Unit includes: Marine grade PC Board, on-board Punch EQ, variable crossover and tri-state protection circuits
The Rockford Fosgate M400-4D Marine amplifier is an amplifier that must be heard to be believed. It brings the supreme efficiency of Class-D to a Full-Range amplifier that is specifically designed to be used in the Marine and power sports environment. It is designed to use current from our charging system sparingly making it perfect for boats, jet-skis, ATV's and UTV's. The epoxy coated circuit boards prevent damage from water while the cast aluminum heat-sink dissipates heat.
Overall Dimensions: 1.97” (H) x 6.77” (D) x 9.10” (W)
Amplifier Topology Class
Number of Channels
Total Peak Power Output
Total RMS Power Output
Bridgable @ 4 ohms
Minimum Impedance in Bridged Mode
Minimum Impedance in Un-Bridged Mode
Strappable Power Output
RCA Pre-amp Audio inputs
RCA Pre-amp Audio outputs
150 mV - 11 V
Speaker level inputs
Bass Knob / Remote Gain
Built in Crossover
Recommended Power Wire Gauge
Small but awesome
Review by Josh
Install (5 star for easy)
Wanted to add some power to my tunes in my boat and was amazed that I got a birth sheet with 510 watts! This little sucker is got exactly what I needed, powers everything I have, two wake towers and two cabin speakers with ease!(Posted on 7/28/2015)
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