Class D Power AmplifierPart Number: ME-400D The ME-400D Class D Power Amplifier provides 500 watts (125W x 4 CH) of crisp, clean audio power. This amplifier can be easily configured to enhance your listening pleasure. Gold plated connections resist corrosion. Efficient heat sink design ensures uninterrupted operation. The ME-400D will be an outstanding addition to your vessel's audio system.Features4 Channel Class D Power Amp2 ohm stable stereo outputsBridgeable outputsVariable input level controls for each pair of channelsVariable High-pass, Low-pass and All-pass crossoverVariable Bass Boost circuitThermal and overload protection circuitryGold-plated RCA jacks and terminalsSpecificationsPower Supply Voltage: 11-16 VDCIdling Current: 0.8AIdling Current when off: Output Power (RMS)@14.4V/4ohms: 125W x 4CHOutput Power (RMS)@14.4V/2ohms: 200W x 4CHOutput Power (max)@14.4V/4ohms: 250W x 4CHOutput Power (max)@14.4V/2ohms: 400W x 4CHFuse Rating: 25A x 3Dims (LxWxH) inches: 10-7/8" x 6-3/4" x 1-7/8" (275mm x 170mm x 46mm)