Well, let me tell you my sony experiences. the headunits are cool, except one i had for about 2 years.... but i think that came from not cleaning the lens on the CD player. The old subs from 2 years ago, i went through 5 12"s cause the wire going into the cone kept tearing. I had to go with a better brand (RF). The amp I have is the mono one that is 1 ohm stable, and its good enough (for now). I have the 7" LCD headunit now, but I havent had it long enough to find anything wrong with it. Sony is decent, top 3 in HUs and top 10 in amps, but i can name 50 brands for subs that are better.