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Crossovers FAQ

Answers to crossover questions

Kicker KX2

An active 2-way electronic crossover

Q: What's a crossover and do I need one?

A: For a more complete answer to the first part of this question, you'll want to check out our How to Choose a Crossover article. A crossover divides an input signal into two or more outputs of different ranges of frequencies, so tweeters, speakers, and subs will each get only the range of frequencies they were designed to play. Frequencies outside each designated range are attenuated or blocked.

Every speaker system needs a crossover of some type. Component speaker sets come with separate outboard crossovers, many with tweeter level selectors. Every full-range, coaxial speaker — with its tweeter mounted in front of the woofer cone — already has a tiny crossover network built into it somewhere.

If you want to run an "active" system, however, you'll need a more sophisticated crossover. In an active sound system each driver (tweeter, woofer, sub) has its own channel of amplification. This dramatically increases the available power, dynamic range (softest to loudest sounds), and your control of the system’s tonal response over the whole audio spectrum.

Almost all amplifiers come with built-in high- and low-pass filters that can serve as the crossovers in a component system. But these filters are small accessory features built into the amps and are often more inaccurate with less fidelity than a separate, dedicated electronic crossover.

An active crossover gets wired between the receiver and amplifier and cuts out the unwanted frequencies before the amp wastes energy boosting them, so the amp can focus on only the frequencies it's supposed to amplify. Active crossovers usually have volume controls on every channel or pair of channels so you can keep all the “voices” of the different drivers in balance. Some active crossovers include other sound-processing features like equalization for further tweaking of the sound to your personal satisfaction.

In a hypothetical 4-way active car audio system the original full-range audio signal might be crossed-over as follows:

  • Low frequencies (say 100 Hz and lower) go to subwoofers.
  • Midbass speakers get frequencies between 100 and 250 Hz.
  • Midrange speakers would see frequencies between 250 and 3,000 Hz.
  • All frequencies above 3,000 Hz are handled by the tweeters.

Keep in mind that the crossover points listed here are for example only and do not apply to every car or speaker system out there. The best crossover points for one vehicle might not be the best for another. It all depends on the speakers being used and the acoustic properties of the car. Most electronic crossovers allow you to choose from several crossover points.

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Component speaker passive crossover

The passive crossover from a set of high-end component speakers

Q: What's the difference between passive and active crossovers?

A: Short answer: an active crossover needs power — a passive crossover does not.

Passive crossovers go between the amplifier and the drivers (tweeters, speakers, and subs). A passive crossover circuit is built with coils, capacitors, and resisters beefy enough to handle the high output power of most amplifiers. Some passive crossovers include a tweeter level switch, which gives you some control over how loud the tweeter plays relative to the woofer. A disadvantage of using passive crossovers is that they filter out frequencies already amplified, creating extra heat and lowering speaker efficiency.

An active, or electronic crossover goes between the receiver and the amp. It handles low-level preamp signals with its solid-state circuitry to cleanly divide the signal and send each band of frequencies in the right direction. Active crossovers are usually adjustable (you can select the crossover points) and often have other features like bass boost circuits for subwoofers. Another bonus when using an electronic crossover is that you can independently control the relative volumes of all your different drivers.

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Audiofrog crossovers

Audiofrog passive crossovers are designed to work with specific Audiofrog drivers

Q: How hard is it to install a crossover?

A: Passive crossovers are very simple to install. They do not require a power connection, a turn-on lead, or grounding. You connect the speaker wire coming from your amp to the crossover's input. Then the tweeter gets wired to the tweeter output, and the woofer to the woofer output. That's it. The most challenging part of installing a passive crossover may be where to mount it, but most crossovers are small enough to fit inside your car door near the woofer's location.

Active crossovers require a bit more planning and time, but with a little effort, almost anyone can get the job done. You'll need to provide 12-volt power from your car battery to operate the crossover just as you must provide a 12-volt source of power to your amp or amps. A distribution block is a good way to get power for your crossover via the same main power cable as the amp does. You'll also need a solid, noise-free grounding point — it's generally best to ground your crossover at the same place as your amp.

Your electronic crossover also requires a turn-on lead to trigger it to turn on when you power up the receiver, and you can either run that wire to the receiver or daisy-chain it to the amp's remote terminal. You'll route the audio signal from your receiver to the inputs on the crossover via RCA patch cables. You then run more patch cables from the crossover outputs to the amplifier inputs — highs to the tweeter amp, mids to the woofer amp, and bass to the subwoofer amp, for example.

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Infinity component crossover

The 3dB switch lets you take the edge off the highs

Q: What's the little selector switch on my passive crossover for?

A: Many component systems have passive crossovers with 2- or 3-way tweeter level switches included. Ideally, a crossover will put out the same level of signal, or volume, to the tweeter as it does to the woofer. But many people find that sounds unbalanced and too shrill and bright. Many speaker manufacturers recognize that and put tweeter attenuators in their crossovers. The settings should include "0 dB," when the tweeter level is the same as the woofer; "-3 dB," for a little attenuation; sometimes "-6 dB," for a lower tweeter level; and sometimes even "+3 dB," for those who like it brighter.

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Stereo 3-way crossover

How an active stereo 3-way crossover fits into a system

Check out all our crossovers at

  • EA from NE

    Posted on 11/25/2020

    When using an active crossover inline before amplifiers, where should the amps' gain and L/HPF settings be with the crossover handling those duties?

  • Bill Young from TRENTON

    Posted on 11/10/2020

    Not sure if my previous question went through so sorry if this is a duplicate. I just purchased an RF T1675S speaker system for my 2018 Chevy Silverado. I downloaded the instructions and they don't have any info on the crossovers that are included. Do I not use them as I am replacing factory speakers to factory locations with no AMP? If not how/where do they go? It looks like all the extra connectors and brackets included are for the speaker install not the crossovers.

  • Henry from NYC

    Posted on 11/5/2020

    Hello, I have a BMW e46 with HiFi system (non-HK) with stock 10 channel amplifier. I plan to replace the stock speakers with aftermarket speakers that match closely to the specs of the OEM speakers, but with slightly better specs. The BMW system has in it active crossover points from the stock amp (23.6Hz @ -6dB/oct slope input high-pass filter for all front channels, then 23.6Hz to 430Hz@-12dB with added notch filters at 190Hz and 550Hz for Woofer output; then 1.25kHz to 5.5kHz @ -12dB for Mids; and then 6 kHz @ 12dB upwards for Tweeter highs). So without changing out the stock amp, do I exclude the inline crossovers that come with the speakers, or is there a way to help streamline or compliment the current crossover points with them, as you can see the stock filter points have "holes" between each range? The stock BMW amp handles 40W @ 2ohms for the woofer channels and 35W @ 4 ohms for all else. Is there a good replacement amplifier/crossover combo that can be used to replace the stock amp (looking for specifications such as RMS rating, number of channels and ohms per channel; not brand names, they can be matched to the specs later), without going too extreme (would prefer good audio, but not over the top; that is why thinking of keeping stock system except for the speakers)? If I put 4 ohm woofers on the 2 ohm channels, would this cause issues with the stock system so long as the speaker RMS is above the rated RMS of the channel from the amp (such as heat or wear)?

  • tony doan from miami

    Posted on 8/14/2020

    I recently installed the morel ccwr254 in a 2010 accord. I am using the supplied capacitor which has an crossover point of approximately 265hz. I have a pioneer avh2700bs and have the hpf at 200hz 12db slope. I've noticed that if I change the slope or lower the hpf to 100hz or so, it affects the sound of the morel, as if there is the capacitor was not connected. Is this normal? Is the slope from the head unit adding up with the morel capacitor slope?

    Buck Pomerantz from Crutchfield

    on 8/18/2020

    Tony, Engaging a second crossover filter will, of course, affect the sound, especially if the second crossover point is different than the first.
  • Jay

    Posted on 8/12/2020

    Is it safe to use the included crossover from a component set with only one of the components? i.e. with just the tweeter

    Buck Pomerantz from Crutchfield

    on 8/13/2020

    Jay, The safest way to hook up your components is to do it as the manufacturer designed, with both tweeter and woofer connected to the crossover.
  • Eric from Granite Bay

    Posted on 8/11/2020

    I recently purchased a component speaker system that includes a passive crossover box but also has an "integrated crossover" built into the wires of both the tweeters and speakers. Am I supposed to use both or are they just including both for different setups? My though was that I should only be using the passive crossover box as it seems that it would be redundant to use that as well as a built-in crossover.

    Buck Pomerantz from Crutchfield

    on 8/11/2020

    Eric, Without knowing precisely what components 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

    Posted on 7/23/2020

    Just put new components in the front doors with tweeters and passive crossovers. Bit of a newbie..I have a pioneer headunit that has Crossover settings. Should I use these crossover settings or leave them off?? Currently do not have an amp.

    Buck Pomerantz from Crutchfield

    on 7/28/2020

    Alex, I recommend setting the high-pass filter in your receiver to about 80 Hz, just to keep extreme lows from distorting. The component's passive crossover takes care of the rest.
  • Todd from Lake Charles

    Posted on 7/16/2020

    After completing the install on my 17 Accord im confused on how to adjust all the crossovers. The new high end Kenwood deck has xovers. The 2 P500 Fosgate amps have xovers. And I have all four corners of the car with separates and passive xovers for each. Plus the T1000 Fosgate sub amp. With the passive xovers controlling all the separates what would be the best setting for the deck and amps xovers. And will any the audio adjustments on the deck have any affect with the passive xovers installed? Thanks.

    Buck Pomerantz from Crutchfield

    on 7/20/2020

    Todd, Use the crossover filters on your receiver or amplifiers but not both at the same time - that would cause distortion. If you think your receiver's electronics are best, use it. Setting both the high-pass filter for the speakers and the low-pass filter for the subwoofer at 80 to 100 Hz is a good place to start.
  • Matt

    Posted on 7/12/2020

    I believe I made a mistake when getting speakers for my truck. I think I should have just gotten a set of components for my front doors/pillars. I have a 2020 F150 and currently have a set of Hertz mille pro 2 way in the doors and also hertz tweeters in the pillars. Is is possible for me to just switch out the 2 way speakers for just a 6.5" woofer that comes in a component set? And would that speaker suppose to be in the range of 250hz-3000hz?

    Buck Pomerantz from Crutchfield

    on 7/13/2020

    Matt, Crutchfield carries about eight different 6.5" midrange speakers. Give us a call and an Advisor will help you pick out the speaker and crossover that'll work best for you.
  • Ken from Nottingham

    Posted on 6/17/2020

    I have a 2012 Ford f250 lariat package with Navigation. I purchased a kicker component package and not sure whether to wire tweeter direct to existing tweeter wire or to use crossover. How can I tell if tweeter wire goes all the way to head unit?

    Buck Pomerantz from Crutchfield

    on 6/19/2020

    Ken, Use the crossover that came with your component set and rewire the new tweeter to it.
  • Derryk from Detroit

    Posted on 5/19/2020

    I currently have a 2011 Camaro with the Boston Acoustic system and an aftermarket AVH-1330NEX. I was considering upgrading the stock speakers but I really don't want to rip out the stock amp. I know I need 2 ohm speakers but now I'm thoroughly confused as to whether I need to buy component speakers with a separate tweeter and crossover or can I just get a single door component speaker and leave the tweeter alone.

    Buck Pomerantz from Crutchfield

    on 5/19/2020

    Derryk, If you like the sound of the factory tweeter, leave it alone and add a new midrange woofer in the door. Or, you could disconnect the factory tweeters and add full-range coaxial speakers.
  • John Naimoli from Media

    Posted on 5/4/2020

    What do you do with the settings on the amp. Do you match them to the crossover or is there a way to shut off crossover on amp.

    Buck Pomerantz from Crutchfield

    on 5/6/2020

    John, Most amplifiers have an off or all-pass setting on their crossovers. A system could have a crossover accessible via the receiver's menu, on a separate processor, and one on the amp. Use only one crossover filter per channel - using two or more at the same time will cause distortion.
  • David from Fredericksburg, VA

    Posted on 4/6/2020

    My '04 XC70 has an aftermarket HU that runs through the stock amplifier. The front doors have separate tweeters from the woofers and the system is working as it should (lows to the woofers and highs to the tweeters). Can I directly replace the woofer and tweeter (with a component system) without installing the crossover supplied with the component system?

    Buck Pomerantz from Crutchfield

    on 4/7/2020

    David, If the factory amplifier is feeding the tweeter directly with processed, crossed-over signal, you can use your components without their crossovers. But commonly, a factory amp sends signal to the door speaker via a single wire, which then goes on to the tweeter. If that's the case, the factory tweeter has a little built-in crossover, which means you'll have to use your components' crossovers when you replace the tweeters.
  • ANDREW from Mankato

    Posted on 2/7/2020

    I have a 2011 Silverado extended Cab. I have Hertz MLK 165.3 LEGEND in front doors & A-pillars, Hertz MPX 165.3 PRO in rear doors, a JL Stealthbox with a W1v3 10" 2-ohm subwoofer in center console. I will be running a JL Audio VX600/6i to power the 6 channels in the doors and a JL Audio XD300/1v2 to run the sub. Will i need to run a crossover with this setup?

    Buck Pomerantz from Crutchfield

    on 2/7/2020

    Andrew, Those amps include all the crossovers you'll ever need for your setup.
  • Jay from Phoenix

    Posted on 1/30/2020

    I just installed a amp and subwoofer and i wanted to know what crossover should i install for four coaxial speakers.

    Buck Pomerantz from Crutchfield

    on 1/31/2020

    Jay, Coaxial speakers usually don't need an external crossover. In a system like yours, though, you'd engage the high-pass crossover filter in the receiver's tuning menu to clean up your speakers' sound.
  • Caleb from Billings

    Posted on 12/30/2019

    In an active system, if I use a 4 channel amplifier for both the tweeters and mid woofers, how do I balance and set the gain so that the tweeters and woofers are properly balanced, from what I understand the tweeters will use a significantly less amount of power, I certainly don't want to destroy the tweeters right away. Thanks

    Buck Pomerantz from Crutchfield

    on 12/31/2019

    Caleb, The best way to ensure you're not overpowering your tweeters is to only hook them to an amp that doesn't exceed their RMS power ratings. The greatest danger to a tweeter comes when it tries to play low notes - that's why you'll still need crossovers in the active system. The balance of high to low sounds in the music should get reflected in the tweeter/woofer output balance. But if the tweeters sound too loud, you can always turn their amp's gain down.
  • Ijaaz Meerun from Phoenix

    Posted on 8/29/2019

    I have a factory head unit media nav, pioneer dsp p919, 2 2000w pioneer sub, 4 pioneer champion series 2 ways speakers, 4 pioneer pro series 2 way speakers and 3 pioneer amplifier. what are the crossover devices and other devices do i need?

    Buck Pomerantz from Crutchfield

    on 8/29/2019

    Ijaaz, You don't need external crossovers, your 2-way speakers have their crossovers built-in.
  • Mike from Quad Cites, IA

    Posted on 8/8/2019

    Do the crossovers that come with component systems require both tweeter and woofer to be hooked up to it? Or could you use just the woofers,not the tweeters, with the crossover being used as a low pass filter?

    Buck Pomerantz from Crutchfield

    on 8/8/2019

    Mike, If you don't hook your tweeters up through their crossovers, low frequency content will blow them apart. Your crossovers control and protect your speakers and tweets. Follow the directions and connect them properly.
  • Abdul Moeed

    Posted on 6/27/2019

    I have Infinity Kappa Perfect 600 two way component system which has an RMS of 100, and with this, I want to add Infinity Kappa 300m midrange to make it a three-way system. This midrange has an RMS of 75. So I have a few questions. I am listing them down one by one. Q1. How many channel amplifier will I need to make this three-way system work correctly? Q2. How much RMS should the amplifier give per channel? Currently, I am using Infinity Kappa K4 4-channel amplifier. This amplifier gives 100 RMS per channel. [link removed] Note: This three-way component system comes with a crossover which has inputs for a midrange in it.

    Buck Pomerantz from Crutchfield

    on 6/27/2019

    Abdul, If you plan on using the crossovers, you'll need two channels of amplification, one channel for each 3-way set. The speakers will be fine with a 75 to 100 watts RMS per channel amp, as long as you set the gain so no distortion plays.
  • Scott from Green Bay

    Posted on 4/7/2019

    I recently watched a video that briefly mentioned the crossover slope can cause different speaker phasing and result in either a bump, dip, or flat transition where the crossovers overlap (I.e. Between a sub and main speaker). Is that true, and do you have any info on that topic?

    Buck Pomerantz from Crutchfield

    on 4/13/2019

    Scott, You're digging deep into a complex subject. I did a web search using the words "shapes of crossover slopes" and came up with quite a few sites that explain what's going on with crossovers. This site looks interesting and informative.
  • Pete from Reading

    Posted on 1/19/2019

    Hello I'm running eclipse 7200mkll to Polk mm components and jl8w3v3 sealed and am looking for an amp. I began looking for one with bandpass xover to bi-amp polks. Is this necessary or recommended or not since I have my HU DSP? I always used xovers on HU AND amp but have been hearing about only using a single source xover. Thank you for all the help!

    Buck Pomerantz from Crutchfield

    on 1/21/2019

    Pete, You should use the crossover of either your receiver or your amplifier, but not both at the same time. Adding a second stage of filtering often introduces distortion.
  • shane from Pittsburgh

    Posted on 12/8/2018

    My component speakers came with a crossover for each speaker. Kicker Ks 44KSS6504. Does this mean I can't set my crossovers? I can set them through my head unit which is the way I planned on doing it and having the amp crossover set to full range. Would this be ideal?

    Buck Pomerantz from Crutchfield

    on 12/8/2018

    Shane, The crossovers that came your component sets mitigate the signal between the tweeters and the woofers of the sets. The crossovers in your head unit and amplifier are more like tone controls, attenuating the notes and frequencies the speakers can't handle very well. In your case, I recommend setting a high-pass filter to around 80 to 100 Hz in the head unit, if it has one. That'll clear any muddiness out of the sound. Then leave the amp crossover to full-range.
  • Greg from Minneapolis

    Posted on 11/19/2018

    Still waiting for my Morel Hybrid 602's and Tempo ultra 602 coaxials to arrive and have a couple questions. First, would it be beneficial to run active cross over to the Hybrids rather than those impressive passive crossovers? And would I be better off scrapping the coaxials for my rear fill and use my Alpine PDX-V9 to power just my Hybrids and sub via active crossover?

    Buck Pomerantz from Crutchfield

    on 11/20/2018

    Greg, It sounds like you're trying to correct problems that don't exist for an unbuilt sound system. Why don't you install your gear and listen to the system first, before deciding to scrap one set of speakers and go active with the other set.
  • Castulo from Avenal

    Posted on 11/9/2018

    I have a 2018 Hyundai Elantra with I'm guessing component speakers because the tweeter is separate from the main speaker/woofer in the front door and was wondering how I would connect the wires of both the tweeter and woofer to the input of a crossover since there would be 4 wires a positive and negative from the tweeter and woofer? I plan on replacing the speakers with JBL GX600C's which comes with a crossover for each side, but just not too sure how to wire them. Thanks!

    Buck Pomerantz from Crutchfield

    on 11/9/2018

    Castulo, The crossover for those component sets are clearly marked. "IN" connects to the factory speaker wiring coming from the radio. "WF" is the woofer output of the crossover and goes to the woofer. The "TW" output goes to the tweeter.
  • Norman Ham from Mountain City

    Posted on 9/23/2018

    Would there be a noticeable difference in sound quality by using an external crossover in a 2.1 home stereo system used for music only? From what I have read, it seems most external crossovers are intended for car audio or live performance setting. Is there an external crossover designed for home audio? Is there a need for one in that application? Any input is appreciated. Thank you,

    Buck Pomerantz from Crutchfield

    on 9/24/2018

    Norman, You'd be hard-pressed finding an active crossover designed for home stereo use. I suppose one could use an active stereo 3-way crossover designed for a PA speaker system in a home system. Then the amplifiers powering the tweeters, mid-bass drivers, and subwoofer could apply their power more directly and efficiently.
  • Aaron V from Fall River

    Posted on 9/21/2018

    I have factory 4x6 components in the front kick panels and tweeters in the doors. I want to update these speakers, but you don't have 4x6 components. Can you run a coaxial 4x6 with a tweeter on the same power using a crossover?

    Buck Pomerantz from Crutchfield

    on 9/21/2018

    Aaron, You can connect a full-range coaxial speaker along with a crossed-over tweeter, but you may find the high-frequency output too loud or shrill.
  • Jose from Philadelphia

    Posted on 8/16/2018

    What kind of crossover should I get,2/3/4/5 ways?

    Buck Pomerantz from Crutchfield

    on 8/17/2018

    Jose, The kind of crossover to get depends on how many and what kind of speakers you want in your system.
  • Alfred

    Posted on 6/26/2018

    I have a Sony XAV-W651BT headunit, Sony XS-GS1621C component speakers in the front, Kicker CS693 coaxial in the rears, Sound Magus 5 ch amplifier with LPF and HPF, an active 3-way crossover and a Pioneer sub. I want to retune the system. How should I start? Do I set the filters in the crossover and disregard the filters on the amplifier or I set both? How about the gain control? Do I set the gain control on both the crossover and the amp or just in the amplifier? Thank you.

    Buck Pomerantz from Crutchfield

    on 6/27/2018

    Alfred, It's not clear to me at all what's in your system nor how it's all hooked up. I don't know what your 3-way active crossover is even for, when both the receiver and amplifier have crossovers of their own built in. To more directly answer some of your questions - every piece of equipment needs to have its gain set properly, and you should use the crossover filters of only one device at a time. For more help, check out How to set gain using test tones and Tuning your subs.
  • Jim

    Posted on 6/25/2018

    Hi, I have Focal ps165 v1. Two switches for the tweeter crossovers: one labeled (0,-3,-6) and another labeled 1,2,3. Can you explain what the 1,2,3 switch is used for? I unsderstand the 0,-3,-6 is used to lower the tweeter level. Focal manual is terrible.

    Buck Pomerantz from Crutchfield

    on 6/25/2018

    Jim, Those switches let you choose between three different crossover points for the tweeter. If I'm interpreting Focal's owner's manual correctly: 1 is for 5000 Hz, 2 is 4500 Hz, and 3 is 4000 Hz.
  • Sergio from Fulllerton

    Posted on 6/20/2018

    I just installed some k2 focal speakers. I moved the settings on the crossover. I don't hear a change in sound and the tweeters are very bright. Are my crossovers defective?

    Buck Pomerantz from Crutchfield

    on 6/20/2018

    Sergio, Focal K2 crossovers have three tweeter output level settings: 0 dB (the brightest), -3 dB, and -6 dB (the least brightest). Sounds like you need to set yours to the -6 dB setting. Any further tone and sound adjustments can be made in the receiver's menu.
  • Kevin W. from Ann Arbor, MI

    Posted on 6/6/2018

    Good day! I have a 2013 Fiat 500 Abarth and have been upgrading the sound system bit by bit. I am currently running a Pioneer AVH-X7500BT head unit, a Pioneer TS-SW2002D2 subwoofer in the back, and a pair of Polk DB652 coaxial speakers in the doors (I have left the rear speakers alone thus far). I was going to replace the tweeters in the A pillar location with a set of JBL Club 3/4" 750T tweeters, but was wondering; should I use the included inline crossovers they came with? Do I even need them or should I simply replace the OEM tweeters with them by themselves?

    Buck Pomerantz from Crutchfield

    on 6/6/2018

    Kevin, You should definitely use the crossovers that come with your tweeters. Anything else risks damaging the tweeters with low frequency signals.
  • Buck Pomerantz from Crutchfield

    Posted on 3/16/2018

    Mike, You should use the crossovers that came with your components. They divide the signal between the tweeters and woofers. You would then use the high-pass crossover filter on the amplifier to keep away extreme low notes that could distort the sound of the speakers.

  • Mike w from Struthers

    Posted on 3/13/2018

    I just bought 2 sets of the Kicker ks675 components. Should I just use the crossover that came with them and run my amp on full pass, it doesn't have an on off switch.

  • Buck Pomerantz from Crutchfield

    Posted on 3/6/2018

    Troy, Try starting with both the high-pass filters for your speakers and the low-pass filter for your sub at 100 Hz, and adjust from there 'til it all sounds good.

  • Troy from Warren

    Posted on 3/5/2018

    Hello, I purchased the infinity kappas 6011cs components for my front and rear. I have a Rockford fosgate p312inch enclosure. My question is should I have a full signal going to my kappas since there is a passive crossover hooked up or do I need to put some high pass filter on them. And if I do should I set the high pass at 45 since that is the bottom frequency response according to the specs and then set my sub at 45 on the low pass so it blends good. Thank you for any help you can provide

  • Buck Pomerantz from Crutchfield

    Posted on 3/5/2018

    Susan, The JL Audio FiX processor removes factory EQ and time alignment from a factory radio system. Adjusting the EQ or anything on the receiver will often nullify the FiX processing. I suggest you return to your installer and politely ask them to tune your system more to your liking.

  • Susan from Sacramento

    Posted on 3/3/2018

    Hello, I just had a JL audio system installed. JL C5-650 speakers front & rear RD 900/5 amp, CP 108LG-W3v3 sub, JL Audio fix processor, with full door dynamat in front and rear doors. It does not sound good. More music, less voice, nor crisp or clear, sound sounds muffled. Have to change EQ settings frequently and still doesn't sound right. Too much bass, flat, not enough treble. System was tuned with processor CD only. What might I need to turn this system into a great sounding stereo? I paid a lot for system and install. 2017 Subaru Outback. Please help.

  • Buck Pomerantz from Crutchfield

    Posted on 1/23/2018

    Jason, Yes, you can mount your crossovers in the rear of your vehicle instead of the doors.

  • Jason Faulkner from Williamsburg

    Posted on 1/22/2018

    Hello, I have a new kicker 6.5 components and kicker coaxial in the rear doors. I'm running them off a jl audio 4 channel amp places in the rear compartment behind the seats. My question is can I mount the component crossover in the rear instead of the front door? Thank you for your help.

  • Buck Pomerantz from Crutchfield

    Posted on 11/2/2017

    Johnathan, Most tweeters come with their own crossovers set to the frequency the manufacturer designed for the tweeter to operate safely. A tweeter will probably play using a crossover it wasn't designed to use, but it may play poorly or unsafely.

  • Johnathan from Youngstown

    Posted on 11/2/2017

    I have a pr of crossovers installed in my front doors, I'm replacing the tweeters and they're a different brand, is it alright to mix and match passive crossover networks?

  • Buck Pomerantz from Crutchfield

    Posted on 10/30/2017

    Larry, What kind of crossover are you referring to? Are the tweeters part of a component set? Not knowing exactly what gear you have make it impossible to give advice on how to wire them together. If you want a question answered about a system, you must identify the equipment by brand names and model numbers.

  • Larry from Fresno, ca.

    Posted on 10/30/2017

    Larry here im connecting my tweeters, does the stock speaker wire power the crossover, or do i need to physically run a power wire to the crossover. I have watched a few sites now and NONE actually show or talk about running or connecting a power wire to the crossover. Hell do i even need a crossover please help..

  • Buck Pomerantz from Crutchfield

    Posted on 7/26/2017

    Anthony, Both your amplifier and receiver have extensive signal processing capabilities. That amp has an AccuBASS circuit that augments bass response. That receiver has 13-band EQ, bass boost, and subwoofer level controls. You should use the controls of one device or the other, but not both at the same time. Use the controls that you are most comfortable with. You would effectively bypass the amplifier's processing by making sure that for both channels the AccuBASS is disengaged and the filters set for high-pass with the knob turned fully counter-clockwise to the 30 Hz setting. An important part of tuning is setting the amplifier gain properly with all the other processing engaged. Check out Tuning your subs for help with that.

  • Anthony from Los Angeles

    Posted on 7/25/2017

    Hello, I have a Kenwood KDC-X701 HU connected to an Audio Control LC-4.800 with the ACR-1 wired remote. The front channels are running a pair of Focal 165AS components, and the rear channels are bridged to an Infinity Reference 1200S 12" sub. The sound is muddy, and the sub doesn't kick in until the bass remote is turned up all the way. My question is in regards to the crossover settings as I read that using both the crossover on the HU and the Amp will cause phase distortion. So which would you recommend using? Should I keep the HU X-over settings set to "through" (I assume this bypasses the internal X-over settings)? I'm not sure how I would bypass the amps built-in settings. Any help in this regard would be great. Thanks!

  • Buck Pomerantz from Crutchfield

    Posted on 7/11/2017

    Jun, Those components come with external passive crossovers and the amplifier has built-in active crossover filters, so you don't need any other device to control the distribution of signal to the various drivers. A good place to start is by setting the high-pass filters on the front and rear amp channels to about 100 Hz, and the low-pass filter on the subwoofer channel also to about 100 Hz. Then - adjust to taste.

  • Jun Lamata from Bacolod

    Posted on 7/10/2017

    Good day! Sir i have this for my set up *Pionner 5850BT headunit *2 sets for front and rear Kicker 41KSS654 6-1/2" component speaker system *One Kicker TCWS10 Loaded 10" 2-Ohm CompS Sub *Kicker 40KX800.5 Do i need an active crossover? Can u suggest any brand? Kicker or audiocontrol? Thanks!

  • doug myers from phoenix az

    Posted on 7/9/2017

    The article is excellent and these questions and answers are gold. I followed Buck's counsel above, and the resulting system is indeed rockin'.

  • Buck Pomerantz from Crutchfield

    Posted on 5/24/2017

    Matt, I think that speaker's intrinsic frequency response will make adding another crossover filter unnecessary. But if you do find that your speaker distorts, a Bass Blocker may help.

  • Matt from Los Angeles

    Posted on 5/23/2017

    I am installing a single Infinity Kappa Perfect 300m as a center dash replacement to a 2016 Mazda CX-5 with a stock Bose amp, which I am pretty sure already filters out the low end from the front speaker. My question is whether I need an additional crossover for additional filtering. Do I? The amp probably only does about 30 w RMS to the center chanel, and it can RMS 75 w (300 w max) so I'm not worried about blowing the speaker, just whether I should limit the frequency in addition to what's already done by the stock amp. Thanks!

  • Buck Pomerantz from Crutchfield

    Posted on 5/9/2017

    Wilson, A tweeter needs a crossover to keep away low frequency signals that could destroy it. Fortunately, most tweeters come with crossover filters included.

  • Wilson Choo from Gelang Patah

    Posted on 5/8/2017

    Hi! I have installed a Pioneer AVH-X5850BT and I plan to add in a Tweeter (either Alpine / Pioneer), do I still need a crossover to match with Tweeter to make the sound clear? All other speakers are stock.

  • Buck Pomerantz from Crutchfield

    Posted on 2/2/2017

    David, A pair of Bass Blockers, high-pass crossover filters, may be just what you're looking for. I'm sure something like them are available in your area.

  • david from nottingham

    Posted on 2/1/2017

    Hi lads i have just brought some pioneer 2 way component speakers to go with my alpine ida-x305s i have a sub in the boot so question is should i fit a cross over to my midrange speaker as well as having one with my tweeters so i can cut out some of the bass ? thanks

  • Buck Pomerantz from Crutchfield

    Posted on 1/16/2017

    Doug, That receiver was designed for exactly what you want to do. Its high, mid, low, and subwoofer outputs can all be controlled by the onboard crossovers. All you need to add is 7 channels of amplification for a rockin' system.

  • doug myers from phoenix az

    Posted on 1/16/2017

    I have the Pioneer Dex P99RS. It has 4 sets of outputs. I want to use the 4 for 1) Morel Picciolo tweeters, 2)Focal 165 KRX2 midrange (tweeters removed), 3) Focal Utopia Be 13 WS subs for modbass, 4) JL 10w6 sub in trunk. My two questions: Does using the 4 HU outputs in that manner sound correct to you? I understand the HU has built-in crossovers, can I use those crossovers as the crossovers for this setup?

  • Buck Pomerantz from Crutchfield

    Posted on 1/10/2017

    Jim, HPF stands for high-pass filter, and you use one to remove the bass from speakers that can't handle it. Although I can't see in the KD-R970BTS owner's manual that any such control is available in that model, you can start by setting yours at 100 Hz and see if that sounds good or not. The lower you set that filter, the lower the notes that the speakers will be able to play. But don't expect great bass from your full-range speakers - only subwoofers produce true bass.

  • Jim from Kansas City

    Posted on 1/10/2017

    I need help understanding how to interpret my crossover settings of my head unit. I have: Receiver :JVC KD-R970BTS CD receiver speakers. JBL GTO509C 5-1/4" component speaker system w/passive crossover. Front Door Panel: Tweeters and 5 1/4 woofers (JBL's) Rear door panel: Factory speakers crossover: passive (has a button on it, what does this do?) I don't have a sub woofer (yet), so I my speaker output setting with front/rear I need guidance on how to set the crossover (xover) setting from my head unit? My xover settings on my head unit offer a hpf setting for freq, slope, and gain for my front and rear speakers as it also has settings for the tweeters. Can you explain what the the HPF's do and offer me some initial settings. With how i understand it the hpf filters out the bass below the settings. If this is the case how might I get the proper bass output out of my front/rear speakers? thanks for your help. Jim

  • Buck Pomerantz from Crutchfield

    Posted on 12/19/2016

    Iliya, I recommend you start off running your rear speakers full-range. Then, if they distort when trying to play bass notes, you can add a couple bass blockers to

  • Iliya ch from Israel

    Posted on 12/19/2016

    Hello. I have this speaker system in my car: JBL GT7 -5c component in the front doors JBL 1204B subwoofer amp Kenwood KAC 7406 (4ch amp, 2 for the component and briged 3,4 for the sub). I want to add the JBL GT7 -6 to the rear shelf, and to buy another amp Kenwood KAC 9206D mono for the sub, and use the first one for the 4 speakers. My question is, on the mono amp ther is an LPF, and on the 7406 ther is an HPF in channel 1&2, BUT there isn't on channel's 3&4 for the new shelf speakers, do you recommend for my the buy an active crossover because of that, or run the GT7 6 on fullrange? Thank you!

  • Buck Pomerantz from Crutchfield

    Posted on 11/28/2016

    Romeo, You won't need an equalizer or a crossover unless the tone controls of your receiver are inadequate to make it sound good.

  • Romeo from Cerritos

    Posted on 11/27/2016

    I will be installing a classic Pioneer KP500 head unit. I remember loooong time ago, our car was equipped with an equalizer. Not sure if I need a crossover, amplifier, etc. what I currently have is the head unit and the speakers. Thanks for responding.

  • Buck Pomerantz from Crutchfield

    Posted on 10/14/2016

    Darrell, A component woofer needs a crossover filter to keep high frequencies from playing, so if you want to put in a pair, you'll need crossovers for them too.

  • Darrell from Kennesaw

    Posted on 10/13/2016

    Hi, I just had Infinity REF-075tx tweeters installed with built in crossovers in my car not realizing I should have just bought components. I already have 2-way coaxial in the front & 3-ways in the rear. The dash tweeters appears to be a bit much than I need. Can I just leave the dash tweeters with the built in crossovers & change my door speakers to a component woofer without the crossover?

  • Buck Pomerantz from Crutchfield

    Posted on 8/29/2016

    Cooper, Do you mean connecting two crossovers to each of your tweeters? That's a bad idea - their interactions will create phase distortion, not improve performance. Use one or the other crossover, not both.

  • cooper dolan from Boise

    Posted on 8/27/2016

    Hello. Your very kind to help so many people out, I was hoping I could be one. I understand you shouldn't exchange tweeters from a set. But hypothetically if I did, would an in line crossover for a tweeter cancel out with a passive crossover that's already I'm place? Or would it multiply the frequency dropoff? Thanks

  • Buck Pomerantz from Crutchfield

    Posted on 6/1/2016

    Ty, A crossover is essential for a 2-way speaker system to work safely - otherwise, the tweeters would tear themselves apart trying to play low notes. A crossover's design and ratings are determined by the speaker's manufacturer and are different for each component set. I suggest you contact Infinity's tech support to see about getting a replacement crossover for yours. You could potentially use an external crossover, but you'd be guessing what the crossover point would be, and could only hope that it would work safely with your components

  • Ty Curtis from Phoenix

    Posted on 5/28/2016

    I recently acquired a set of infinity 6x9 kappas but they are missing the crossovers. Is it possible to wire the without? I have an alpine pdx-5 which will be driving them. Please advise what I need to do withthe4 wires if I can go ahead and use them crossover-less.

  • Buck Pomerantz from Crutchfield

    Posted on 5/16/2016

    Michael, The high-pass filters on your amplifier for the front and rear speakers are meant to keep bass out of their signal paths so the subwoofer alone will play the bass - you should use them. Most full-range speakers don't do very well with low frequencies anyway, and some even distort when attempting to play them. Check out this article for help tuning your system.

  • Michael from Houston

    Posted on 5/15/2016

    Greetings: I have a 3-way component setup as my front stage in my SUV. I have 2-way 6x9 in the back for rear-fill and and sub in the rear. I have a 5-channel amp controlling everything. I am a bit over my head with the tuning and the adjustments needed to make my setup sound its best. For my front stage I have a set of MMATS PRO 651. These come with a pretty elaborate 3-way passive crossover featuring a tweeter adjust of -/+ 3db. My question is can I turn off the HPF filter for the 3-components on the amp and let the passive crossover handle the adjustment? I was going to turn the HPF on for the rear but I am unsure on how to make the manual "tweek" adjustment (Frequency 50-200Hz). further, if it is better to turn on the HPF for the 3-way component setup what would be the best way to adjust the range (50-200Hz)?

  • Buck Pomerantz from Crutchfield

    Posted on 5/2/2016

    Jaime, It depends what you're going to use the crossover for. If it's to divide the signal for tweeters and woofers for the front, then use the front channel outputs of your receiver. If it's for rear components, then use the rear outputs. The receiver already has a subwoofer output, so you wouldn't need to use an external crossover to get signal for a sub.

  • Buck Pomerantz from Crutchfield

    Posted on 5/2/2016

    Randy, Use the crossover that comes with the component set, they are designed to work together. Whatever crossover your car's factory system used needs to get by-passed so your new speakers' crossovers are fed full-range signals.

  • Jaime from Rio Grande

    Posted on 5/1/2016

    hi : i recntly bought kenwood car stereo kdc-bt362u which have 3 sets of rca outputs ( front-rear-sub ) need to know which rca out put provide the correct signal to feed an external active crossover ? car stereo connections instructions do not provide this response in the diagram.

  • Randy from Marysville

    Posted on 4/30/2016

    I'm planning on upgrading my tweeters and woofers in my car , which already has stock tweeters and woofers . My question is, do I need to use the crossover that comes with the components or can I just wire them to the factory wiring?

  • James Million from denham springs

    Posted on 3/3/2016

    Hi I have a kicker 12 hooked up to a power acoustic 1300 watt amp I only have one set of Eva plugs on my CD player but I want to hook my 4 6×9 up to a high amp do I have to have a crossover or can I just use a y splitter

  • Buck Pomerantz from Crutchfield

    Posted on 2/23/2016

    Kieran, Most component systems sound better when amplified, but you can run them with the power of a receiver's built-in amp. Hook up the crossovers just like they're speakers - using the factory speaker wiring is the simplest way. Your components probably came with a set of instructions which should show you in more detail how to wire them up.

  • Kieran

    Posted on 2/23/2016

    Hi I have recently brought a set of woofers and tweeters, my questions is do I need an amp to wire my crossovers or am I able to wire it straight into my head unit and if so how?

  • Buck Pomerantz from Crutchfield

    Posted on 10/22/2015

    Mohamed, It sounds to me that you'll need a stereo 3-way crossover for your system. You'd use the high-passed channels for your tweeters, band-pass (high-passed and low-passed) for the front midbass speakers, and low-pass for your subwoofer. You could then run the rear speakers using the high-pass filter on the amp to clean up the sound.

  • Mohamed from Nevada

    Posted on 10/21/2015

    Hi Buck, I have to following equipment I want to install in my car. a tweeter in the desh, a 6x9 ( plain no tweeter just a woofer) on the from door, 6.5" (woofer) rear door and a sub at the back. Its all connected to a 5channel amp that has setting for His pass 35Hz-250Hz, a switch HPF and gain setting for all 4 channels. Then the 5th channel has gain, low pass 35Hz-250Hz and base boost 0db-12db. 1 extra 2 channel amp for the tweeter. I want to go active i need to know if I can use a 3 way crossover then only tune the 3 drives 1 rear door woofer on the crossover low pass, 1 front door and tweeter at hi pass. Then have the 5 channel of the amp the sub out of the crossover and use the amp 5th channel sub settings with causing any imbalance on south turning. Do I have to buy a crossover that has option for all the drive including the sub or I can have the sub out of the crossover and use only the sub settings in the amp?

  • Buck Pomerantz from Crutchfield

    Posted on 10/12/2015

    John, The word attenuate means to reduce a signal's level. On a crossover, when the tweeter is set for 0 dB it means it has the same level as the woofer. -3 dB means it's set a bit lower than the woofer; -6 dB even lower. To get your tweeters sounding brighter, set the crossover's tweeter output to the 0 dB setting and adjust the treble or high EQ control of your receiver to taste.

  • John from Virginia Beach

    Posted on 10/11/2015

    in reference to tweeter attenutors,you say 0db gives the tweeters and woofers the same signal....does -3db setting make the tweeters brighter? I read you mention -6db gives the tweeters a lower sound,but I am not sure what you mean when you say that -3db give the tweeters a little attenuation? Is that brighter? My alpines have no +settings so Im not sure,as I would like to brighten the sound of my tweeters.Can this be done with the crossover settings on my amp? I just dont understand the crossover settings or how to set them on my amp.Tyvm,John in Virginia Beach

  • Buck Pomerantz from Crutchfield

    Posted on 8/25/2015

    Scott, I can't tell for sure but it sounds like you're trying to tune your subwoofer by using three crossovers: one in your receiver set at 80 Hz, a stand-alone (MTX) set at 50 Hz, and one in the amp set at 60 Hz. If that's the case, I think you should remove the MTX crossover from your system and use the low-pass filter and bass boost on either the receiver or the amp but not both at the same time. I recommend starting with the low-pass set around 100 Hz and the bass boost off, and adjusting to taste from there.

  • scott miller from lafollette tn. 37766

    Posted on 8/25/2015

    I have been in audio for nearly 30yrs but have recently changed from A/V to d for the power but I cannot get the bass to sound like the a/b. I have vey good sq subs(Boston g5). Top of line 2001 alpine w4v out. head unit low pass on 80, mtx crossover set about 50 with 45hertz boost about 3/4. And strapped black kicker kx.1200.1 at about 3.2 setting ohms.the kicker kick eq is set at about 60hrtz and 45 12db boost is at about 1/4. I would greatly appreciate some pointers. Box is in parameters of the g5s (ported). I went from old sound stream Rubicon 1002 to the kicker amps. Maybe the a/b to d or actual amp crossover are why. If u could just recommend some xover freqs to try. Tinkering u

  • Buck Pomerantz from Crutchfield

    Posted on 8/5/2015

    Sachin, The only way to tell is to hook them up and give a listen. If you think they don't play loudly enough, you can always add an amplifier later.

  • sachin from new delhi

    Posted on 8/5/2015

    will Sony - XS-N16202C 16cm 2-Way Separate Type Speaker (Component Speakers) give a good output even if i have not connected it with a amplifier

  • Buck Pomerantz from Crutchfield

    Posted on 8/4/2015

    Sachin, You don't absolutely need an amplifier to run those speakers - but they certainly would sound better with one.

  • sachin from new delhi

    Posted on 8/4/2015

    i bought Sony - XS-N16202C 16cm 2-Way Separate Type Speaker (Component Speakers) do i need to connect it with a amplifier

  • Buck Pomerantz from Crutchfield

    Posted on 7/22/2015

    Azhar, If you want to make sure low frequency notes won't distort or muddy up the sound, you can set a crossover to around 100 to 80 Hz to allow only notes higher than that to play from the speakers.

  • Azhar from Kuala Lumper

    Posted on 7/21/2015

    Hi, My speaker freq response range is 75 - 20k Hz. Speaker impedance is 4ohm and output power range from 25 to 100W. If i want to make the crossover, which value of Freq Response should i consider? Min value or max value? Thanks...

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