HED31000.1D: * HED Series Monoblock Class AB Car Amplifier * RMS Power Rating: * 4 ohms: 350 watts x 1 chan. * 2 ohms: 550 watts x 1 chan. * Pulse Width Modulated MOSFET power supply * Wired remote bass level control included * LED power (green) and protect (red) indicators * Variable Bass Boost (0 to +12 dB bass boost at 45 Hz) * Mono channel operation * Preamp RCA outputs to daisy chain multiple amps * 3-way protection circuitry (thermal, overload, and speaker short protection) * Dual speaker terminals simplify the hookup of multiple speakers * High-density alloy heat sink design * Input sensitivity: * Level: 200mV-5V * Variable low-pass filter (50-200 Hz) * Subsonic filter (24 dB at 10-50 Hz) * CEA-2006 compliant amplifier * Dimensions: 9-1/8"W x 11-9/16"L x 2-1/8"H * 1 Year 3 Kings Warranty