Vibe 1000 Watt 2 Channel Mosfet Amplifier  2 x 250 Watts RMS @ 4 Ohms 2 x 500 Watts Max @ 4 Ohms 1 x 1000 Watts Max @ 4 Ohms Bridged 2 x 420 Watts @ 2 Ohms RMS MOSFET Automatically Switches to 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 Gold RCA Inputs Line Outs for Left Right Channels Power Protection LED Indicators Advanced Protection Circuitry Soft Turn On/Off Frequency Response: 15 Hz-35 kHz S/N Ratio: 90 dB Fuse: 15A x 2 Dimensions: 10.25''W x 2''H x 15''L Sold as : Unit