i deffinatly agree about the running them all of one amp... I really cannot stand when people come into CC wanting to buy 4 sony xplode 12's and say that none of our amps are strong enough to push them because there 1200 watts each.. first off, why not do 2 decent subs??? get the mtx 5500 or 7500's, or the cvr or l5-l7, or maybe the eclipse subs.. second, go learn about car audio.. PEAK MEANS NOTHING, our 1200 watt kicker amp would easily pwn all the sonys you can throw at it!