Questions & Answers

Q: QuestionHow much power can this amplifier handle?

• A:Answer This amplifier can handle up to 45W RMS (continuous) @ 4 ohms or 2 ohms. Up to 90W continuous bridged.

Q: QuestionWhat is the bridged impedance of this Alpine amplifier?

• A:Answer The bridged impedance of this amplifier is 4 ohms.

Q: QuestionWhat kind of speaker-level connectors does this amplifier have?

• A:Answer This amplifier has RCA and auto sensing speaker-level connectors for simple installation.

Q: QuestionDoes this amplifier have a high-pass filter?

• A:Answer Yes, this amplifier features a 12dB/Oct high-pass filter for powerful sound.

Q: QuestionIf speakers (like JBL GX963) are rated for higher amps than the amp, will that result in more distortion at higher volumes? Would I be better off with a larger amp?

Asked 9 years ago by Ross.

• A:Answer This amp has real power I turned it down so as not to blow my kicker door speakers that can handle much more power.

  Answered 8 years ago by TLeeVerified Purchase

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Q: Questionhow easy would it be to jump this off my 600w amp and hook 2 6x9s to this amp? i have a bigger wire so plenty of power.

Asked 6 years ago by shawn.

• A:Answer Many people focus too much attention on the rear speakers. Rear speakers are for "rear fill". If your front speakers are able to create a good front stage and proper imaging AND be able to play clearly at high volume levels to balance out the subs, rear speakers are usually not necessary. Take out the 6X9s that reside in your rear deck. If you feel the need to put rear speakers later on, go with something small like a 5.25 in a coax.

  Answered 6 years ago by TheOGofLogicVerified Purchase

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Q: QuestionCan this amp be mounted in the fairing on a Harley Davidson?

Asked 8 years ago by Bdogg.

• A:Answer Yes it can. It is mounted in mine and it sounds great.

  Answered 8 years ago by JerryVerified Purchase

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Q: QuestionIs this amp compatible with a 2013 ram 1500 with a factory radio

Asked 6 years ago by Hawaii.

• A:Answer I saw someone reviewed this amp on YouTube and said the ALPINE KTP-445U the U stands for universal and that will allow connections with factory amps..I'm lead to believe the A is for Alpine units. Cheers!

  Answered 5 years ago by JoeCader

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Q: QuestionIs this amp bridgeable making it a two channel amp with more power?

Asked 9 years ago by Hollie.

• A:Answer Yes you can bridge this amp to push 90w rms @ 2 ohms

  Answered 9 years ago by ShawnS

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Q: QuestionCan this amp be bridged at 2 ohms for 90 watts rms?

Asked 10 years ago by Anonymous.

• A:Answer Sure can. You don't quite see 90wrms out of each channel, but 75-80 is not unheard of. Works great to power a beefier pair of speakers without going into a full 4ch amp

  Answered 10 years ago by StallationGuy

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Q: QuestionDoes this fit my 2015 Honda civic

Asked 1 month ago by Anonymous.

Q: QuestionAre there units of this item in "good" status available?

Asked 3 months ago by Hans.

Q: QuestionThis product fits Tacoma 2018 with no bbl sound

Asked 3 years ago by Anonymous.

• A:Answer Yes

  Answered 2 years ago by JayyVerified Purchase

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Q: QuestionWith the RCA's does this mean I don't have to run speaker wires to the amp? Do i just plug the RCA's to the amp then to the back of the stereo? Or do I need to do both? Thanks

Asked 3 years ago by JScribn1.

• A:Answer The rca's provide the input voltage needed for the amp to produce sound. The amp must be connected/wired to speakers as well. How can speakers produce sound without being connected to the amp? They cant.

  Answered 3 years ago by Anonymous

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Q: QuestionIs a 15 amp fuse OK to run this amp and the radio or do I have to run a cable to the battery?

Asked 3 years ago by KarlHungus.

• A:Answer You're good using the 15AMP fuse. Anything LESS than 15 AMP you have ro run a cable.

  Answered 3 years ago by CharlieVerified Purchase

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Q: QuestionWould you be able to put this in line with a powered sub? does the powered sub come with the amp range it can handle?

Asked 4 years ago by Outlaw.

• A:Answer It can be used in conjunction with a powered sub. I have the speakers running through the power pack and use the dedicated sub channel for the powered sub

  Answered 4 years ago by GoofymonVerified Purchase

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Q: QuestionWhat are the actual dimensions of this amp? The listing does not look correct.

Asked 5 years ago by BR549.

• A:Answer Its small it fit behind my deck in the dash

  Answered 3 years ago by Speakers

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Q: QuestionDoes this amp mount to the alpine ilx-w650?

Asked 5 years ago by Steve.

• A:Answer Yes... i've had this amp installed behind the ilx-w650 in a 2011 honda civic powering 4 kicker KCS660 speakers.... thinking about changing the speakers though because the amp is turned down to between 1/4 - 1/2 on the gains... that's about all the speakers seem to be able to handle. Also, the HPF works great.

  Answered 4 years ago by Lyle

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Q: QuestionI'm into saving a few dollars as I'm building a stereo system for 09 Tacoma, my question is if get your open box alpine U445 amp. What warranty will I have?

Asked 5 years ago by Roadspoke.