Waterproof 4 Channel Digital MOSFET Amplifier – DMA3100

  • This waterproof 4 channel class-D amp features molded endcaps and embedded wires
  • Making it perfect for tougher marine installations, while still powering 4 speakers

Retail Exclusive:
No Longer Available

SKU: DMA3100 Categories: ,


Conformal Coating

A transparent protective film is applied to surfaces of all interior printed circuit boards. This additional layer of defense guards against dust, condensation and corrosion – ensuring maximum longevity.

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IP66 Waterproof

Product is designed to meet the IP66 waterproof standard so as to provide protection against powerful water jets.

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Molded End Caps with Wires Embedded

Designed not to allow water seepage from the sides even during heavy splashing or rain

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dma3100 wiring



  • Class D design
  • IP66 Waterproof
  • MOSFET Power supply
  • Low-level inputs (RCA)
  • Variable gain control
  • Built-in crossover (35 Hz ~ 250 Hz)
  • Bridgeable operation
  • 2 Ohm stable stereo operation
  • Damping factor <100
  • Fuse rating 30 A


  • Power output at 14.4 VDC, 10 Hz ~ 35 Hz
  • 75 W RMS at 4 channels at 4 Ohms and ≤ 0.05 % at 1 W 1kHz
  • 98 W RMS at 4 channels at 2 Ohms and ≤ 0.05 % at 1 W 1kHz
  • 140 W RMS at 2 channels at 4 Ohms (bridged)
  • Total RMS output 300 Watts
  • Total dynamic power 1200 Watts
  • Signal to noise ratio 80 dBA (reference: 1 Watt into 4 Ohms)
  • Frequency response 10 Hz ~ 35 kHz (4 Ohms)
  • Dimensions 9″ w x 3″ h x 1.5″ d

Manuals (PDFs)


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