1ohm stable; 0deg -180deg phase adjustment; Nickel-plated RCA jacks resist corrosion; Variable electronic crossover allows for complete control of sound; Ultra-Fi(TM) MOSFET outputs for high power & efficient cooling with minimal distortion; Aluminum heat sink minimizes heat buildup; Simpatico coil design keeps voltage constant through Ultra-Fi(TM) MOSFET outputs; Molded & angled connection types; Monitor overload & speaker short protection with illuminated LED indicators on end panel; Low-noise preamp circuitry; 12-gauge speaker terminal wire; Freq resp: 10Hz-250Hz; 0dB-10dB bass boost; 15Hz-35Hz subsonic filter; 3,000W x 1 @ 1ohm ; 700W x 1 @ 4ohm ; 1,400W x 1 @ 2ohm ; Includes bass remote & manual;