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NavAtlas BMA475 4-Channel Amplifier

Waterproof and vibration-resistant 4-channel amplifier made by NavAtlas.


  • Class D amplifier with MOSFET power supply
  • RCA inputs
  • Variable gain control
  • Built-in crossover (35Hz - 250Hz)
  • Bridge mode
  • Stable 2-ohm stereo


  • RMS power output:
    • 75W x 4 channels @ 4 Ohms
    • 98W x 4 channels @ 2 Ohms
    • 140W x 2 channels @ 4 Ohms (bridged)
  • Peak power: 300W
  • SNR: 80dB
  • Frequency Response: 10Hz-35kHz
  • Dimensions: 1.5" x 9" x 3"
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Fitment Notes & Exceptions
This is a universal fit part; it may or may not fit without modification.
Product Style Item # Store SKU Manufacturer Product # Availability
Product Style NavAtlas BMA475 4-Channel Amplifier Item # 10090073 Store SKU Manufacturer Product # BMA475 Availability Available: Ships in 1-2 business days
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