Name: Alpine KTP-445A Power Pack
Brand: Alpine
SKU: 500KTP445A
Price: 399.00 CAD
Availability: InStock
Rating: 5 (322 reviews)

Q

Can I use this on my door speakers, but then still use my factory amp for the subwoofers? In 2013 Nissan Frontier with Rockford Fosgate.

scott May 18, 2023

1 answer

A

This would not be possible. We do not recommend using this amplifier in car audio systems that include factory amplifiers.

zachary May 18, 2023 (Staff)

Q

Will this work with Alpine CDA-7897?

mark Apr 20, 2023

1 answer

A

Greetings Mark, thats an excellent question. The 445A is more an Alpine specific plug in go model with much less wiring. The radio plugs on the CDA-7897 are almost dead on with a newer compatible Alpine stereo for this amp. If you choose to plug and go, one wire on your Alpine will not be connected. Maybe it matters, maybe it not even connected in your vehicle. It is the audio interrupt/cell mute wire in pin 15. Other than that plug and go.

thomas Apr 20, 2023 (Staff)

Q

Will this work with a alpine cda 7875?

mattk Mar 02, 2023

1 answer

A

You will want to use the Alpine KTP-445U in the link below, Matthew. The universal unit does not come with the Alpine specific plug (no guarantee it matches your older Alpine radio) and has speaker-level inputs, so you can connect it to any source. Don't forget to add the Crutchfield CK12 wiring kit in the second link below for best possible performance! https://www.crutchfield.com/p_500KTP445U/Alpine-KTP-445U-Power-Pack.html

bo Mar 02, 2023 (Staff)

Q

What is needed to make this amp a plug and play in my 21 jeep gladiator?

john Jan 12, 2023

1 answer

A

That is a great question and we would need a little more information about your particular gladiator to see if we had any t-harnesses to make that Alpine amp plug and play. If you can give us a call at 800.324.9695 one of our helpful advisors can take a look at what adapters we have available and get a get cart set up for you!

arielle h Jan 12, 2023 (Staff)

Q

I'm installing an alpine UTE-73BT and a alpine KTP-455A. My question is the after market harness doesn't have a blue remote wire. So where do I hook the remote wire too? Can I hook it into the red wire?

mark Jul 28, 2022

1 answer

A

The UTE-73BT has a blue/white wire (pin 7) on it's harness that is the amp turn-on wire. That is what is used to turn on the amplifier.

thomas Jul 28, 2022 (Staff)

Q

i have a 2015 Lexus NX200T F Sport... and this is compatible with correct??? it is considerably different looking than the one that was just pulled out of my car

amy Sep 24, 2021

1 answer

A

You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you.

kenneth Sep 26, 2021 (Staff)

Q

I read this is a plug and play upgrade for 2021 challenger scat pack. Is is that easy or have to have dealer do something to computer?

shawn Sep 02, 2021

1 answer

A

all i had to do was plug this into my current alpine stereo and go

kim Sep 02, 2021

Q

I have a 2007 silverado classic with bose, I got rid of the Bose speakers and am using kicker components in all four doors, would I have to wire around the factory bose amp to install this?

elliot Aug 16, 2021

2 answers

A

Correct, you would have to bypass the amp and wire the speakers separate from the Bose amp.

robert Aug 19, 2021

A

Yes, Crutchfield usually has wiring solutions to bypass Bose amp. Is your head unit aftermarket? This usually makes wiring mutch easier. At the same time there are all kinds of adaptive wiring harnesses sold by Crutchfield.

gabor Aug 19, 2021

Q

Can I add another speaker amplifier while having this power pack connected to my head unit?

taylor Jul 23, 2021

2 answers

A

I did. I used this amp to drive my speakers and then connected a much larger amplifier to my head unit's pre-outs for subwoofers.

john Jul 23, 2021

A

Yes, the other amp could connect via the rca output jacks on your head unit. The power pack uses the speaker level outputs from head unit.

scott Jul 23, 2021

Q

Can I add another speaker amplifier while having this power pack connected to my head unit?

taylor Jul 23, 2021

2 answers

A

yes you can though the preamps

donald Jul 23, 2021

A

I connected a 200 wt. amplified 10" subwoofer to my sub. output in addition to this 45 watt×4 power pack. This combination sounds fantastic. I do not know the technical answer to this question. I would not want to do this.

ted Jul 23, 2021

Q

I plugged in following instructions which are pretty straight forward. Not getting any sound out of speakers. The alpine head unit works as it should when power pack is not plugged in. Head unit has power and functions with pack plugged in but yeah, no sound. What is the fix?

daniel May 17, 2021

1 answer

A

If you purchased the product from Crutchfield, feel free to contact our Tech Support team. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.

kristina May 17, 2021 (Staff)

Q

does this unit come with wiring descriptions/color coded as I am installing this unit in a motorcycle and not a car?

keith Mar 29, 2021

1 answer

A

Alpine does put a color code chart in the box to identify the functions of its wiring. If you have a Harley, our technical support should have their wire color codes to help our customers install this onto them

jason Apr 14, 2021 (Staff)

Q

I recently swapped over to the Apline iLX-W650 in my 2015 Sti with the Harmon Kardon setup. Will the Alpine KTP-445A work for just the corner, front, and rear speakers? I still have the factory subwoofer connected.

brandon Jan 23, 2021

1 answer

A

If you wire your speakers to the output of this inline amp and don't use the factory amp you should be fine. This is strictly a inline booster.

matt Jan 23, 2021

Q

I now have a alpine cde172bt will the plug that goes to the stereo got to the amp 1st then the plug coming out of the amp fit the cde172bt stereo that I have?

john Jan 18, 2021

1 answer

A

IT's been 2 long years since I even looked at the back of this. I honestly cannot remember how I did this. What I DO remember is that it was about the easiest install I ever performed as a retrofit in over 50 years. I installed this as a replacement for some bargain basement head unit in my 98 Grand Cherokee. The only challenge was converting the tail hatch into one that accepted speakers. The audio quality is well worth the hassle.

kirt Jan 18, 2021

Q

Is this compatible with Alpine ILX-107? I bought this head unit with you guys a few years back. Have 2008 Porsche 911 Cab. Thanks.

anh Dec 14, 2020

2 answers

A

This is a great piece. It is so versatile, it can be configured in a number of ways. Should be no issues. You will want to upgrade the speakers to take advantage of the extra power.

james Dec 14, 2020

A

Yes it is

nick Dec 14, 2020

Q

Is this compatible with the i209-WRA? Have it in a 2015 Jeep JK.

kenny Jul 14, 2020

1 answer

A

I'm sure it could be wired to work with your head unit since it is essentially a 4 x 50 watt amp in a small package. It has brackets so it can be perfectly mounted to the back of an iLX-W650 and still have a shallow installation depth. Forgo the brackets and you have a great amp that you can connect to your i209-WRA or any other car stereo. You just have to find a place to mount it. Considering it's small size, that shouldn't be too much of a challenge.

lea Jul 14, 2020

Q

Can I connect two of these for 8 speakers?

mark d Jun 30, 2020

1 answer

A

Unsure but if possible will still have to make a custom harness to connect radio to amps

john Jul 01, 2020

Q

looking for the pin location on my amp. When I turn over the amp there is no pin location . Do I remove the cover to get to mine? the pix in reviews shows a location for pin switch and I want to check my pin settings. thanks Tom

thomas j Apr 06, 2020

1 answer

A

If you purchased the product from Crutchfield, feel free to contact our Tech Support team. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.

kristina Apr 22, 2020 (Staff)

Q

I was thinking of adding this to my Alpine ilx-207. When I add it to my cart I get a notification that I need to order a wiring kit for it. I didnt think it required a 12v line to the battery. I just want to make sure I am getting the right power pack and dont order anything unnecessarily. Will this power pack work with my setup?

jeffery Mar 22, 2020

2 answers

A

I did order the wiring kit and used it as directed overall just made it easier to hook everything up

william Apr 09, 2020

A

So, whether or not you need a separate power and ground is dependent on your vehicle. You should reach out to one of our advisors for more personalized help! https://www.crutchfield.com/support/ContactUs.aspx

thomas Apr 09, 2020 (Staff)

Q

Will this run a pair of jl audio c1-650 door speakers or should I get something a little bigger?

damon Feb 17, 2020

1 answer

A

It will work but suggest something a little stronger. This amp works good with speakers that are 25 watts rms rated.

thanh Feb 18, 2020

Q

For 97 Supra does it need a separate battery connection for alpine amp?

m Jan 29, 2020

1 answer

A

We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question.

thomas Feb 28, 2020 (Staff)

Q

Will this combined with the Alpine ILX-W650 fit together in a 2011 Chevy Camaro convertible?

thomas Jan 15, 2020

1 answer

A

As long as you can find somewhere to put the really long wires.

jason Jan 15, 2020

Q

I have an aftermarket Alpine unit in my truck with Kicker speakers in the doors. It's plenty loud already. I'm looking for a little more base and sound quality at lower volume. Will this power pack do that?

kevin Dec 30, 2019

5 answers

A

If you're currently powering the Kicker speakers with just your head unit, then absolutely this will give better quality sound and response at lower volumes. As for more bass, there are so many variables that influence this. However, the higher RMS rating of this amp will send more wattage to the speakers before introducing noticable distortion which should allow for you to adjust your bass levels as you see fit. Keep in mind though, if your speakers have a max RMS rating exceeding 2.5 - 3 times the max RMS of the amplifier, OR the speaker sensitivity at 1w@1 meter is on the lower end of 80-90 range, you should look for a more powerful amplifier. I have used amplifiers rated for twice what the speakers are rated for, and because the amp never clips, there are absolutely no problems. As an example, I'm still beating up the same pair of JL 12W1s since 1999 only having to replace the surround when it starts dry rotting.

antonio Jan 01, 2020

A

The amp in itself won't give you more bass, but it will enable you to turn the bass level up without running out of power and damaging your speakers. I suggest enabling the loudness setting on your head unit. The loudness setting emphasizes the bass at lower levels and should improve your sound quality at a lower volume. Hope this helps!

duane Dec 31, 2019

A

The power pack is good option if you are looking for a little more power and it is amazing. You will definitely notice difference in power output. As far as more bass output it will depend upon the size speaker, if you have anything smaller than 5 1/ 4inch you will not see much bass output. Also your on settings on your stereos EQ play a big part too. If you are looking for a little more bass in your truck and have room for a powered subwoofer. I would definitely go that route in my opinion a JL Audio single 8in or 10inch is more than enough.

robert Dec 30, 2019

A

I added the unit in a Jeep Wrangler (2000 TJ) to drive fidelity across the range of low to high volume using an Alpine head unit. I was not looking for added bass. I am pleased that I got better fidelity and low distortion using this unit. I am using Polk audio speakers. Hope that helps a bit

nicholas Dec 30, 2019

A

This unit does not change the tone of the sound coming out of your speakers, it just makes everything louder, if you want more bass in your speakers, you will need to add a subwoofer or change the EQ. However if you are using factory speakers and you start pumping more power to them with this amp, you could blow out the speakers because they are not designed to be blasted with tons of bass. If you really want better sound, then you should look at putting in new speakers and depending on how power hungry they are, adding an amp and a powered subwoofer to your system.

travis Dec 30, 2019

Q

i want to use this to power my speakers with my alpine ilxw650 but i want to have a alpine mrv m250 for my subwoofer amp is this possible?

christian Sep 09, 2019

1 answer

A

Yep, all of these components are compatible. One of out advisors would love to help you get all the right gear for you install! https://www.crutchfield.com/support/ContactUs.aspx

thomas Oct 03, 2019 (Staff)

Q

Is this compatible, plug and play, with Alpine iLX-F309 HALO9 9"?

gordon Aug 19, 2019

1 answer

A

It is compatible with that headunit. There will be some wire connections that need to be made between the headunit harness and the vehicle integration harness. Depending on the vehicle, you may also need to run a dedicated power wire to the battery and a ground connection to the chasis. One of our advisors would be glad to help you get exactly what you need : https://www.crutchfield.com/support/ContactUs.aspx

thomas Sep 06, 2019 (Staff)

Q

Will this work with my 2011 Ram 2500 factory Alpine system?

gilbert Aug 16, 2019

2 answers

A

I don't think so.

jerry Aug 16, 2019

A

No, this is for "aftermarket" alpine radios not factory decks.

gary Aug 16, 2019

Q

Can the ktp-445A be bridged? I have a regular cab truck that only has door speakers.

steve Jun 28, 2019

3 answers

A

I'm not sure I only have it connected to my door speakers, with a powered subwoofer.

frank Jul 07, 2019

A

I don't think so because it is a plug and play type of set up use for the alpine head unit.

jerry Jul 04, 2019

A

no, it's plug and play, unplug your alpine radio from the harness leading to the vehicle and just plug this in between, if you want the bridgeable unit you'll want the KTP-445U

gary Jul 04, 2019

Q

I installed this amp on my 2003 Avalanche with an Alpine head unit. The truck came with the bose sound system. I have backpay noise coming through the speakers as I accelerate. The noise gets quieter if i touch the amp to a grounded metal part on the truck. The wiring is done correctly and I don't see any breaks in the wiring. How can I get rid of this noise? Thanks!

christopher May 19, 2019

1 answer

A

If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.

kristina May 29, 2019 (Staff)

Q

will this work for a BMW 135i? my old alpine amp stopped working and I was wondering if this one could do the job. Thank you.

amilt23 May 15, 2019

2 answers

A

If your old Alpine amp is similar to these amp's RMS watts output and has the same number of channels as these do, then I expect the PDR-F50 amp will be able to work in place of it and be able to use the same wiring too. The KTP-445A amp only works in very specific applications that will have a compatible Alpine radio installed as well My Bio: https://www.crutchfield.com/bio/Paul

jason May 28, 2019 (Staff)

A

The power pack is designed to work with alpine stereos, the pdr-f50 should be fine if you have low level outputs(RCA). If not, you will probley need a line output converter

john May 27, 2019

Q

hi,I want buy, but your item can shipping overseas?

marc loy May 10, 2019

1 answer

A

We do not ship over seas, Unfortunately.

thomas May 17, 2019 (Staff)

Q

How do you mount this to the back of the iLX-650?

william May 05, 2019

1 answer

A

The amp doesn't mount to your receiver physically (as in bolt to it). The amp has a fairly long cord that plugs in to your receiver directly. The cord allows you to mount the amp wherever it will fit under the dashboard. My van had some space above the radio with a stout bracket at the top. The power pack amp was easily secured with a few good quality zip ties (cable ties, tie wraps, what ever you prefer to call them). This amp driving (4) Kicker speakers will cleanly play very loud, much louder than I have ever explored. Stated another way - i have never maxed it out. Very satisfied with my purchase.

james Jun 27, 2019

Q

Can I use this with my Custom Autosound USA-230 radio?

stuart Apr 03, 2019

1 answer

A

I do not think so. It comes with an adapter for inputs and power that ties in with other Alpine radios

richard Apr 03, 2019

Q

I just purchased a KTP-445A and a CDE-HD149BT, what is a good set of speakers to use with this setup?

todd Nov 26, 2018

2 answers

A

That's a tuff question, not knowing what type of music you like and the make & model of your car. I always recommend JBL. I've used them in all my cars , My home theater and stereo music setups. Can't go wrong with JBL.

john Nov 28, 2018

A

I bought this Alpine head unit as a replacement for a failed OEM unit and connected it to the speakers that came with the car. Coukd not be happier with the Alpine unit. As for the speakers, first find out what size your factory speakers are or what size speakers you can fit in your application, then buy the highest quality in that size that your budget allows. :)

douglas Nov 26, 2018

Q

Alpine 265BT HU in a 2012 Altima, is this amp a plug and play??

tim Sep 23, 2018

3 answers

A

Not exactly sure what plug and play means for an amp. You do not have to run power or ground if that's what you mean. If you have an alpine head unit then it's pretty easy. The wiring harness that would plug into the back of the receiver plugs into the amp and there is an additional harness out of the amp that plugs into the receiver. I believe all that worked ok. The wiring bundles are pretty big and a little difficult to hide if you have a tight location.

paul Sep 25, 2018

A

Yes. Connect one wiring harness directly to your Alpine head unit and the other wiring harness directly to your cars speaker system. Both wiring harnesses are included and no additional wiring is required. There is no set up or adjustments necessary after installation.

thomas Sep 24, 2018

A

Couldnt say for certain but I would expect so. I had a similar unit and it coupled right to the alpine harness, with an out that matched the older interface with the vehicle wiring. About a 30min job mounted for me

seth Sep 24, 2018

Q

I recently bought a vehicle with an Alpine CDA-9847 head unit and was wondering if this will plug into it?

john May 03, 2018

1 answer

A

A small package that does a great job and yes it fits, add a couple subs and an amp for them and you'll be smoking

marty May 03, 2018

Q

Connect head unit to power pack,power pack to vehicle harness, eliminating the plug that you would normally connect to wiring harness from deck,how then does one use remote turn on from head unit and sub out?

david Jan 12, 2018

3 answers

A

I'm not sure what your asking. I bought an alpine deck with 2 preamp outputs along with this power pack. It does connect how you explained. Deck to power pack to wiring harness of vehicle. The kit through Crutchfield gives you a wiring harness which I believe is for the deck to the power pack (been awhile) If you are planning on hooking up an amp it cannot run through the power pack. It has to run through a preamp output. If this doesn't answer your question please ask me again. I'm willing to help out in anyway I can. Maybe word the question a little different.

vernon Jan 15, 2018

A

I still have my sub hooked up to them. Amp is separate for front and rear doors

cliff Jan 12, 2018

A

No, you don't eliminate wire harness from deck . The Alpine amp powerpack connect directly to the Alpine radio and the Alpine radio harness connect to output side of powerpack , then the radio harness to vehicle for remote ,speakers ,etc .

miguel Jan 12, 2018

Q

I'm considering purchasing this and an Alpine deck. It says it's "plug and play", but what kind of wiring do I need to purchase along with this Power Pack? Or will it get connected using existing wiring? Thank you.

david Jan 04, 2018

3 answers

A

Buy it and plug it in to the alpine deck. Nothing else to buy .

jackie Jan 05, 2018

A

If purchasing alpine deck with power pack it will come with wire harness to plug into alpine deck. No wires to splice.harness is about 2 ft long so power pack can be mounted under console.

ron Jan 05, 2018

A

if memory serves, it comes with the cable to connect from the Alpine Deck to the Power pack. It was truly plug and play. Then you get a vehicle specific wiring harness and/or power button control for your vehicle - meaning for steering wheel controls and to make the power antennae work.

gregory e. Jan 04, 2018

Q

If I use this on an Alpine CD Player, will the 6 RCA outputs still work? Meaning, can I use this to power 4 speakers, and use the 6 RCA outs to run additional amplifiers? Additionally, since this has no gain settings, it seems like I would use the Alpine radio volume as a baseline and adjust the gains on the rest of my amplifiers from there. Is this correct? Thanks!

john Dec 21, 2017

1 answer

A

Yes, you could use it like that.There shouldn't be any problems.

gregory Dec 25, 2017

Q

will this work on a CDE 9881 alpine head unit?

james Nov 04, 2017

4 answers

A

I use it with my CDE 102 which is very similar and it works great. I was told by alpine that as long as the unit is 2005 and newer and has a black power harness, that the power pack works.

brady Nov 05, 2017

A

I have the CDE 102, which is very similar and it works great. The information I received on the Power Pack says it works with most Alpine receivers after 2005 with a black power harness. Hope this helps.

brady Nov 05, 2017

A

Hey James, I'm not sure about the 9881. I had one of those a long time ago and it was my favorite head unit. I now have a newer unit and I don't know if the plugs are exactly the same or not. I don't want to tell you it will work if I'm not 100%. I'm almost tempted to say it will but eh. They do offer a 445U, but you would have to wire it up. I wish I could help you more but I haven't seen a 9881 in a long time. ??

travis Nov 05, 2017

A

That radio was built after 2005 so yes, it should work.

kevin Nov 04, 2017

Q

Will this work with a pioneer app 210 radio?

jesse Oct 17, 2017

1 answer

A

No, This amplifier will only work with Alpine head units. Alpine does make 445U I believe that will work with stock head units and other after market head units as well. It has the same amount of power and is the same small size. I hope this answer will help you. I have never went wrong with Alpine products.

cordie Oct 19, 2017

Q

I have this item and it is working fine. I know want to install a sex9nd traditional external amp. I know my head unit is capable but will I create a ground loop with the product working along with another amp?

cornelius Aug 30, 2017

2 answers

A

Yes it works fine.

jackie Jan 05, 2018

A

Goog question I'm not really sure, you could contact costumer service they should be able to help you.

craig Aug 30, 2017

Q

My head unit is an alpine CDE-121. Is this unit compatible with the ktp-445a?

frank a Jun 04, 2017

2 answers

A

I believe so.

andrew Jun 05, 2017

A

Should be, it connects in line from the head unit toward your speakers , using the same connectors. I recommend it if you want good sounding loud music without installing an amp.

william Jun 05, 2017

Q

What awg wire is wired from the amp to hook into the factory speaker harness? I'm looking to require using 12awg. Thanks.

greg May 23, 2017

4 answers

A

I installed this in my 97 Buick, I used all the factory wiring, upgrading to Rockford Fosgate speakers. I just used all the wires that came with the amp, I had no problems with distortion, even when my kid played his music loud. The harness is a bit long and required a little creative stuffing to get it to fit. Good luck

patrick May 25, 2017

A

No you don't need that heavy a gauge. It's overkill. The amp isn't that demanding. I used existing gauge, 16 I think. No problems whatsoever. It is not real loud but it certainly cleans up the music. I really like mine.

brian e May 25, 2017

A

If you are using it with an alpine head unit it will have direct connect plugs. No extra wire is needed

james May 25, 2017

A

As I recall, there is no power connection required. Simply unplug the harness from the head unit, plug that harness into the amp, the plug the amp harness into the head unit. Done. Simple as that, and really worth the low price.

john May 24, 2017

Q

static problems - after install, I get a lot of static out of my speakers. Any help to fix this?

william May 22, 2017

1 answer

A

If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer, or try our online support center: http://crutchfield.custhelp.com/app/answers/list/kw/.

kenneth May 22, 2017 (Staff)

Q

Can this amp be used to make a center channel for the front. Thus using the left positive and the right negative. Then using the other 2 channels for rear fill?

john Apr 30, 2017

2 answers

A

No, you cannot bridge the 445A, the 445U can be bridged

gary Jul 04, 2019

A

Unless you can change the settings in the head unit, there is nothing on the amp that allows any changes at all. It is just in line with the speaker and power connector.

benson Apr 30, 2017

Q

Were would one mount this amp in a 1999 Chevy Tahoe?

khristian Dec 19, 2016

5 answers

A

We put one in an 89 GMC Sierra Regular Cab. We replaced the factory head unit with an Alpine. There was plenty of room to secure this amp behind or under the head unit

joseph Dec 20, 2016

A

Behind the radio on top of the duct work secure it with what u can i used two sided tape and made a brkt on a dash brkt

donald l Dec 20, 2016

A

I mounted mine behind an Alpine ILX-007 in the dash of a 2003 Silverado.

clint Dec 20, 2016

A

It would fit behind the dash... that's the beauty of it.

matt Dec 20, 2016

A

I have an 02 silverado and was able to mount it under the console close to the cup holders

jonathan Dec 20, 2016

Q

I have a factory subwoofer in my MY06 Forester that's no longer connected and I have an Alpine iLX-007E. Will this KTP-445A work with my factory speakers, and will the boost negate the need for a subwoofer to give me more bass?

norton chia Dec 17, 2016

1 answer

A

You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you.

kenneth Dec 17, 2016 (Staff)

Q

will this work with an Alpine CDE-163 BT putting it into a street rod?

karen Nov 25, 2016

3 answers

A

Yes

scott Nov 26, 2016

A

Not sure exactly what your asking here but that until will work with that radio. If your asking if it will fit in the car, it fits behind the stereo in my 03 f250. It is actually pretty small

richard Nov 26, 2016

A

First off, unless you have plenty of sound deadening material installed, this may not be enough wattage to hear over the exhaust or the supercharger. Having said that, I cant see why it wouldnt.

shawn Nov 25, 2016

Q

I'm installing this in a 03' Accord along with an Alpine CDA-9886. I primarily purchased this because of its plug/play ease of installing, but I'm concerned about the 15amp fuse warning. My factory audio fuse is rated at 10A, but this indicates it requires at least a 15A fuse. If I install via simple plug/play will it still work, just at a lower output, or will I have to do wire splicing to get this to work at all? My Alpine HU is also rated at 10A.

ronald Nov 17, 2016

1 answer

A

It will work on the 10 amp fuse however at hard driving and constant full out power it "could" pop the fuse. I have yet to have a problem and mine is wired at the 10 amp configuration. Good lucky

adam Nov 18, 2016

Q

Will this work with an Alpine UTE-52BT?

clint Sep 19, 2016

2 answers

A

Should work with all Alpine head units. It is a must have if you upgrade your unit. The wattage that comes with new head units is not enough by itself.

ryun Sep 19, 2016

A

Yes it will.

michael Sep 19, 2016

Q

Does this work with the alpine ine-s920 hd?

hector Aug 22, 2016

1 answer

A

Yes should work just fine

kenneth Aug 22, 2016

Q

where would i hide the power pack in my fiero?

lowerider Jul 31, 2016

2 answers

A

Every car's dash space is different and I'm not familiar with the Fiero other than knowing that it's a midengine design. Does this mean that you have a trunk in the front and no firewall? Extend the wire harness if you need to and put the amp up there. I managed to sneak one of these amps behind the dash in my Miata. I had to use wire ties to secure it but it's in and doesn't rattle. The amp has generous wiring harness length and you should be able to find a place. The effort required to install it will be rewarded by the additional sounds you'll get from this amp. So, have you tried calling Crutchfield Support?

pat Aug 01, 2016

A

I put both of them, ( ya, I bought 2 for 2 different vehicles) under the dash. I used zip ties and little hope. I used it in my daughters 2000 VW bug and my 98 Chevy pickup.

eugene Aug 01, 2016

Q

Can you hook up 2 of them together?

lou lou Apr 08, 2016

2 answers

A

I would not think so. With the plug and play, it is just that. It will amplify you door speakers. I would go the route of a bigger 4 channel amp if you feel the need of more power. I can tell you this little amp does a great job on my 4 door speakers.

corey Apr 09, 2016

A

You can't hook 2 of them together.

terry Apr 09, 2016

Q

How will this work with a 2016 base V6 Mustang 6 speaker stereo? Wiring?

ian Mar 06, 2016

2 answers

A

I did a quick check in Crutchfield and it appears the 6 speaker system is (2 front door speakers + 2 tweaters) and two rear deck speakers. Typically, the tweaters are fed off of a filter from that is between the door speaker and the tweater. As such, you still have a four channel system which is what the Alpine Power Pack is designed for. So, I think the Alpine amp will work with your system. My application for this amp was in an old Jeep to power the dash speakers and overhead speakers. I used a separate amp to power subwoofers. I'll have to qualify my answer in two ways. One, simply speaking, this amp will work, is relatively easy to install and can drive your stock speakers better than the stock unit can. Two, while this amp worked ok, I don't think it has enough power to drive really deep sound at moderate to high volume levels. I would recommend deriving low level signal outputs, and put a high quality 5 channel amp and replace the speakers. If you want to take it in steps, you could install the Alpine power pact and then add a separate amp/subwoofer later. Hope this helps.

roger Mar 08, 2016

A

If you are adding this to an existing sound system you might have problems. I installed this unit at the same time as a new Alpine radio. The wiring harness to the radio plugged right into the output of the amp, then the supplied cord plugged into the input end and into the radio. Unit was excellent, it was put into a Jeep Wrangler with the top off and had more than enough power to overcome road noise. You might have to do some creative wiring to a ford radio.

james Mar 07, 2016

Q

I have a 2011 Chevy traverse LS with the oem radio, I just bought Polk audio speakers to replace all the doors... I wanted to know if this amp would help or if I even need it? Would it work with the stock radio?

esteban Mar 03, 2016

6 answers

A

First off, there is two versions of the power pack. One is the KTP-445A for use with compatible Alpine head units. The other is KTP-445U which is universal. In your case, you want to use the universal power pack. *Will it help? Well, it's an amplifier, so it's gonna boost the power going to you're upgraded speakers and improve your overall sound and volume. (if they're installed properly) *Do you need it? Yes, if you want to experience the actual benefits of an aftermarket speaker, but they'll still work without it. *Will it work with the factory radio? It will if you hook it up correctly. I should mention that some (if not all) factory radios have a pre-programmed EQ, so the factory speakers can sound their best. In other words, they give out a modified signal, unlike an aftermarket radio which gives out a pure, untouched signal. There's products to address that, like the JL Audio Clean Sweep for example. But you should still be able to connect an Alpine Power Pack directly to the factory radio without one.

gilberto Mar 27, 2016

A

It sure will.I was limited on space and this was a perfect fit and it powered up front and rear speakers which paired well with the 2 10 inch subs.The techs at Crutchfield are amazing.Enjoy the sound.--Marty

marty Mar 04, 2016

A

It's plug and play with the Alpine head unit I purchased. I do not know if it is compatible with your stock radio. The Polk speakers will add quality to your sound, it won't add power to your system. My guess is that the oem radio is sufficient to most needs. The alpine amp is just a booster, not a full blown unit. Most later model automobile sound systems already have an amp bigger than the Alpine unit.

gary Mar 03, 2016

A

This amp is specifically for Alpine receivers. It will not work with any other headunit. For a universal amp, try the KTP 445U amp. http://www.crutchfield.com/p_500KTP445U/Alpine-KTP-445U-Power-Pack.html

tyler Mar 03, 2016

A

If you bought the universal version of this it will work with a stock radio. You will need to dplice into the factory wiring. You can tell a big difference with this littke amp

corey Mar 03, 2016

A

Yes it will work. It is worth the money big time!

brian Mar 03, 2016

Q

I was told that this amp can be used with KDCX300/Kenwood-Excelon? Is this true?

tony Feb 25, 2016

2 answers

A

No, the 445A is alpine specific and will not plug into a kenwood deck, you'd want the KTP-445U

gary Jul 04, 2019

A

My understanding is there are two versions of the power pack. I bought the version that mated with my alpine head unit. You want the general version. It added just enough to my setup to be a satisfying blend with my subwoofer.

ronnie Feb 27, 2016

Q

Would purchasing an Audio Control LC6i with this make for a better install down the road when adding a mono amp to a sub?

david Jan 27, 2016

2 answers

A

I have a 2016 Honda Accord Sport. I am leaving the factory stereo. Is there plug and play harnesses for it?

griffin Nov 07, 2019

A

No. First of all; the Alpine KTP-445A model is for use with compatible aftermarket car stereos only. Unless you have a compatible Alpine, you'll need to use the KTP-445U model instead: http://www.crutchfield.com/p_500KTP445U/item.html This power pack offers "Speaker Level Inputs" so an external Line Output Converter is not required to get the audio signal into the amp. If you decide to add a subwoofer and the amp you select does not offer the speaker level inputs, you can use the Audio Control LC2i converter to supply signal (RCA) and remote turn-on for the amp: http://www.crutchfield.com/p_161LC2I/item.html I hope that helps! My Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=5

ryan Feb 01, 2016 (Staff)

Q

Will this work on a Pioneer AVH-X4700BS? Meaning will they simply plug into the Pioneer harness?

cbos1226 Jan 07, 2016

3 answers

A

I am not sure. i bought mine to power a new Alpine receiver because it was definitely plug n play. I would check and see if they have a pioneer to alpine harness converter. At at the same time, i put the Alpine power pack in with the receiver, Crutchfield sent me a factory to alpine harness converter that made the receiver plug n play. Best i can offer.

vincent e Jan 08, 2016

A

I don't think so alpine does not have the same connector Enter an answer to this question.

mark Jan 08, 2016

A

No it's a plug and play for alpine

david Jan 08, 2016

Q

I want to install this with my OEM head unit (2015 RAM 1500 with 5" touchscreen) does this amp have high level inputs ? or do I need to cut down the signal from the HU?

larry Dec 18, 2015

2 answers

A

Just plug in and play

alex Dec 26, 2015

A

I would contact a Crutchfield advisor. While I think it is designed take take in a high-level input and should work with any speaker output on a radio, Alpine says it is designed to work with certain Alpine head units from 2005 and later. Honestly, I think you'd be better off with an Alpine 4-channel amp that you can install under the seat. Most of them can take a high-level input and will have better performance than the Power Pack. With either type of amp, you still need to run a power wire from the battery, so I don't think you're saving anything by choosing the Alpine Power Pack.

richard Dec 19, 2015

Q

Hi there, my question is this alphine amp compatible to my head unit Pioneer DEX-X6700BS? Thank You..

lynon Dec 04, 2015

1 answer

A

Yes. Your receiver has 6 sets of pre-amp outputs and will work great with this amp.

jeff Dec 04, 2015 (Staff)

Q

I have a UTE52BT and just bought a KTP-445A to drive my infinity speakers. When I turn the volume up past 20 the sound cycles to 0 then up to 20. It then goes to 15 and stays there. I tried turning off the power IC. Anyone have this issue and how to fix it?

edward Oct 05, 2015

1 answer

A

If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: http://community.crutchfield.com. Or try our online support center: http://crutchfield.custhelp.com/app/answers/list/kw/.

kristina Oct 05, 2015 (Staff)

Q

How to install in a 2012 camaro using factory stereo?

corry Sep 22, 2015

1 answer

A

For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.

kristina Sep 22, 2015 (Staff)

Q

What is the difference between the KTP-445A and the discontinued KTP-445? I was looking at a newer model head unit which says it is compatible with KTP-445A. I already have the older KTP-445 and wondering if it will work or do I have to buy the newer power pack.

cabot Sep 20, 2015

1 answer

A

Thanks for your question. For information on comparing two or more models I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences and help you make the best choice for your system and your budget.

kristina Sep 20, 2015 (Staff)

Q

will this amp connect to my f-150 xlt?

gilbert Jul 11, 2015

1 answer

A

For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.

kristina Jul 12, 2015 (Staff)

Q

It looks like adding the KTP-445a amp to my existing ilx-007 is pretty straight forward - just plug and play. How do I slide out the 007? The original install was done by a local shop and I don't think I received the "key" to uncle I the unit from the cage.. How can I slide out the 007?

chris Jul 08, 2015

1 answer

A

If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: http://community.crutchfield.com. Or try our online support center: http://crutchfield.custhelp.com/app/answers/list/kw/.

kristina Jul 10, 2015 (Staff)

Q

will this amp work with a 2009 bmw 128 i factory wiring?

big d Jul 07, 2015

1 answer

A

For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.

kristina Jul 07, 2015 (Staff)

Q

Is there ANYWHERE to purchase just the wiring harnesses (complete with connectors)? I have the KTP-445A power pack unit but it didn't come with the plug-n-play wiring. Thanks!

david Apr 29, 2015

1 answer

A

For the wiring plug you will need to contact Alpine directly: http://www.alpine-usa.com/support/parts

jeff May 01, 2015 (Staff)

Q

OK, I have an Alpine stereo which will work with this amp, but it also has an "installation note" saying they recommend a direct battery connection. Which wire needs to be cut and spliced? Is this difficult? My Jeep Wrangler only has a 10amp factory fuse so guessing it is not going to work well if I keep it directly wired.

kevin Apr 04, 2015

1 answer

A

For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.

kristina Apr 05, 2015 (Staff)

Q

Hard to find a matching full set of speakers for my 2000 Dodge. (Aparently no Alpine will fit front doors.) I finally settled on 6X9 JBL front, 6 3/4 JBL back) All those speakers are 3 ohm. Anyone using this set up? Is Amp getting hot mounted behind deck in dash?

max Mar 30, 2015

2 answers

A

Amp does not get hot...and I have it stuffed in the dash of a jeep tj. Great product. Would recommend. As far as speakers, I always go with a company that only makes speakers. Such as Infiniti or Polk audio. That's my preference.

lance e Apr 07, 2015

A

I installed mine in a 2008 F-150 and basically just laid it in the open space in the dash behind the CD receiver. I live in Florida and have experienced no issues with it in almost 2 years. Sorry, I can't speak about your impedance issue but it seems close enough to not matter.

glenn Apr 02, 2015

Q

How can I use this with my 2007 Acura TL Type-S ?

mr. curious Mar 18, 2015

1 answer

A

For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.

kristina Mar 19, 2015 (Staff)

Q

Would this amp go straight into a 2014 Malibu without the upgraded pioneer sound system or do you need converters of some kind? Thanks

traykun Feb 27, 2015

1 answer

A

For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.

kristina Feb 27, 2015 (Staff)

Q

Is this compatible with the new Alpine iLX-007 head unit?

richard s Dec 02, 2014

1 answer

A

I forwarded your question to an Advisor and they responded with the following: Yes, the KTP-445A amplifier is compatible with the Alpine ILX-007 head unit. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat.

kristina Dec 05, 2014 (Staff)

Q

can I use this amp with this reciver? Kenwood KIV-BT901

ryan Nov 12, 2014

1 answer

A

I forwarded your question to an Advisor and they responded with the following: No, you will not be able to use that particular model. You will need the Alpine KTP-445U (500KTP445U) to use with your Kenwood receiver. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat.

kristina Nov 14, 2014 (Staff)

Q

Can i only use this in alpine head units or is there a way to make this work in a kenwood head unit?

ryan310 Nov 12, 2014

4 answers

A

I have been told it can be used with any unit but it requires knowledge of which wires go to which point. Alpine used to make a universal amp just like this one that had open wiring

joey Nov 12, 2014

A

You can make it work by way of a universal adaptor that crutch field sells

joe Nov 12, 2014

A

You would need the wiring diagrams for both. But it should be possible, maybe with an adapter. The size of it makes it really convenient to hide.

benjamin Nov 12, 2014

A

When I boug mine there were two different power packs. One works only with alpine units, the other works with any unit.

philip m Nov 12, 2014

Q

I have this is there any way to adjust the gain and settings or is that only on the ktp 445u?

travis Sep 20, 2014

3 answers

A

Since I installed this over a year ago, I can't be for sure but I do not recall any form of channel adjustment on my model.

randy Sep 21, 2014

A

There aren't any gain settings on the unit itself Travis. It's just a straight 45 watts per channel to your speakers. The best sound will be if you have speakers that are matched to that. Or closely matched. I bought an entire package from crutchfield which included four infinity speakers that are around that wattage. I prefer to always buy speakers from a company that just manufactures speakers. Infinity, Polk audio, Altec Lansing, etc. Hope this message helped. Lance

lance e Sep 21, 2014

A

There are no adjustments settings on this amp. I will say that the default settings on this would be equivalent to a "high" setting on an amp that is adjustable. On my INE-S920HD head unit, before turning the head unit's gain to the lowest setting, the volume would max out at volume level 10 (the volume goes to 40 or 50). With the gain all the way down it screams at level 20. I am running this amp with eight speakers. 2 5" polk audio db501's per channel (8 speakers total at 2ohms per channel). This little amp is bomb proof, rock solid, and sounds amazing.

tony m Sep 21, 2014

Q

Do you need an Alpine reciever to use this?

ben Sep 14, 2014

6 answers

A

yes you do. the unit plugs into the alpine wire harness from the head unit. I would recommend buying a head unit wih this power pack it all works exellent together. No running power wires, speaker wires ect. if you purchase a traditional style amp. Hope this helps

chris Sep 15, 2014

A

No you do not you can either hard wire it to your receiver or buy an adapter plug the amp comes with directions on the wiring process that is very easy to understand

joe Sep 15, 2014

A

No I run it off a JVC receiver.

dustin j Sep 14, 2014

A

Nope, it has RCA type inputs for the preouts of any receiver. connects just like any other amplifier...

paul Sep 14, 2014

A

Yes u need an alpine receiver to use this

derek Sep 14, 2014

A

It only works with alpine

david Sep 14, 2014

Q

I'm gonna install this in my All New Kia Picanto with Alpine CDE-123 head unit. I'm confuse with this statement in Product Overview section : "If your receiver's power circuit is not protected by a 15-amp or larger fuse, you'll have to run a separate power wire to the battery." In my car's manual, there's a table containing instrument panel fuses (driver side fuse panel). One of fuse labelled AUDIO with 20A rating. In my CDE-123 manual, there's a connection diagram. In the back of the head unit, there's a FUSE HOLDER (10A) just beside the power supply conector. Do I have to run a separate power wire to the battery? Is it : battery -> new power cable + 15A fuse -> KTP 445A -> Head unit ?

ferdinan May 02, 2014

4 answers

A

Good Morning, My installation did not require any seperate wire to the fuse panel or battery. I connected the amp to the factory wiring and the stereo (apline) to the amp. pretty simple install.

alejandro May 03, 2014

A

No, just plug it in and your fine

jason May 02, 2014

A

No I did not run a separate wire, the radio power is fused. I have not had any issues.

kevin May 02, 2014

A

I'm confused in which fuse does the product overview refer to? Is it the 20A on instrument panel? or 10A on the Head unit fuse holder?

ferdinan May 02, 2014

Q

Can I install this amp with Alpine CDE-123 ? Alpine CDE-123 manual said we can use KTP-445, but it has been discontinued.

ferdinan Apr 30, 2014

1 answer

A

Yes. This Power Pack will work with the Alpine CDE-123 CD Receiver.

jeff May 01, 2014 (Staff)

Q

Hi there- My mazda has 6 speakers and 2 tweeters..will this power all ? Is there is max number of speakers it can support ? Any input is appreciated !!

telugodu Apr 25, 2014

1 answer

A

For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.

kristina Apr 25, 2014 (Staff)

Q

Spline cde-133bt produces a clipping signal on volume level 20 out of 35. So that would mean this too would clip sind thatlevelas well?

batman Apr 23, 2014

2 answers

A

EQ settings are too high probably in the bass ranges and/or your speakers aren't rated to handle that much power

gary Jul 04, 2019

A

im not sure

lawrence Apr 25, 2014

Q

I ordered a power pack and I was curious if I could just plug it in and go or if I had to unhook my factory amplifier I have a 2010 dodge ram with alpine factory sound system. I updated to alpine receiver and 6.5 component alpine type e door speakers? Advice please?

david Feb 27, 2014

5 answers

A

You will have to bypass the factory amplifier to use this product. See the product research section on this product's page at Crutchfield's website.

richard Dec 19, 2015

A

I would imagine the techs at Crutchfield could answer this better than I, but I believe you cannot connect amplifiers in tandem without some seriously advanced circuitry. The Alpine power pack should take care of your needs anyways, so go ahead and disconnect your factory amp.

brad Mar 03, 2014

A

I baught one and i unplugged the wiring harness from the back of the stereo into the powerpack and then the powerpack to the stereo. It cannot be any easier.

victor Feb 28, 2014

A

Hi David, I did not get to use this product. I bought it with the guidance of Crutchfield tech support and I feel I did not get the correct advise. when I bought the unit I gave the make and model of my car with some other details. Since I had done all the rewiring for the Alpine head unit before I was told that I could just plug it in line with my set up. What they overlooked was that I already had a factory installed amp. When I installed the power pack it blew out a couple of circuit breakers because both amps were on line. I disconnected the power pack and returned it and continue to use the factory amp with the Alpine head unit and it works great. Sorry I could not be more help.

felipe Feb 28, 2014

A

U cannot run a 2nd amp in your truck. ...short of some really fancy wiring that a electronics engineer would have to do some head scratch'n. My 99 dodge with the infinity system was a bleedn nightmare trying to hook it up. Finally, I pulled the amps(located on the speakers) replaced everything w after market wires, speakers, head unit, and amp. The good news is, you will absolutely love the sound. Best of all my trucks is the alpine amp setup. Good luck JJ

jack Feb 28, 2014

Q

Will this work with the alpine CDE-HD148BT head unit?

benny Jan 31, 2014

2 answers

A

I have an 07 gmc sierra classic. I'm going to purchase an alpine head unit to replace the factory radio. Will this power pack be compatible with my truck?

robby Apr 20, 2014

A

For details on compatibility or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.

kristina Jan 31, 2014 (Staff)

Performance
RMS Power Output (Watts x Channels)	45 x 4
Peak Power Output (Watts x Channels)	90 x 4
Power at 2 Ohms (Watts x Channels)	N/A
Bridged Power (Watts x Channels)	N/A
Minimum Impedance Bridged	N/A
Minimum Impedance Unbridged	2
Minimum Impedance	2
Best Frequency Response	20-20k Hz
THD at Rated RMS Power	1%
Signal to Noise Ratio	84 dB
Input Voltage	14.4v
Features
Amplifier Class	D
Low-Pass Crossover Frequency	N/A
Low-Pass Slope (dB/octave)	N/A
High-Pass Crossover Frequency	N/A
High-Pass Slope (dB/octave)	N/A
Bass Boost	No
Bass Boost Frequency	N/A
Fan Cooled	No
Fuse Rating	15
Speaker Level Inputs	Yes
Preamp Outputs	No
Width (inches)	7-7/8
Height (inches)	1-1/2
Depth (inches)	2-9/16
Parts Warranty	1 Year
Labor Warranty	1 Year

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Alpine KTP-445A Power Pack

Compact upgrade amplifier for your Alpine receiver — 45 watts RMS x 4

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