The M400-4D is a 400 Watt 4-channel high efficiency Class-D marine amplifier featuring a Marine grade PC Board, on-board Punch EQ, variable crossover and tri-state protection circuits.
¥ 12dB/octave Butterworth crossover
¥ 2/4 channel input switch
¥ 4 Gauge power/ground connectors
¥ Cast aluminum heatsink
¥ Top mounted controls
¥ Marine grade 2-part epoxy coated PCB
¥ On-board Punch EQ with +18dB boost @ 45Hz.
¥ Tri-stage protection covers thermal, over-current and short circuits.