Looks good, works well, decent price, remote on amp is decent. Retaining Walls

Could use lower guage input holes for bigger amp power, doesnt have a bass boost.

Small! decent sound. significant improvement to head unit! Easily worth the $75 price.

Gets 5 rating overall due to price

Will distort a bit at ultra loud volumes, but you'll end up deaf if you do this regularily!

Just picked this up used on e-bay for $75 including shipping. Big upgrade compared to amp section in head unit. Not going to shatter and glass, but plays loud enough and clean enough for most "normal" people who want to retain thier hearing when they are older.

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Only head units in car, but boat loads of high end home audio.

Enough volume to require limited usage of the volume dial!! Enough quality to make me want to spend countless hours in my car!!

None......If you can afford....BUY :)

I have this installed running 2 x Alpine SPS-690's (6x9's) rear speakers. The Alpine CDA-9815 head unit runs the other four small speakers in my car. This set-up works really well for me. I know others would say "where's the sub?" but I just wanted an elegant system with adequate ballsy, yet smooth, clean, bass. I got it :)

CHEAP!!!

none yet

Drives pair of Alpine spr-176a and sws-1040 sub and works nicely. For the price - no complaints.