ok new setup idea:
2 pioneer 12" subs - 300w RMS each, 600w peak each
powered by pioneer amp - 800w peak, 150 watts RMS x 2 at 4 ohms, 200 watts RMS x 2 at 2 ohms, 400 watts RMS x 1 bridged output at 4 ohms
mdf enclosure
1000w wiring kit
all for roughly $340 brand new