Customer Reviews

KTP-445 - Alpine 4-Channel Head Unit Power Pack Amplifier

5 star:		(23)
4 star:		(4)
3 star:		(1)
2 star:		(1)
1 star:		(1)

 

 

Added this to a CDE-102 in an '08 Altima Sedan. Still running stock speakers.

Pros: Installed in 20 minutes, great improvement in sound levels and mid-bass especially at normal listening levels. No cutting/rewiring.

Cons: Slight amount of background noise between tracks. Not noticeable during any type of playback, just in the silent parts in-between.

Overall: No brainer upgrade for any alpine head unit. piece of cake to install and the improvement (for the money) is outstanding. Can't find a decent amp for $100 to run 4 speakers. This does it easily. Actually looking forward to replacing the stock speakers someday (without the wiring hassle).

More than what i had expected, hooked up to a cda 9887 and made it sound even better. Didn't want the hassles of running seperate wires for amp so purchased this, plug and play and extremely simple to install. Upgraded speakers and am impressed with the sound quality.

Man, where to start. With this amp, you don't need the expensive amp kit. You don't need to run any lengthy wires throughout the car. This amp fits behind the dash out of site.
This amp has a lot of power for the small size. I was so amazed with the sound quality this amp has. It has deep lows, and clean highs. It produces nice sound in my SPS-600c and KFC-6982IE.
The amp compliments nice with my 12" Type R and MRP-M500. Now I can turn it up loud with no distortion.

I have Alpine's CDA 117 HU, KTP 445 power pack, SPG-17cs components, 6x8 full range rears and completely dynamated doors. I was a bit skeptical of this "power pack" at first because I have always had big amps for my components with headroom to spare in terms of power. At only 45rms this little amp is truely respectable and can really produce a rich soundstage. I originally had it powering rockford fosgate 6x8 two ways in the front doors. While I could tell there was a power increase, it made the speakers louder in a bad way. Way too bright and pitchy. My point is that when my SPG components finally came, this little amp really showed me what it can do. 45rms from this thing is really all you could ask for- even up the higher ends of volume. It is powerful enough to make those components absolutely shine. Rich and full mid bass with crisp response and accurate detail. There are details in CD's that you will never be able to experience without the right setup. I kid you not, this little amp is very good with the right stuff to go along with it. If you have yet to buy a HU, do yourself a favor and get the CDA 117- that brown burr decoder is ridicuously good! Simplicity, size, price and above all genuine sound quality potential make this a hot item. One key note is that with a low quality deck, low quality speakers or no insulation- all you are going to get is a little more noise from your speakers. But if you do it all right, this amp can seriously satisfy your appreciation for rich, detailed music. Ive read this thing will only work when connected to FOUR speakers AND it is not able to be bridged to power just your components (I had that idea) But even at 45rms this thing kicks butt. Alpine made a believer out of me.

This little device made a bigger difference than i though. Rather than spending 300 for an amp, i paid $100 for something that does just as good in my opinion. glad i saved money and got this. You wont be sorry you purchased this. Makes listening at higher volumes more tolerable because it knocks out static and provides the full and detailed sound. Easy to install as well!

I bought this with a new Alpine Stereo and installed them both at the same time. Installation could not have been easier. Simply unplug the wire harness, plug in this unit and plug the wire harness to the other end of the amplifier and you are done. The sound quality was much better than the the stereo alone. The added bonus is there is no wiring, like adding a new amplifier, the hardest thing is finding a area to screw it to.

For anyone who wants a simple solution to increasing power to decent quality speakers with out the hassle of wiring, this is the way to go.
I am amazed at the difference.
Alpine does it again!

I did a lot of research before purchasing this amp. The installation of this amp is very easy. You just unplug a connector from the back of the Alpine head unit and plug in the amp. It was a bit tricky to hide the amp in a 1998 Honda Civic. I found that it fit perfectly inside the center console behind the drink holder. Overall great item and highly recommended.

This was quite a boost to my new alpine deck. I had not expected as much of a sound quality improvement as it delivered. Pretty impressive in that regard.

This little dynamo is perfect if you are looking to power high quality component speakers. I am not running this through an alpine head unit but it still works with some creative wiring. Sounds great. Although the new power is producing some pretty bright highs so I will be replacing my type-s speakers with JL 6.5" to balance the sound.