Rockford Fosgate Punch M400-4D

General Features:

• 4-Channel Prime Series Full Range Class D Marine Amplifier
• RMS Power Rating:
• 4 ohms: 75 watts x 4 chan.
• 2 ohms: 100 watts x 4 chan.
• Bridged, 4 ohms: 200 watts x 2 chan.
• Dynamic Power:
• 4 ohms: 79 watts x 4 chan.
• 2 ohms: 138 watts x 4 chan.
• Bridged, 4 ohms: 255 watts x 2 chan.
• CEA-2006 compliant amplifier
• CE Compliant
• UV resistant and Salt-fog marine protection
• Pulse Width Modulated MOSFET power supply
• LED power (blue) and protect (red) indicators
• Cast aluminum heatsink
• Tri-stage protection covers thermal, over-current and short circuits
• Marine grade two part epoxy coating on circuit boards
• Marine grade stainless steel hardware
• Preamp RCA outputs to daisy chain multiple amps
• Soft start turn-on
• 4/2 Input Switch, sends signal to rear channels w/ only front channel inputs
• Preamp RCA output to daisy chain multiple amps
• Nickel-plated RCA level inputs
• Nickel-plated screw terminals
• Input sensitivity: 150mV - 4V
• Frequency Response: 20 - 20,000 Hz
• Efficiency (average): 80% @ 4-Ohm
• Total Harmonic Distortion (THD): <1.0%
• Punch EQ: 0 - +18dB boost @ 45Hz.
• 12dB/octave Butterworth crossover (selectable)
• Variable high-pass filter: 50 - 250 Hz, 12 dB/octave
• Variable low-pass filter: 50 - 250 Hz, 12 dB/octave
• Recommended Fuse Rating: 40A x 1 inline (not included)
• Speaker Wire Gauge: 12 AWG - 18 AWG
• Power Wire Gauge: 4 AWG - 8 AWG
• 4 gauge OFC power and ground wiring is recommended for installation. 
• Dimensions: 6-7/10"W x 9-1/10"L x 2"H