DESC: Four Channel Bridgeable Amplification 4 x 400 Watts 2 x 800 Watts Bridged 2 x 400 Watts + 1 x 800 Watts Remote Turn On/Off 2 Ohm Stereo Stable Twin MOSFET Pulse Modulated Power Supplies Variable Bass Boost (0-18dB @ 60Hz) Variable Treble Boost (0-12dB @ 10kHz) Gold Plated RCA High Impedance Inputs Soft Turn-On Circuit Heavy Duty Aluminum Alloy Heatsink DC to DC Converter Circuitry Power On/Diagnostic LED Indicator Signal to Noise Ratio: >90dB Distortion: Frequency Response: 10Hz-30kHz Overload/Thermal Shutdown Remote Bass Boost