1 X 1800 WATTS RMS @ 4 OHMS1 X 3500 WATTS MAX @ 2 OHMS5000 WATTS MAX POWERMONO BLOCK CLASS D AMPLIFIER1 OHM STABLE200 AMP FUSING REQUIREDREMOTE SUBWOOFER LEVEL CONTROLLOW PASS VARIABLE CROSSOVER 50-150HZVARIABLESUSONIC FILTER 15-40HzVARIABLE BASS BOOST 0-18dBPHASE SHIFT SELECTORINPUT LEVEL ADJUSTMENTINPUT SENSITIVITY SELECTORLINE LEVEL INPUTSPOWER AND PROTECTION LEDSDIMENSIONS: 10"W X 2 3/8"H X 19 1/2"L