Four Channel Bridgeable Amplification 4 x 300 Watts 2 x 600 Watts Bridged 2 x 300 Watts +1 x 600 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