DESC: 4 x 75 Watts RMS at 4 Ohms 4 x 150 Watts Max at 4 Ohms 2 x 300 Watts Max at 4 Ohms Bridged 4 x 125 Watts at 2 Ohms MOSFET Switches Maintain Rated Power Over A Wide Range of Battery Voltages Stiffly Regulated PWM-Type Power Supplies Variable Input Level Controls for Each Pair of Cannels Variable High & Low Pass Crossover Controls High-Efficiency, Heavy Aluminum Heatsink Remote Subwoofer Bass Control Electronic Crossover Network Bass Boost Circuit Bridgeable at 4 Ohms 2 Ohm Stereo Stable Tri-Mode Capable Gold RCA Inputs Power & Protection LED Indicators Advanced Protection Circuitry Soft Turn On/Off Frequency Response: 15 Hz-35 kHz S/N Ratio: 90 dB