Rockford Fosgate M400-4D 400 Watt Full-Range Marine Class-D 4-Chanel Amplifier
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- 400 Watt 4-channel high efficiency Class-D amplifier specifically designed for Marine and Power-sports applications
- 75 Watts x 4 @ 4-Ohm
- Pulse Width Modulated MOSFET power supply
- Variable 12dB/octave Butterworth crossover
- 2/3/4 channel operation
- 4 Gauge power / ground connectors
- Cast aluminum heatsink for effective heat dissipation
- Tri-stage protection that covers thermal, over-circuit and short 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.
Rockford Fosgate M400-4D 400 Watt Full-Range Class-D 4-Chanel Amplifier:
Features:
- 400 Watt 4-channel high efficiency Class-D amplifier specifically designed for Marine and Power-sports applications
- Pulse Width Modulated MOSFET power supply for exceptional power and current output
- Dual LED indicators: green for power and red for protection
- Soft turn on circuitry to reduce poping and high-volume damage
- Cast aluminum heatsink with UV resistant and Salt-fog marine protection
- Marine grade 2-part epoxy coated PCB for excellent moisture resistance
- Top mounted controls for crossover and gain
- Tri-stage protection covers thermal, over-current and short circuits
- 4 / 3 / 2 Channel operation modes
- On-board Punch EQ boosts from 0 to +18dB at 45 Hz
- Front channel variable low-pass filter: 50-500 Hz, 12 dB/ octave Butterworth crossover
- Rear channel variable low-pass filter: 50-500 Hz, 12 dB/ octave Butterworth crossover
- Front channel variable high-pass filter: 50-500 Hz, 12 dB/ octave Butterworth crossover
- Rear channel variable high-pass filter: 50-500 Hz, 12 dB/ octave Butterworth crossover
- Frequency response: 20 Hz - 20 kHz
- Nickel plated 4 Gauge power and ground connectors
- Nickel plated RCA inputs
- Input sensitivity: Low level: 125mV-5V High level: 250mV-10V
- CEA-2006 compliant amplifier
- 1 Year Standard Warranty
Inputs and Outputs:
- 2 - RCA pair low level input
- 1 - RCA pair low level output
- 4 AWG power input connections
- 12 AWG speaker output connections
Max Power Output:
- 400 Watts
RMS Power Output:
- 4-Ohm: 75 Watts x 4
- 2-Ohm: 100 Watts x 4
- 4-Ohm Bridged: 200 Watts x 2
Built in Crossover:
- Front Channels: Variable 50Hz - 500Hz @ 12dB/octave
- Rear Channels: Variable 50Hz - 500Hz @ 12dB/octave
Dimensions:
- Overall Dimensions: 1.97” (H) x 6.77” (D) x 9.10” (W)
| Manufacturer | Rockford Fosgate |
|---|---|
| Part Number | M400-4D |
| Amplifier Topology Class | Class D |
| Number of Channels | 4 Channel |
| Amplifier Bridging | Bridgable @ 4 ohms |
| Minimum Impedance in Bridged Mode | 4 ohm |
| Minimum Impedance in Un-Bridged Mode | 2 ohm |
| Strappable Amplifier | No |
| RCA Pre-amp Audio outputs | 1 Pair |
| Preamp voltage | 150 mV - 11 V |
| Speaker level inputs | No |
| Gain Control | Yes |
| Bass Knob / Remote Gain | No |
| Built in Crossover | High-pass, Low-pass |
| Cooling Fan | No |
| Color | White |
| Warranty | 1 Year |
| Recommended Power Wire Gauge | 8 Gauge |
| CEA2006 Compliant | No |
| UPC Code | 780687340803 |
| Return period | 30 days |
| Exchange period | 30 days |
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