Mosfet Power SupplyPWM Circuitry Full Selectable CrossoverHi/Full/Low Variable Low Pass 40Hz-120HzVariable Hi Pass 150Hz-1.5Khz Bass Boost @ 40Hz & Variable 0-18 dBThree Way Protection Circuit System Distress IndicatorHigh/Low Level Inputs With Floating Ground4 Gauge Power/Ground Connection75 WATTS X 2 @ 4 OHMS RMS90 WATTAS X 2 @ 2 OHMS RMS180 WATTS MONO@ 4 OHMS RMS300 WATTS MAX