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Alpine KTP-445
8.2 out of 10

Alpine KTP-445

Add higher output and more dynamic response with this Read more

Great Deal: $129.99

Reviews and Problems with Alpine KTP-445

Showing 1-10 of 330
Overall 6
6.0

Does alright

JRubber, ABT Electronics
4 weeks ago
  • Excerpt: This amp has always performed ok. There's other amps in the market with a similar/identical footprint that output more usable power. The build quality is acceptable, but clearly not as nice as the comparable Kicker/Fosgate/JL amp.
  • Pros: Compact, Easy to Install
  • Cons: Poor Quality
  • Read full review
Overall 9
9.3
Design 10
10
Value for money 8
8.0
Features 10
10
Durability 8
8.0
Usability 10
10

Sound Quality

FerdieM, Sonic Electronix
1 April 2016
  • Conclusion: If you want to improve the sound quality of your car stereo, buy this product. Gives the speakers the extra power to bring out rich sounds, without blasting the neighborhood.
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Overall 10
10
Design 10
10
Value for money 10
10
Features 10
10
Durability 10
10
Usability 10
10

Soooo worth money

Kelvin, Sonic Electronix
13 March 2016
  • Conclusion: Who wants another big ass amp in your trunk? I got this lil thing stuffed behind my dash and dude.. It pushed out a lot of power and uses stock electrical from head unit. It gets loud.. My speakers are 50watts rms and even they get over taxed at high volumes..
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Overall 10
10
Design 10
10
Value for money 10
10
Features 10
10
Durability 10
10
Usability 10
10

Great sound

Jose, Sonic Electronix
18 February 2016
  • Conclusion: This was a great addition to my car, I was on the fence about getting it but now that I have it I wish I would have gotten it sooner. It is very easy to install the hardest part was finding a nice location to mount the unit. It did wonders for the sound quality in the car.
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Overall 10
10
Design 10
10
Value for money 10
10
Features 10
10
Durability 10
10
Usability 10
10

great amp!

Bob, Sonic Electronix
14 December 2015
  • Conclusion: I recomend this amp for a bunch of reasons really but as far as power,build quality,etc. This thing rocks full range wise. I use these in many of my dc audio systems and yes, I kept the first one for myself.
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Overall 10
10
Design 10
10
Value for money 10
10
Features 10
10
Durability 10
10
Usability 10
10

Alpine

Kevin, Sonic Electronix
11 December 2015
  • Conclusion: I like it....I thought it didn't work at first. ...but I had the defeat turned off on the stereo ....I didn't know I had to do that ...but I'm happy with the product...alpine has a lot of good products
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Overall 10
10

Such a powerful amp for the compact dize.

Jerry, Crutchfield
6 December 2015
  • Summary: Excellent amp to my existing factory radio. My radio is 300% clear and loud with gain turned down to zero for my factory speakers.
  • Pros: Compact, easy to install in your dash console. Plug and play remote. Other words, I did not need to attach the remote wire.
  • Cons: None
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  • See Product at Crutchfield ($129.99)
Overall 10
10

Compact Amazing Amp

Tanner, Crutchfield
30 November 2015
  • Summary: This product works perfect. I have it paired with my alpine head unit and it really makes my aftermarket door speakers shine. So much more clear at louder volumes and a small increase in mid bass as well. pair with any aftermarket door speakers that can handle 40-50 watts rms and your golden.
  • Pros: quick and easy install. very powerful for how small it is
  • Cons: Due to limited area behind stereo unit i had to mount it in the glove box. thus it takes up half of my glove box
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  • See Product at Crutchfield ($129.99)
Overall 10
10

I have a alpine 9425 &6×9 Rs nothing but awsome,Now its time to upgrad

David, Crutchfield
23 November 2015
  • Summary: I have loved my 9428 and 6×9 for about 10 yes. Time to HD149BT & 6×9R the processors are top notch have to get more, but Im on ssi so 1 peace at a time. Please never change. I will only buy Alpint. Thank you. Always wanted you cence I was a young boy. Thanks for all the great music.
  • Pros: No cons,it is best audio I haver heard in my life,a please dont make to many childish changes, like flickering lights this is not a toy factory, you dont make toasters or disco balls,you have the best processor's in the business. Dont screw it up ,like Sony did I the mid 90's,they have there fing...
  • Cons: No cons even after all this time,time now for the hd149bt&hopefully a bit more.But no cons here. Thank you
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  • See Product at Crutchfield ($129.99)
Overall 10
10

Great upgrade

Frank D, Crutchfield
18 November 2015
  • Summary: Easy install, fit in glove box, 4 channel amp improved the output of the Pioneer 4100NEX head unit with RCA plugs. After setting the optimal level gain, the sound was full and rich. Using Kicker aftermarket in front and rear.
  • Pros: Ease of install. No need for separate power supply. Rich sound gains.
  • Cons: Lower power output than larger amps.
  • Read full review
  • See Product at Crutchfield ($129.99)
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