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Jaw-dropping Rockford Fosgate M400-4d 400 Watt 4-channel Class-d Amplifier Amp (2 Pack) - 121283 Grab It Now [RQhydTj1]

$51.99 $166.99 -69%

Jaw-dropping Rockford Fosgate M400-4d 400 Watt 4-channel Class-d Amplifier Amp (2 Pack) - 121283 Grab It Now [RQhydTj1]The Prime Rockford Fosgate M400 4D amplifier is a 400 Watt 4 channel high efficiency Class D amplifier specifically designed for Marine and Powersport/outdoor applicat

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Jaw-dropping Rockford Fosgate M400-4d 400 Watt 4-channel Class-d Amplifier Amp (2 Pack) - 121283 Grab It Now [RQhydTj1]

Jaw-dropping Rockford Fosgate M400-4d 400 Watt 4-channel Class-d Amplifier Amp (2 Pack) - 121283 Grab It Now [RQhydTj1]

The Prime Rockford Fosgate M400 4D amplifier is a 400 Watt 4 channel high efficiency Class D amplifier specifically designed for Marine and Powersport/outdoor applications. Power ratings on Rockford Fosgate amplifiers conform to CEA 2006 industry standards. These guidelines mean your amplifier's output power ratings are REAL POWER numbers, not inflated marketing ratings.

The amplifiers printed circuit board is conformal coated with a UV resistant finish that conforms to industry standard UV and Salt Fog specifications, and the Class D circuit topology is so efficient, it consumes much less current, from your charging system, over traditional Class A/B amps.

Features
  • Rockford Fosgate M400 4D 400 Watt 4 Channel Full Range Class D Amplifier Amp

  • 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.

  • 12dB/octave Butterworth crossover

  • 2/4 channel switch

  • 4 Gauge power/ground connectors

  • Cast aluminum heatsink

  • Top mounted controls

  • Conformal coated PCB and UV resistant finish for UV & Salt Fog protection.

  • On board Punch EQ with +18dB boost @ 45Hz.

  • Tri stage protection covers thermal, over current and short circuits.

  • Input sensitivity

  • Low level: 125mV 5V

  • High level: 250mV 10V

  • Variable high pass filter (50 500 Hz, 24 dB/octave)

  • Variable low pass filter (50 500 Hz, 24 dB/octave)

  • CEA 2006 compliant amplifier

  • Frequency response: 20 20000 Hz

  • Dimensions (L x W x H): 9.1 x 6.7 x 2 inches

  • Item Weight: 5 pounds

  • Manufacturer warranty: 1-year warranty

  • Quantity: 2

     

    What Our Customers Say

    January 27, 2026

    Absolutely no complaints!

    A wonderful asset for my professional life.

    - Petra U..

    January 27, 2026

    Absolutely no complaints!

    An excellent buy. I have absolutely and zero regrets.

    - Maredudd Y..

    January 27, 2026

    Absolutely no complaints!

    I'm happy with this product. It is so very solid.

    - Dyfed W..

    Write a Review

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