Alpine KTP-445

Not surprisingly Alpine has again hit the mark with its new PDX-Audiophile range.

This is a great little amp if you buy good speakers and don't want to run a bunch of wires. My A4 factory system sounded pretty bad. I started off with a new Pioneer head unit and that helped, but it would distort at high volume. Next I bought four...

This amp is AMAZING! I'm in love with it. I got it installed yesterday and it really is worth every penny that you pay for it.

This is a great little power amplifier for those of you with the need for more power than a typical head unit, but at much less cost and space of traditional amplifiers.The amplifier has both RCA and line-level inputs (cut the RCAs to use line-level)...

This amp is awesome. It powers all 12 of my speakers so well that my kids complain when the volume is at 6. I've had it as high as 16 and could barely stand it because it's so loud. I really don't know how high the maximum volume is because my ears...

This is a fine product with one exception, which is probably common to most recent digital power amps. The protection circuit is over-sensitive, and to add insult to injury, doesn't just limit the output as did previous units, but shuts down to the...

I never post reviews, but I had to for this product. I decided to buy this amp, because I just simply don't want two amps in my car. After it was installed, the sound it produces is amazing. Clear bass, and mono sound. No wonder alpine is the best when...