I JUST BOUGHT A DHD NTX 2662 AMP AND I WAS WONDERING WHAT WOULD BE SOME GOOD SUBS TO BUY. I WANT TO RATTLE WINDOWS EVERYTIME I GO BY. I LEAVE YOU HERE WITH THE AMPS SPECS Max. Power @ 2ohm : 1400W Bridgeable : 140W x 2 Ch. + 300W x 1 Ch. = 580W Power @ 2ohm : 70W x 4 Ch. + 150W x 2 Ch. = 580W Power @ 4ohm : 50W x 4 Ch. + 100W x 2 Ch. = 400W Variable Low Pass Filter (30Hz-250Hz) Variable High Pass Filter (50Hz-1KHz) Variable 0-18dB Bass Boost Frequency Resp.: 15Hz-30KHz Low/High Level Input Gain Control, Power Indicator Signal to Noise Ratio: Better Than 90 db Channel Separation: Better Than 55db