If you interested in a good Sub Amp, you should check out Sundown's SAZ-1500D
Rated power output
-RMS power, 2 ohm linkable/dual mono -3000W x 1CH
-RMS power, 1 ohm mono ---------------1500W x 1CH
-RMS power, 2 ohm mono ---------------800W x 1CH
-RMS power, 4 ohm mono----------------400W x 1CH
Signal to Noise Ratio ---------------->90dB
Low pass frequency crossover ---------35Hz~300Hz
Subsonic filter ----------------------10Hz~60Hz
Bass boost @ 45Hz --------------------0~18dB
Phase shift control-------------------0~180 degree
Frequency response--------------------10Hz~350Hz (+/- 1dB)
T.H.D @ 4 ohm-------------------------
Efficiency @ 4 ohm--------------------86%
Fuse rating---------------------------40A x 4
Input Sensitivity --------------------200mV to 6V (+/- 5%)
Dimensions----------------------------252(W) x 53(H) x 434(L)mm
I can get my hands on them if your interested...just drop me an e-mail
kluvkustoms@gmail.com