yeah, I had a sony amp. the 760 explode.

pos amp, it wasn't too clean.

for my subs, I use a kenwood 800w amp powering two kicker comp vr 12's. Combined with a Clarion HU and Kenwood speakers all around powered by a JL Audio 300/2, its pretty lethal.

also, like a turbo system for your engine, tuning is pretty vital. Not just in the HU, but with amps, crossovers, etc.

You can make a decent system sound better than it is when its tuned right.