Rockford Fosgate M400-4D Prime Marine 400 Watt Full-Range Class-D 4-Channel Amplifier

Designed for Marine and Powersport Applications

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.

The Prime M400-4D amplifier is a 400 Watt 4-channel high efficiency Class-D amplifier specifically designed for Marine and Powersport applications. The amplifier features a Marine grade PC Board, and the Class-D circuit topology is so efficient, it consumes much less current from your charging system over traditional Class-A/B amplifiers.

Features:

• 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

Specifications:

• Number of Channels 4
• Bridgeable Yes
• Signal Input Low Level: 2 RCA Pair
• Power Input Connector Block
• Power Wire Gauge 4 AWG
• Speaker Output Connector Block
• Speaker Wire Gauge 12 AWG
• Cooling Convection
• Circuit Topology Class Full-Range Class D
• Frequency Response 20Hz to 20kHz +/-1dB
• Dynamic Power (PVC/PowerCube®) 79 Watts x 4 @ 4-Ohm, 138 Watts x 4 @ 2-Ohm, 255 Watts x 2 @ 4-Ohm Bridged
• Rated Power (RMS Continuous Power) 75 Watts x 4 @ 4-Ohm, 100 Watts x 4 @ 2-Ohm, 200 Watts x 2 @ 4-Ohm Bridged
• Crossover Controls Front Channels: Variable 50Hz - 500Hz @ 12dB/octave / Rear Channels: Variable 50Hz - 500Hz @ 12dB/octave
• Tone Controls 0dB to +18dB @ 45Hz
• Signal Output Low Level: 1 RCA Pair
• Heat Sink Type Cast Aluminum
• Remote Controls n/a
• Visual Indicators Power / Protect
• Dimensions (H x W x D) 1.97" x 6.77" x 9.10" (5cm x 17.20cm x 23.10cm)
• Shipping Weight 5.863 lbs. (2.65 Kg.)
• Efficiency (average) 80% @ 4-Ohm, 75% @ 2-Ohm
• CEA-2006 Compliant
• CEA-2006 Power Rating 75W x 4 @ 4Ω, ≤1.0% THD+N
• Total Power (Sum of Rated Power) 400 Watts RMS