could i reccomend a better amp? and possibly subs? Hifonics BRZ1700.1D 1700W Class D MonoBlock BRZ Brutus Series Car Subwoofer Amplifier(BRZ 1700.1D/BRZ 17001/BRZ17001/BRZ17001D) at Onlinecarstereo.com i have this amp and im powering 2 900 watt rms db drive k7 subs. i love hifonics and i love...