I have a pretty good system (i think so). to start i have a Pioneer 6900UB (old school), One Alpine High's amp running two kicker component 6 1/2's, and two kicker 6X8's. An Eclipse XA1000 mono Sub Amp Pushing two MTX Jackhammer 12's, all being pushed by a 5 Farad Tsunami Power Cap... Custom installation all done by me personally. Any Questions about it let me know. thanks ppl