts x4. Do I need an amp, and if so how big?

  • Buck Pomerantz from Crutchfield

    Posted on 12/28/2016

    Joan, For speakers with those kinds of specs, almost any 4-channel amp will do. If you like it loud, check out Pioneer's GM-D8604. It'll send those speakers up to 100 watts RMS each.

  • Joan

    Posted on 12/27/2016

    I bought two set of kicker speakers. One 6 1-2 100 RMS 300 Peak Power and the other 6x9 150 RMS 450 Peak Power. What RMS per channel 4 channel amp should I buy that would power both set of speakers Efficiently

  • Alex from Charlotte

    Posted on 12/12/2016

    Thank you for giving me this link. It helped tremendously. I know exactly what I need to do now. Thanks again, Alex

  • Buck Pomerantz from Crutchfield

    Posted on 12/12/2016

    Alex, Crutchfield has a vehicle profile of your Jeep that offers many suggestions on how to improve the sound. After reading about all the possible solutions, give us a call and talk to an Advisor about what would work best for you.

  • Alex from Charlotte

    Posted on 12/11/2016

    I have a 2000 Jeep Wrangler with a 200 watt Hi Fidelity Ultimate 6-Speaker Overhead Soundbar and two front 4" by 6" kickers and it sounds horrible. All the sound becomes distorted when ever the base comes in even though the sound bar is disingenuous to distribute the sound evenly. When there's little to no base it sounds great. I think putting in a sub and an amplifier will solve the problem but as I'm researching I have become thoroughly confused on what to buy. Could you shed some light on what will work with my current sound system and make it actually sound good?

  • Buck Pomerantz from Crutchfield

    Posted on 12/5/2016

    Ur, When you physically separate the highs, mid-range, and mid-bass drivers, it stretches the sound field between them and ends up with a smeared image and soundstage. You'll get a more coherent sound using four full-range coaxial-type speakers and a sub. But if you still want to go active and power a 3-way system (actually 4-way with sub) with separate amplifiers, you'll need to use the tweeter and speaker specs to get a ballpark estimate on how large an amp to use for each. Then, you'd use crossover settings and amp gains to smooth the response over the whole sonic spectrum.

  • Buck Pomerantz from Crutchfield

    Posted on 12/5/2016

    Alperen, You can use RCA cables to connect that receiver to that amplifier. Set the preamp output of the receiver to "subwoofer" in its menu.

  • UrKungFuNoGood from Roseville

    Posted on 12/4/2016

    I have a 1998 Jeep Grand Cherokee Lmtd ZJ with a ten speaker 180 watt Infinity system. There are speakers in the dash corners, both front and rear doors, and a sound bar on the roof near the lift gate with 2 speakers each side left and right. I have two ideas floating around to replace the factory system. get a four channel amp and add four 3-way door speakers and a sub or the more difficult part which is why I'm writing: Place woofers in the back doors, mid-range in the front doors and swap out the dash tweeters and add a sub. (both sub options will be a compact sealed enclosure to go under rear passenger seat). But with the second option I'm not sure how to plan the amplification side. It doesn't need to be ear splitting loud, but I do like to have it loud often. As I understand you need different power levels for 3-way systems? Like the tweeters don't need as much as the mids, the mids don't need as much as the bass and the bass don't need as much as the sub? What RMS ratings would you recommend for each setup? I am going to remove and sell the rear sound bar in both setups as I don't need it.

  • Alperen from sarajevo

    Posted on 12/4/2016

    Hello, I have JBL GTO 1260br and i am thinking of buying this Alpine MRP-M500 . My radio is not so good ( Kenwood KMM-257 ). Can I run these troublefree or do I need anything like harness? I read somewhere that this amp needs harness. Can this amp work for this setup? I will be waiting for your reply. Thanks. [Link to KMM-257 removed]

  • Buck Pomerantz from Crutchfield

    Posted on 12/2/2016

    Jesus, Your mono, 1-channel amplifier has two speaker output terminals that are wired together inside the amp. The second speaker output terminal is there for convenience and if you hook a speaker to each terminal it would result in the two speakers being wired in parallel, cutting the total impedance the amplifier sees in half. In your case, just wire one plus and one minus terminal to your sub, it won't matter which.

  • Jesus from Juarez

    Posted on 12/1/2016

    Hey buck the kenwood kac-6014d, i see two channels on it but it says its a mono amp and it dosent indicate which chanels you use to brigde, can you tell me which channel or which ports i need to use?

  • Buck Pomerantz from Crutchfield

    Posted on 10/31/2016

    Mike, Kicker makes two versions of their CompR subs: 2-ohm and 4-ohm. If you have the 2-ohm version, one of them could get powered by that amp's subwoofer channel (300 watts RMS at 2 ohms). However, two 500 watts RMS rated subs, 1000 watts total, will sound much better with a more powerful amp driving them.

  • Mike from Auburn

    Posted on 10/30/2016

    I'm going to be running 2 12 inch Kicker compR subs, 2 rear door kicker 6.5 speakers and 2 front door Kicker 6.5 with tweeters and a pioneer avh-4200nex head unit. I currently have a Kicker 800w 5 channel amp. Would that amp be enough for what I want to run?

  • Buck Pomerantz from Crutchfield

    Posted on 10/21/2016

    Will, Those aftermarket speakers will sound better amplified than not, and the sub needs an amp to play. A great way to take care of both would be with a 5-channel amplifier, like the Soundstream Picasso Nano PN5.640D.

  • Will Ballard from Houston

    Posted on 10/20/2016

    Hello, I have a 2007 Ford Taurus SE with 4 Infinity Kappa 682.11cf speaker in it along with the Soundstream SDR-342B which I plan to change out for the Pioneer DEH-X6900BT. I want to purchase an amp for my Rockford fosgate Punch P1S4-10 subwoofer. I'm pretty new to the whole car sound system thing and I am wondering if I need to get an amp to power just my sub or one that could do my subs and speakers? Also, what am would be recommend? price isn't too big of an issue, but I'd like to keep it on the low side.

  • Buck Pomerantz from Crutchfield

    Posted on 9/12/2016

    Ashlee, It looks like that gear matches well together and if it sounds good to you that's all that counts.

  • Ashleeeeee from Adelaide

    Posted on 9/11/2016

    Hi, I have a MB Quart DSC 1000.1 running at 1 ohm: 1000 watts x 1 chan. Powering a alpine type R 12D2. - 1 ohm. Also have a 480w pioneer 4 channel amp (GM-A4604) powering 4 x 80w rms Alpine type S speakers - 4 ohm. Is that okay!?

  • Buck Pomerantz from Crutchfield

    Posted on 9/7/2016

    Oscar, Amplifiers turn themselves off for protection against low voltage and low impedance loads. Not knowing exactly what gear you have or how it's wired make it impossible to give troubleshooting advice. If you bought your gear from Crutchfield, you could call Tech Support for free help troubleshooting your system. Their toll-free number is on your invoice. If you purchased your equipment elsewhere, you can still get expert Crutchfield Tech Support - 90 days-worth for only $30. Click on this link for details.

  • Oscar from San Antonio

    Posted on 9/7/2016

    My amp keeps shutting off, jl audio 500v2 I have an pioneer head unit, some aftermarket speakers, I believe a 10in sub the previous owner installed. The amp is powering 2 12 inch subs at 400rms each, I know the amp shuts off when there is less than 10v but are the subs too big or is the amp not getting enough power?

  • Buck Pomerantz from Crutchfield

    Posted on 8/29/2016

    Kenneth, Those speakers don't absolutely need an amplifier to work properly, but will sound better when amplified. And if you want bass in your sound, you'll do better by adding a subwoofer to your system than by turning up the bass volume.

  • kenneth

    Posted on 8/27/2016

    hi I have a Sony head unit Model # CDX-GT510 and bought 300W kicker CS65 if I install 4 speakers will I need to add an amplifier to achieve standard sound from the speakers? the specs on the head unit says 23.2W per channel @ 4 ohms and my speakers have 100 RMS and 300 peak power. I tried testing the sound quality and the bass sounds like its distorted/weak when I turn to a higher volume..

  • Buck Pomerantz from Crutchfield

    Posted on 8/17/2016

    Glenn, A signal clips when a receiver's output stage is over-driven, or when an amplifier's input stage is over-driven, and has very little to do with the absolute wattage involved. You can easily blow 55-watt rated speakers with clipped 75-watt signals. You should never use an amp gain to increase volume, it should be set so no clipping can ever occur. If your system isn't loud enough for you, get a more powerful amp and speakers. The PBR300X4 isn't bridgeable, so you're wasting two of its channels anyway, driving only two speakers with a 4-channel amp.

  • Glenn Sieja from Fisherville

    Posted on 8/17/2016

    Buck, I have a rockford pbr300x4 running 2 Alpine SPS- 510 (55 Watt, 87dB, 5.25") speakers in a motorcycle fairing. The sound quality is ok but I don't get enough volume on teh highway. If I turn the gain up, the speakers clip. That doesn't make sense to me because at 75W RMS per channel from the amp, the 55 Watt speakers should be fine right?? Are the speakers good for this amp? If not how do I spec upgrades in terms of power and sensitivity. Thanks!

  • Buck Pomerantz from Crutchfield

    Posted on 7/25/2016

    Lokesh, That power specification is a peak wattage rating that is basically meaningless for planning a system. Sony receivers typically put out a maximum of about 17 watts RMS. Any aftermarket speaker will work with that receiver, although speakers with lower ratings will work better than those rated higher.

  • Lokesh Raj from Kanchipuram

    Posted on 7/25/2016

    I bought a sony cdx 1150u system for my sedan model car, it say on paper that it has a 55w x 4 channel output i am confused in buying the correct rated speakers. What power rating should i choose for buying the speakers.

  • Buck Pomerantz from Crutchfield

    Posted on 7/22/2016

    Howard, Try reversing the polarity of one of the speaker wire input connections. It sounds like whenever the two channels play identical signals, they cancel each other out due to a phase difference.

  • howard from Ferndale

    Posted on 7/21/2016

    I recently purchased a Kenwood KAC-9106D mono amp and 2 Rockford Fosgate dual 2ohm 12s, When connecting the amp I used the speaker level connections, from the left back speaker, and right back speaker. When I tested out the sound I was disappointed it played but wasn't very loud, until I messed with the balance, 1 tick to the right speaker and the bass was insane, or 1 tick towards the left speaker and the bass was insane, but with the head unit balanced in the center, I get not much. Should I have only used 1 pair of inline connections, not left and right?

  • Buck Pomerantz from Crutchfield

    Posted on 7/20/2016

    Akasha, The specifications for your speakers tell you that the manufacturer recommends no less than 20 watts RMS and no more than 500 watts RMS for the speakers to play well and sound good. The power amp you choose should depend on how loud you want your sound to be. If you want the speakers to play at their loudest, you'd aim for that 375 to 750 watts RMS per channel amp. Rockford Fosgate's P1000X2 is an excellent example of an amp that'll work well for this application, producing around 400 watts RMS per channel at 3 ohms.

  • Akasha from Aurora

    Posted on 7/20/2016

    The owners manual for my 3 way component speakers gives a rather vague numerical value for their power handling. 20W-500W RMS /Per Channel, with a nominal impedance of 3Ohms. If I go by the numbers used in this article, I would need ~375W-750W per channel. :-0 Are there amplifiers in production today that could provide that kind of power and still retain a certain value of quality dynamics?

  • Buck Pomerantz from Crutchfield

    Posted on 7/11/2016

    Ivan, That spec means that you have a two-channel amplifier, with each channel capable of driving a 4-ohm load with up to 170 watts RMS of power. The amp probably has a larger total output, driving two 2-ohm loads or a 4-ohm load when bridged for instance, but without knowing the make and model number of the amp, I can't say what.

  • Buck Pomerantz from Crutchfield

    Posted on 7/11/2016

    Patric, Not knowing exactly what amplifier or subwoofer you have make it impossible to give advice on your system. If you want a question answered, you must identify your equipment by brand names and model numbers. I would assume that if your sub and amp came together they match for power handling and impedance capability, and another amp probably would not.

  • Ivanuclear from Garden Grove

    Posted on 7/11/2016

    Hello was wondering if i can get helped for this. I have an amp that says that at 4 ohms it produces 170watt rms x 2 does that mean it is 170 watt rms or 340 watt rms thanks

  • Patric from Honolulu

    Posted on 7/9/2016

    I want to replace my current amp with a bigger better one. The sub and amp I have now came together. It's a 8" sub bass tube and a 60 watt amplifier mounted on the sub. So if I want to change amps but keep the same sub, and I already have my whole car wired. Do I basically just disconnect the old amp and connect my new one?

  • Buck Pomerantz from Crutchfield

    Posted on 6/21/2016

    Ron, Some 5-channel amps, like the Rockford Fosgate R600X5, have an input selection switch, so you can get five outputs (fronts, rears, and sub) using just two or four inputs.

  • Ron from Dallas

    Posted on 6/20/2016

    Have a 4 Channel stereo need a amp with with a added sub output (just small bass) will a 5 Channel amp power a sub with only front and rear rca`s from deck ???

  • Buck Pomerantz from Crutchfield

    Posted on 5/12/2016

    Isaac, I seriously doubt you will be able to hear any differences between two different brand amplifiers of the same wattage, especially in a car. Again, adjusting your receiver and amplifier's gain, and tone controls and filters will do more to improve the quality of your sound than replacing an amp. Unless it sounds bad due to damage.

  • Issac Lopez from Northglenn

    Posted on 5/10/2016

    Will a Alpine PDX at 100rms 2 ohm to infinity kappa components sound better than a cheap rockford amp at 100rms 2ohm. I currently have a cheap rockford amp to my speakers not really happy how they sound, is a better quality amp and maybe more power going to help with sql.

  • Anthony from San Diego

    Posted on 5/3/2016

    For clarification I plan on putting 2 12' subwoofers in the car, and i know i need a deck as well.

  • Anthony from San Diego

    Posted on 5/3/2016

    Buck, I have a 2001 Toyota 4runner that currently still has stock everything. More than anything else I want to hear the bass in my music as this model was before Toyota put stock subs in 4runners. This car has 2 front tweeters, 2 front door speakers and 2 rear door speakers. I'm a little confused on the specs of the of amp I need (how many channels, and wattage/voltage i will need to make my speakers, tweeters, and the two sub woofers i want to add work? Any help?

  • Buck Pomerantz from Crutchfield

    Posted on 4/28/2016

    Kathryn, That amplifier should work fine for those speakers. I think you've been confused by the Pioneer receiver's claim of a 50-watt output. That's a peak specification, which is useless for system-planning - always use RMS ratings only. That receiver's built-in amp can put out 14 watts RMS per channel. The Alpine power pack more than triples that, and should have plenty enough power to drive your speakers. Again, it seems to me that you need to get your installer to correct a faulty installation. His mention of the radiator affecting the audio should send up a huge red flag that something's not right.

  • Kathryn from Seattle, WA

    Posted on 4/27/2016

    Buck, thanks for the answer. More importantly, I was hoping to get some insights on whether the amp is the right one to use with the speakers per the specs I provided? If not, which amp would you recommend that you carry?

  • Buck Pomerantz from Crutchfield

    Posted on 4/27/2016

    Kathryn, It sounds to me that either you're misunderstanding what your installer said or he's doing you a great disservice by not correcting a poorly-executed installation. That power pack should not make any noise - if it does, the installer needs to correct that situation without bringing up nonsense about the car's radiator. That has absolutely nothing to do with the audio system.

  • Kathryn from Seattle

    Posted on 4/27/2016

    I recently upgraded the factory speakers and HU of my 2012 Forester with mixed results, and I'm looking for some advice, please. I have the Pioneer AVH-X5800BHS HU (built-in amp of 50W x 4), combined with JBL 6.5" Component speakers (Front: 70W RMS, 2.3 ohms - Rear: 60W RMS, 2.3 ohms). I love loud, well-defined sound with good bass, so to add a little kick the sales rep recommended the Alpine KTP-445U Power Pack (up to 45W RMS @ 4 or 2 ohms ). The end result is very disappointing (except the HU). First off, there's HUGE white noise. The installer said it's normal with the Alpine Power Pack, and the only way to get rid of it is to replace my radiator (???) - it seems like a grounding issue. Speakers have no power at all - I can't get past volume like 10 or so out of 30 before distorting the sound. I have good highs, but very poor mid, lows and bass. The speakers sound "boxy." I have a feeling the Power Pack is what's causing the issue here. From what I read above, it sounds like it's not powerful enough to power my 60W/70W speakers, and the 45W Power Pack may actually be weaker than the HU 50W power? What about the white noise, is he right about that, that it's normal? I mean it's loud, I can't imagine anyone would deal with it. How do I correct this install? And what would be a more appropriate Amp if I wanted to give the sound a boost to be able to take full advantage of the speaker power, assuming the HU doesn't have power enough on its own for the speakers? Thank you!!!

  • Buck Pomerantz from Crutchfield

    Posted on 4/15/2016

    Jonah, Your plans for improving your audio system sound okay to me, especially if your car's factory amplifier drives your new speakers with enough volume for your taste. Adding another amp of the size you indicate shouldn't cause issues with the charging system, just make sure you use large enough power and ground wires that are securely connected. (The guy who thought 70 watts per channel wouldn't be enough power in a VW Beetle was probably all ready to sell you a larger amp - four channels of 70 watts plus a 500 watt sub ought to get plenty loud in your car.)

  • Jonah from Evansdale

    Posted on 4/14/2016

    I have a 2002 beetle gls with the monsoon system (Btw the oem rear speakers ARE NOT 4 ohms when i pulled them out to replace them they were infact 2 ohms according to the sticker on the speaker) The speakers i have installed in the front door and rear are 4 ohms the lowest one in power handling is the front speakers 40 watts rms and the rear ones are 50 watts rms. My questions are 1. Can i leave the factory amp to power the ones in the dash and piller and have another amp power the rear and front speakers im looking at one thats 70 watts rms 4 ohms 4 channel (Don't worry i wont let the amp blow my speakers lol) 2. Then i plan to add another amp power a subwoofer that will use the preamp output on the 4 channal amp for signal Im looking at a 500 watt one at 2 ohms and i am curious if this is possibly without overloading the battary/alternator. Also some dude who works in the car audio kind said only 70 watts? like that was a bad thing for a compact car? the factory amp only outputs 25 watts per channel and its loud enough anyway is this possible

  • Buck Pomerantz from Crutchfield

    Posted on 4/7/2016

    Brad, I've forwarded your questions to Crutchfield's Sales Advisor Team, and a member will get in touch with you by email to offer suggestions and help you choose the right gear for you and your vehicle. For immediate help, you can contact them via phone or chat - just click on the phone icon at the very top of this page.

  • brad from Abbott, tx

    Posted on 4/6/2016

    I have a 2009 single cab Chevrolet work truck we have updated the receiver with Sony XAV-68BT A/V Receiver with Bluetooth, with JL Audio Evolution C2-650 6.5" Component Speaker System in the doors and Infinity Kappa 462.11cfp 4x6" Coaxial Speaker Pair in the rear, I would like to add a sub and an amp, but not sure the best way to configure. Would a 5 channel amp be best or possible a powered sub and a 2 or 3 channel amp for other speakers, the sound is very hollow now no bass at all and there is a lot of road noise in the truck partly because it has plastic flooring and door panels, would it be worth the money to add dynamat in the doors, floor and behind the seat,or possibly just dynamat the speakers thanks, Brad

  • Nick

    Posted on 4/3/2016

    Hi. I'm currently on the market for an amplifier with good quality as well as decent to good power. I really want to turn up my music loud with no distortion and maintain the mid-bass from the speakers. I have an aftermarket in-dash deck (Pioneer x3700bhs) and a pair of Infinity Reference 6502ix speakers that are each RMS 60 watts on the rear deck, factory doors in the front, and alpine tweeters with a crossover in the dash. I eventually will get component speakers in the front if I can find a pair that produces really good mid-bass like my factory speakers. I'm looking at the Alpine MRV-F300 and Rockford Fosgate R400-4D amplifiers. Which one would overall suit my needs? Any other suggestions pertaining getting different speakers, component speakers and other amplifiers is fine. Thanks.

  • Alex from Woodbridge

    Posted on 3/26/2016

    Hello, I have a Pioneer sub TS-W301R 12. What kind of amp would I need? Or would be best?

  • Chad from Mooresboro

    Posted on 3/26/2016

    Thank you Buck. Then what would you suggest I use with this particular amp?

  • Buck Pomerantz from Crutchfield

    Posted on 3/21/2016

    Chad, I know of no safe way to connect three SVC 4-ohm speakers to a 2-channel amplifier that's only stable down to 4 ohms when bridged. Sorry.

  • Chad from Mooresboro

    Posted on 3/20/2016

    Hello, I have a "Power Acoustik" 800/2 Amp. Full Mosfet,Bridgeable,Crossover, HPF/LPF,2 ohm Stable. 800 watt. It's an older amp but still works as it should. I have a Crew Cab Silverado truck with limited space under my rear seat. This amp used to push a 12" sub that I can't use now. From what I've researched,this amp can push three speakers. With limited space I am considering three 6x9 speakers to place under the rear seat in addition to the factory system I already have. Could you please suggest a configuration that would offer a quality sound with a nice bass to compliment. Thank you in advance for your input.

  • Buck Pomerantz from Crutchfield

    Posted on 3/14/2016

    Chris, You'll be fine sending those speakers 65 watts RMS. All that 150 watts RMS speaker spec tells us is that you shouldn't try and send the speaker much over 150 watts or it may get damaged. Low power doesn't hurt a speaker.

  • Chris Ramirez from Los angeles

    Posted on 3/13/2016

    Lets sayy I have kicker ks and 150 rms each speaker but my aml channels only give out 65 per channel will if be fine or i get a differenf amp that gives 100 rms per channel is that fine for my speaker and amp and sounds?

  • derrik from west liberty

    Posted on 2/29/2016

    I have a 14' civic si sedan w/navi. I was wanting to get some bass in there and was wondering what would be best and if i could keep my stock radio in there seeing how i have the navi?

  • Buck Pomerantz from Crutchfield

    Posted on 2/24/2016

    John, It sounds like you should call us (toll-free number at the top of this page) and talk to a Crutchfield Advisor in order to pick out the right gear for yourself and your particular application and vehicle. And help you choose a subwoofer as well. If you're unfamiliar with the products it really helps to talk to someone who is and who will make sure you get the gear that will fit in your car as well as satisfy your audio needs and make you happy.

  • john farley from Dunlap

    Posted on 2/23/2016

    I was wondering if BOSS AUDIO BR1000 Marine Weather Proof 1000-Watt Full Range, Class A/B 2-8 Ohm Stable 4 Channel Amplifier with Remote Subwoofer Level Control would be good for 4) New Kicker 41DSC6934 D-Series 6x9" 720 Watt 3-Way Car Audio Coaxial Speakers.and do I need another amp to run 2 6.75 subs or a 8 inch sub

  • Buck Pomerantz from Crutchfield

    Posted on 2/19/2016

    Samuel, Your component speakers will probably sound better with the stronger of those amplifiers.

  • Samuel

    Posted on 2/19/2016

    Hello there, I have component speakers morel maximo. It is rated 90watt RMS. Which is better between amp with 66 watss RMS per channel or 80 watts per channel (4 Ohm)?

  • Buck Pomerantz from Crutchfield

    Posted on 2/15/2016

    Jerry, Without knowing what amplifier you have, I can't tell if you can safely use it with your collection of speakers or not. A 4-channel amplifier with 50 watts RMS per channel output would probably work, with each channel driving a full-range speaker and the tweeters wired in parallel with whichever of those are the front speakers. Amplifiers with higher output ratings would probably end up damaging your speakers.

  • Jerry from East Wenatchee

    Posted on 2/14/2016

    Can I run 2 Lightning Audio LT 1/2" Mylar balanced dome tweeters, 2 MTX Terminator522 Terminator Series 5-1/4" 2-way car speakers and 2 MTX Terminator653 Terminator Series 6-1/2" 3-way car speakers off a 4 Chanel amp

  • David farer from Margate

    Posted on 2/11/2016

    I have a 15 ram 1500 cc. The box that fits under the back seat only has .65 cu ft of a/s. The app I have is a powerbass Asa3 1000rms.X1@1ohm,700@2 & 400@4. What would be the best speakers between (from my calculations,which could be wrong)350 & 550rms that will give me the deep,clean bass I'm looking for with such a small amount of a/s? I've tried the cvt but it sounded bad. Is this because the minimum a/s for the cat is 1 cu ft and only has .65 before dropping the speaker in?

  • Buck Pomerantz from Crutchfield

    Posted on 2/8/2016

    Chris, If each of your speakers has a rating of 115 watts RMS (not peak) you'd figure the smallest power requirement as 75% of 115 for 86.25 watts RMS, and the highest as 150% of 115 for 172.5 watts RMS. What this means is that for best performance, these speakers could use an amplifier with between 86 and 173 watts RMS output per channel. But this is just a guideline for not over-powering your speakers - any amp under 175 watts RMS per channel will work fine.

  • Chris from plymouth

    Posted on 2/8/2016

    hi there, slightly comfused to say the least, i have a two pairs of speakers that have a rating of 115w/speaker. i am going to use a 4 channel amp so i can wire a pair in the front doors and apair in the rear. what size amp do i need? i have come up with the figures, 115w x 0.75 = 86.25 86.25 x 1.5 = 130w does this mean i need an amp with 4x 130w? cheers

  • Buck Pomerantz from Crutchfield

    Posted on 2/8/2016

    Ambrosia, If you had purchased your gear from Crutchfield, you would have been advised what amp kit to get before completing the sale. That amp's specs call for a 4-gauge amp kit.

  • ambrosia from lakeland

    Posted on 2/6/2016

    I have KICKER C15 15" 1200W Dual 4-Ohm Subwoofers Vented Sub Box , BOSS PV3700 Phantom 3700-W Class A/B 2-8 Ohm Stable 5 Channel Amp and Kenwood Digital Media Receiver with Built-in Bluetooth. For a 2006 cobalt lt (no steering wheel controls) what amp,subwoofer wiring kits would you recommend?

  • Buck Pomerantz from Crutchfield

    Posted on 2/1/2016

    Mike, Either amp will probably work fine - it really depends on how loud you want to play your music. Whichever amp you get will have to have its gain set properly to not allow distortion, so even that higher-powered amp will be okay to use.

  • Buck Pomerantz from Crutchfield

    Posted on 2/1/2016

    David, I've forwarded your questions to Crutchfield's Sales Advisor Team, and a member will get in touch with you by email to offer suggestions and help you choose the right gear for you and your vehicle. For immediate help, you can contact them via phone or chat.

  • Mike from Aurora

    Posted on 1/30/2016

    I have chosen 2 front 80 watt RMS 4 ohm speakers. I possibly will be adding rear speakers (same RMS) at a later time. Would a 4 channel amp supplying 75 watt RMS @ 4 ohm per channel be sufficient? My other 4 ch amp choice would be a 150 watt RMS @ 4 ohm per channel, is this too much? Basically comes down to price, the setup will be on a motorcycle as well. Thanks.

  • David farer from Margate

    Posted on 1/30/2016

    I'm upgrading my speakers in my 15 Ram 1500 crew cab. Can you help me figure out what I need? I'd like to keep my stock (non alpine) stereo and add an app or two and two subs. I've already replaced the dash speakers with... kicker Dsc35 (80w/20rms) And the rear doors with.... Kicker Dsc693 (360w/90rms) And going to replace front doors with kicker ds65. What size kicker amps and subs would I need for a nice clean sound with hard deep bass? Would you also know the wire harness that I need to hook an app or two to the factory head unit? Thanks.

  • Miranda from Tucumcari

    Posted on 1/27/2016

    Hello. I have two JL Audio 12" subs (W0v3) in my 2007 Ford F150 single cab. I have a Pioneer amp that says 1000 Watts. I'm really looking into getting a better amp from JL Audio. Which one would you recommend? Thank you.

  • Buck Pomerantz from Crutchfield

    Posted on 1/25/2016

    Nasir, Sorry, I can find out nothing about those amplifies, and I won't recommend any amplifier I'm unfamiliar with which Crutchfield doesn't carry.

  • Buck Pomerantz from Crutchfield

    Posted on 1/25/2016

    Jesus, You certainly could use a 4-channel amplifier to drive your rear speakers with two channels and the front speakers and tweeters wired in parallel to the other channels. Especially if you don't try to send them crazy amounts of power. Those tweeters are only rated for 45 watts RMS. You could also do the same with a 5-channel amp, using the 5th channel for your subs.

  • Nasir Malik

    Posted on 1/24/2016

    I have Rockford Fostgate T1693 coaxial for rear and Polk Audio DB 6501 components at front in my corolla 2013. I I want to Install Memphis MR 480.4 amp or cerwin wega v 6000.4. Is that sounds OK ? Please suggest which amp is better between these two.

  • Jesus from Elgin

    Posted on 1/24/2016

    I have one pair of Infinity REF-075TX 3/4 Inch Textile Dome Tweeters. In the front doors JBL GTO628 6.5-Inch 2-Way Loudspeaker and in the rear a pair of JBL GTO928 6-Inch x 9-Inch 2-Way Loudspeaker. Will a 4 ch amp be enough power. Havent installed the speakers yet need to know asap. I already have 2 ch amp kenwood 1000W powering 2 12in Kenwood Kfc-w3013ps 12" 4 Ohm Performance Series Car Subwoofer with 2400 Watt Peak / 800 Watt RMS. Not really sure how to run two amp on one car would 5 or 6 ch amp be my best shot?

  • Brandon Bland from Independence

    Posted on 12/9/2015

    I have a 97 civic sedan. I just want two twelve inch subs. What amp and speaker combo would be good for at least 1000 watts. I also want an amp on my 6.5 and 6x9 inch speakers

  • anthony santos from myrtle beach

    Posted on 11/30/2015

    I have (2) 250watt audiopipe Mid Frequency Car Loud Speakers along with a random 1000 watt subwoofer what kind of amp should I run with them

  • Alexander Hrabe from Crutchfield

    Posted on 11/30/2015

    Graham, you certainly can just add a monoblock amp to power the sub. If you need any recommendations, just give us a call, and take a look at this article about pairing amps and subs.

  • Brandon from Ashland, KY

    Posted on 11/30/2015

    I have a Wet Sounds Ultra 10 Speaker Bar and a Wet Sounds SS65 Sub. I need a cost effective waterproof amp for the sub. It is 4 ohm impedance, 250 RMS, 500 Max. What are my options? Thank you.

  • graham weis from boise

    Posted on 11/27/2015

    Alright so im entirely new to this whole subwoofer installation process and before I but my own I was wondering what channel amp I would need for my car. I have a 2002 jeep liberty with an aftermarket radio and 4 kicker speakers that replaced the stock ones in the doors. Im interested in buying a 12' subwoofer for the back of the car, and need an amp for it. My question is do I need a 4 channel amp for each of the speakers plus the sub, or can I get a monoblock amplifier for the sub only since I've replaced the speakers/ radio? I would love to have some advice on this as I'm hoping to buy my subwoofer fairly soon. Thank you.

  • Buck Pomerantz from Crutchfield

    Posted on 11/23/2015

    Selrisitai, Speaker RMS power specifications (never use peak ratings) are there for you to use as a general guideline so you won't damage the speaker by sending it too much power. Your 150-watts RMS rated speaker will work best with an amp that can give it between 100 and 200 watts RMS, but you won't hurt it by giving it less.

  • Selrisitai from Livingston

    Posted on 11/22/2015

    I have 150 RMS, 300 watt peak power speakers. Would an amplifier with LESS than 150 RMS work, or does it have to be at least 150 RMS?

  • Buck Pomerantz from Crutchfield

    Posted on 11/17/2015

    Chandan, Unfortunately, we're only licensed to sell gear in the United States and Canada. I don't know what car stereo equipment or even what kind of vehicles are available in your country. An online search ought to bring up at least one car stereo dealership somewhere near you. Sorry I can't help.

  • Chandan from Mumbai

    Posted on 11/17/2015

    Hi. I have Blaupunkt Helsinki 220 Bt HU in my hatchback. Could you please suggest a compatible Amp and Speakers? Thanks.

  • Buck Pomerantz from Crutchfield

    Posted on 11/3/2015

    Brad, The Rockford Fosgate P3-2X12 is a dual enclosure loaded with two P3D4-12 DVC (dual voice coil) 4-ohm, 600 watts RMS rated, 12" component subwoofers, wired together for a total 1-ohm impedance and 1200 watts RMS rating. Two DVC 4-ohm subs can only get wired together to form a 1-ohm, a 4-ohm, or a 16-ohm load, so you can't rewire them to 2 ohms. That amplifier has a current-limiting feature that allows it to only output 800 watts RMS when wired to a 1-ohm load, a bit too little for that sub, but it'll work. Another amp to look at would be the Rockford Fosgate R1200-1D, which would be able to put out 1200 watts RMS to that subwoofer. However, if you actually were looking to power two P3-2X12s, then you'd need an amp at least twice as powerful as that.

  • Brad from Loveland

    Posted on 11/3/2015

    I'm Looking t upgrade my system. Im thinking the Alpine MRX-M110 amp with two Rockford Fosgate P3-2X12. I can wire each individual sub to one ohm, will i be able to wire them into series as well to get up to the two ohms that the amp is rated for for 1100watts. Do you think that is going to be enough power for the two 600rms subs?

  • Buck Pomerantz from Crutchfield

    Posted on 10/12/2015

    Boogy512, You can certainly replace your speakers without adding an amplifier - your car's Boston Acoustics system already includes a 6-channel amplifier. You can further improve the sound later by adding a stronger amp. I suggest leaving your dash 3.5" speakers run by the factory amp and getting a 4-channel amplifier with speaker-level inputs to run the other speakers. When you're ready for that upgrade, give us a call and one of our Advisors will help you get the right amp for you and your car.

  • Boogy512 from Austin

    Posted on 10/12/2015

    I want to replace the factory speakers in my 2012 Chrysler 200 sedan (with Boston Acoustic Speakers) with JBL GX series speakers. Do I need an amp? What type of amp should I get?

  • Buck Pomerantz from Crutchfield

    Posted on 9/2/2015

    Loupua, A great way to improve the sound in your ride is to add a powered subwoofer that has speaker-level inputs. That way, you can get the sub's input signal from the rear speaker wires and won't need an aftermarket receiver to get your bass.

  • Loupua from lahaina

    Posted on 9/1/2015

    I have a 2015 Nissan Frontier. Do I have to change my radeo to a deck in order to hook up a subwoofer? Or can I just leave it as it is because it sounds really great

  • Buck Pomerantz from Crutchfield

    Posted on 8/28/2015

    Partha, That amplifier's 60 watts RMS per channel should work fine in your vehicle with those speakers.

  • Partha sarma from Hyderabad

    Posted on 8/27/2015

    HI,I am planning to buy aftermarket speakers for my suzuki swift, India version. I am planning to get the JBL -GXA644SI amplifier and JBL GTO 950 SI in the rear tray and Infinity PR6500CS as the front door speakers. Can you please help me my telling whether the amp will be able to support the set up?

  • Buck Pomerantz from Crutchfield

    Posted on 8/24/2015

    Mervin, Crutchfield doesn't carry that brand of amplifier and I don't know of anyone who's tested one to see whether it made rated power or not.

  • Mervin from Trinidad

    Posted on 8/23/2015

    I interested in the orion hcca 2000 series amplifiers. The 2000.2 and 2000.4 a four and two channel amp. Please reccommend if these amps deliver what they promise and would you reccommend them or another brand.

  • Buck Pomerantz from Crutchfield

    Posted on 8/10/2015

    Bryan, When you plan a system, you need to use the RMS wattage ratings only, never peak ratings. It does seem like a 3000-watt amp should overpower two 1000-watts subs, but the first number is a peak rating and the second is an RMS spec. In reality, that 75 watts RMS per channel amplifier will severely under-power those 1000 watts RMS subs.

  • Buck Pomerantz from Crutchfield

    Posted on 8/10/2015

    Kyle, That amp should be fine with those speakers. If it proves to not play as loud as you want, you can always upgrade to a more powerful amplifier.

  • Buck Pomerantz from Crutchfield

    Posted on 8/10/2015

    Brian, Generally speaking, any aftermarket speaker will sound good when driven by a 40 to 50 watts RMS per channel amplifier. If you like your music loud, go with an amp that can put out 75 to 100 watts RMS per channel

  • Bryan from Somers

    Posted on 8/9/2015

    Hello, I'm planning on getting 2 alpine type r 12 inch subs @ 1000rms max each, now I'm looking at amps and I found a pyramid amp 2ch 1500wmax per ch. Now this amp is 500rms peak over the rated 1000 of the sub now I'm not sure if it is this amp is cea certified or not. Do you guys think this amp will be too much for those 2 subs?

  • Kyle Fulkerson

    Posted on 8/9/2015

    The Kenwood amp I'm looking at has 40w RMS per channel with 4 channels and then a fifth channel at 500w for a sub. I am not getting a sub yet so I'm assuming I disregard the fifth channel. The front and rear Kicker speakers I want are 75w Nominal and 100w nominal, respectively. Will this amp provide enough power for the four speakers? (All RMS ratings are for 4ohm)

  • Brian from United States

    Posted on 8/8/2015

    I got a Dual media marine head unit with two 6.5 speakers 240 watt system what size amp should i use

  • Buck Pomerantz from Crutchfield

    Posted on 8/6/2015

    Carl, A mono amplifier can run as many subwoofers as it has the power for. If you already have two subwoofers and want to get an amplifier for them, you must first identify each sub's coil configuration, impedance, and RMS power rating, before figuring out what amp can run them. And only after you install it will you know whether or not the bass you like will overpower the rest of your music.

  • carl from cincinnati

    Posted on 8/5/2015

    I was wondering i wanna buy a amp and subwoofer and I believe if im reading right that a mono amp would be best to power that subwoofer however i have two subwoofer speakers in one speaker box so would that mean i need a two channel amp to power both speakers? thats in the one box? and one more question i believe my regular car speakers are good since there bose so i wouldnt need them for bass since i got the sub woofers i could just use them for high frequencies sounds so basically they could just be hooked up to my receiver and they will be fine? and the reason why I ask that is because I want good hard hitting shake a building bass but I also wanna hear my music clearly through the bass I hope I explained my question im not the best writer thank you

  • Buck Pomerantz from Crutchfield

    Posted on 8/2/2015

    Mike, If you have minimal experience with car wiring, you should consider having a professional installer replace your BMW's factory amp with an aftermarket amp. There is no amplifier bypass harness available and seeing as the factory amplifier runs 10 speakers, you'll probably need multiple amps being fed from multiple outputs from the factory receiver.

  • Mike from Fairfax Station VA

    Posted on 8/1/2015

    I want to replace the amp on my 2001 BMW X5. Is this something a DIY guy can do with miminal wireing experience?

  • Buck Pomerantz from Crutchfield

    Posted on 7/27/2015

    Dustin, Check out this article to see how we made a boombox in a cooler. Your project should be very similar. You'll need to pick an amp that'll fit in your ammo can and fortunately for you Crutchfield has a good selection of compact 4-channel amplifiers to choose from.

  • Buck Pomerantz from Crutchfield

    Posted on 7/27/2015

    Robert, Although some manufacturers claim that their components work best with each other, I don't think there's any evidence for that, and mixing brands will be okay.

  • Dustin Berrong from Fort Walton Beach

    Posted on 7/26/2015

    I am trying to make an ammo can boombox, and am having a little trouble. What kind and size of amp should i run if i plan on using 4 6inch kicker speakers? i am using battery power if that matters.

  • robert L henry jr from lancaster

    Posted on 7/25/2015

    can you mix brands say i have pioneer everything but then use a boss amplifier or can that effect quility

  • Buck Pomerantz from Crutchfield

    Posted on 7/24/2015

    George, That amplifier is not too strong for your speakers. Almost every aftermarket speaker can take 50 watts RMS. You should never use peak specs - always use RMS numbers.

  • George Spotts from Jenkintown, PA

    Posted on 7/24/2015

    Hello. PLEASE HELP!!! I have 6.5" (180 watt peak) infinity reference speakers in my front doors and 6x9" (300 watt peak) infinity reference speakers in the rear deck. Would the Rockford Fosgate R400-4D (400 watt) amplifier be too big?? I don't want to damage my speakers. Should I have purchased a smaller amp? Thanks for your help.

  • Buck Pomerantz from Crutchfield

    Posted on 7/19/2015

    Zeyad, I was going to recommend the Rockford Fosgate T2500-1bdCP, but I see that you're not in the U.S. and I don't know what amps are available in your country. Crutchfield is only licensed to sell gear in the United States and Canada. Sorry

  • Zeyad from Middle East

    Posted on 7/18/2015

    Hello, I'm planning to buy two of P126DVC Phantom 12-inch 2300-watt subwoofer, and i don't know which amplifier should i buy for the subwoofers. Please help

  • Buck Pomerantz from Crutchfield

    Posted on 7/13/2015

    Carlos, Not knowing exactly what amplifier or subwoofers you have make it impossible to give advice on how to wire them together. Most people use their 4-channel amps to drive their four car speakers and get a separate subwoofer amp to run that.

  • Carlos Gonzales from Kenosha, Wi

    Posted on 7/11/2015

    I want to hook up a sub with 2 10in speakers and I have a 4 channel 400 watt amp,and my car has a 4 speaker system. What do I need to hook this up?

  • Buck Pomerantz from Crutchfield

    Posted on 7/11/2015

    Jose, If this is for a PA system, then a couple of Crown XTi 6002 power amplifiers will do nicely. Wire two speakers in parallel per channel. If it's for a car however, I don't know of any vehicle electrical system that could support such a high power requirement (over 700 amperes), even with extra batteries and high-current alternators.

  • Jose from Bradenton fl

    Posted on 7/10/2015

    I have some 12' prv midrange speakers they're 1000rms 2000max which amp would be best for them i have 8 of them

  • Buck Pomerantz from Crutchfield

    Posted on 6/22/2015

    Brandon, In my opinion, the simplest and most cost-effective way to add bass is to get a powered subwoofer with speaker-level inputs and just add it to an existing system. As for your other questions, I've forwarded your questions to Crutchfield's Sales Advisor Team, and a member will get in touch with you by email to offer suggestions and help you choose the right gear for you and your vehicle. For immediate help, you can contact them via phone or chat.

  • Buck Pomerantz from Crutchfield

    Posted on 6/15/2015

    Pete, I'm not sure exactly which amplifier you have, but if it's a Rockford Fosgate Punch P500-1bd, then it's capable of putting out 400 watts RMS to a 2-ohm load. That subwoofer is a DVC 1-ohm model that can only be wired as a ½-ohm or a 2-ohm load, and is rated for 800 watts RMS. The amp is not too powerful for that sub, in fact the opposite is true. I suspect what's happening to you is that you're under-powering the sub and driving the amp into clipping trying to get loud bass out of your system. That's what's blowing your subs, I think. A better amp to drive that sub would be the Rockford Fosgate Prime R1200-1D, which would deliver 800 watts RMS to the 800-watt rated sub when wired to 2 ohms.

  • Pete Martinez from Humble TX

    Posted on 6/14/2015

    hello I have a Kicker Comp shallow (Kicker 40CWRT121) mount speaker installed in my truck. I am using a Rockford Fosgate amp P500.1 which is a mono amp. I keep blowing my sub. This is the third sub I had to replace. I am wanting to know help on selecting a different amp. I know the amp I currently have installed is a little too much for this sub. Could I get what is best amp to help me push this subwoofer. Thanks in advance

  • Buck Pomerantz from Crutchfield

    Posted on 6/10/2015

    Eric, I see no reason why that amplifier won't work with those speakers, though it probably will overpower the factory subwoofer. Again, you will have a problem getting input to your new amp, unless you use a device like an AudioControl LC6i to lower the factory amplifier's output to line level for the new amp's input.

  • ErictheBear from Triangle VA

    Posted on 6/9/2015

    The JBL GTo329's are 5-25 rms 75 watt peak

  • BearmeatDC from Triangle VA

    Posted on 6/9/2015

    The factory amp does not filter the singles, in the original set up, the door speakers were low pass and the dash speakers high pass.

  • BearmeatDC from Triangle, VA

    Posted on 6/9/2015

    I had the amp questions last evening. The speakers are now (4) JBL 963's at 2-100 rms 300 peak, (2) JBL GTO 329's, and planning on a JVC KS-AX3205 amp that provides 50 watts/4 ohm or 65 watts/2 ohm per channel and 300 watts at 2 ohms for the sub. The sub specks are unavailable. If it blows I can replace. Actually I would be ok running it off the factory amp if this is a big issue. I just thought with two amps, every speaker would have a channel. The factory amp is 368 watts total, which drove all six speakers and the sub in the original configuration. So knowing this are my ideas for two amps, at 2 ohms crazy? The new amp has high level inputs so I had thought if the out puts for the four door speakers from the factory amp went to the new one, and the dash speakers ran off the factory amp - all would have a channel. As for the sub in my plan it could move to the new amp or stay with the old one.

  • Buck Pomerantz from Crutchfield

    Posted on 6/9/2015

    Eric, Without knowing the power ratings of your aftermarket speakers, amp, and sub, I have no way of knowing whether or not they'd work together. Identifying the gear by brand names and model numbers helps. Perhaps those installers didn't want to put in a mismatched amplifier that could possibly blow your speakers. Your premium audio system's amplifier would normally get bypassed with a harness when installing an aftermarket amp - but I don't think there is one for your vehicle. This makes connecting your 5-channel amp's inputs a bit problematical, but a line output converter (LOC) that can handle high-level inputs should solve that.

  • Ericthebear from Triangle, Va

    Posted on 6/8/2015

    I have an upgraded factory audio system. It has a factory amp under the passenger seat. I have two 3.5" speakers in the dash, a 6x9 speaker in each door (4 total) and a subwoofer. I want to add a new five channel amp to drive the door speakers and subwoofer, but keep the factory amp to drive the dash speakers, so each speaker has its own channel. The new amp would accept speaker level inputs. The current amp has not low or high pass settings, control was accomplished by having the various speakers have the appropriate pass. Is this a crazy idea? Most installers I have spoken with are downright resistant to this plan. Also, I have replaced all of the factory speakers with 2.3 ohm speakers like the originals. Most installers seem adamant at running the new amp at four ohms, even after I point out the speakers are all 2.3 ohm, including the sub. One last Question, would you have any idea as to the mounting depth/width limits on a 2015 Dodge Journey Crossover with the Alpine sound system

  • Buck Pomerantz from Crutchfield

    Posted on 5/27/2015

    Randi, Crutchfield doesn't carry replacement gear for factory equipment like the amplifier in your Acura (which has 6 channels running 8 speakers). An Acura dealership would probably be able to provide one, but it would also probably be very expensive. I would advise you to search local salvage yards or online for a used Acura amp. My Google search turned up three for sale on ebay right now.

  • Randi from Columbus, Ohio

    Posted on 5/27/2015

    The amp in My 07 Acura TL with Navigation keeps cutting out, is there a replacement amp for this unit?

  • Buck Pomerantz from Crutchfield

    Posted on 5/21/2015

    Phillip, You don't necessarily need an amplifier - you may find the receiver's output power adequate for those speakers. If you do want more volume, I would suggest looking for a marine or other power sport-suitable 4-channel amplifier with no more than 100 watts RMS per channel. Only use RMS specs. "Peak," "Max," and "Dynamic" ratings are exaggerated, misleading, and only used by manufactures for advertising their gear as being louder than the next guy's.

  • Phillip Easterday from Knoxville, TN

    Posted on 5/20/2015

    Please educate me!?.... I am planning on putting a fairing on my Vulcan 1600 motorcycle...the fairing has 4, 4" holes for speakers and a single din space for a stereo... the radio I would like to get is a SONY MEX-M70BT which indicates 55 watts x 4 channels peak and RMS 17 watts x 4 channels... I am discovering I am limited on speaker selection by the size of the hole...4".. but I have found Boss CH4230 3 way speakers that indicate 225 watts peak and 115 watts RMS.. If I go by the math 17 x .75=12.75 & 55 x 1.5=82.5...which seems low for these speakers... but 115 x .75=86.25 & 225 x 1.5= 337.5.. which means I guess I need an amp that ranges from 86.25 to 337.50 watts? the amp cant raise the wattage anymore than it is say a radio that puts out 20 watts and a amp that puts out 50 watts, means you get 50 watts.. not 70 watts...correct? So, can you please tell me what rating of amplifier I need or if I need one at all... because my head hurts from trying to see through this, thank you for your time Respectfully Phillip

  • Buck Pomerantz from Crutchfield

    Posted on 5/11/2015

    LB, If you are talking about Bluetooth speakers, then no, you cannot add an amplifier. If you are talking about car speakers, then it would depend on the year, make, model, and quality of the stock system (whether it's premium or not). Some vehicles may require specific factory system bypass harnesses in order to work, but generally speaking adding an amplifier to a car audio system makes the music louder and clearer.

  • LB from nevada

    Posted on 5/10/2015

    i have an after market Beats speakers with a sub, i would like my music to be loud and clear can i just and an amp to it.

  • Buck Pomerantz from Crutchfield

    Posted on 5/4/2015

    Byron, Your vehicle's electronics and factory sound system are intricately connected. Replacing the stereo requires a specific combination of wiring interfaces in order to keep everything working right, and the loss of your front speakers could be a side-effect of that. If you have the info, find the model numbers for all the installation hardware and harnesses used to install your new stereo, then give our advisors a call. Even if you don't have all those details, they probably can help you get what you DO need to get everything working again.

  • Byron from PA

    Posted on 5/4/2015

    My amp in my 2007 Jeep Commander quit working. As I was replacing the head unit anyhow, I didn't have the amp replaced but it was bypassed and now only the rear speakers work. It still sounds good, but I am a sucker for good sound! It has the Bose system in it - six speakers (4 front, 2 rear). Can anyone tell me what amp is included with the market Bose sound system? I am trying to figure out a price to have it replaced as well as what amp to get.

  • Buck Pomerantz from Crutchfield

    Posted on 4/27/2015

    Debbie, Crutchfield does not carry a direct replacement for that factory amplifier, nor a harness to bypass it. Our research shows that the Mark Levinson amplifier connects to the vehicle's databus, so if an aftermarket amplifier were installed with all new wiring, you'd probably lose features like door chimes and navigational audio. You can call and check with one of our expert sales advisors to see if there is a solution out there for you, but I don't know of one besides getting a replacement amplifier from Lexus. Sorry.

  • Debbie Parrott from Issaquah, WA

    Posted on 4/25/2015

    Replacement amplifier for a 2004 Lexus ES 330 Mark Levinson sound system with navigation?