Alpine KTP-445 4 Channel Amplifiers at Onlinecarstereo.com

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Features

Add higher output and more dynamic response with this easy-to-install head unit power upgrade.
The KTP-445 amplifies the head unit power output, resulting in a 150 percent power increase over the original power from the head unit’s built-in amplifier.
Its plug-and-play installation.
No additional wiring or special tuning required.
High/low gain switch allows for proper gain settings, whether or not a subwoofer is part of the system.
Mounts under dash.
Dimensions: 7" x 2-1/2" x 3/8"

*Warranty: 1 Year Onlinecarstereo.com warranty.

1 Year warranty from Onlinecarstereo.com implies that repairs must be returned to Onlinecarstereo.com, not the manufacturer. More information can be found in our help section under returns & warranties.

Customer Reviews

Chase B From Washington
I was a little afraid of buying this at first, but im gld that i did! This thing is amazing. I put it in with my stock front speakers in and they were freaking out. My rear 6x9s loved it though. I was able to turn up the volume 5 more notches. I forgot that i unplugged my subs and it still bangs. Im so glad that i bought this. A little hard to find room though!

Andrew From Yakima, WA
I have a Alpine CDA-9886 Which by itself is an awesome head unit. I wanted a little more power that the 18 watts R.M.S. that unit supples. The Alpine KTP-445 is a great unit it adds more dimension to the sound stage in the car. The mid and high volume levels are a lot louder. Great improvement. I am running 2 Alpine Type S 6 X 9's, 2 Alpine Type R 6.5 door speakers Two 3.5 Infinity Kappas in the dash. 2 Hifonics Brutis series 12" subs. Their is only one thing I do not like about it. Their is a pop sound when you turn the stereo on. It's very slight like the way the old school amps were when you them on. Great amp for the money. Lots and lots of wire. this thing is 1-1/2 X 7-1/4 X 2-3/4. I have a '05 dodge Neon and it was hard to find a spot to put it. Overall 4-1/2 stars out of 5. It would have got a 5 Star rating if it did not 'pop' when you turn it on.

Jim From Reno Nv
A nice little amp add on,I like the small compact size and its simple wiring directions.It adds just enough power for my truck that only has 2 door speakers for now.In the future I will add a small sub and another amp for better sound.Overall a great buy.