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SKU: A-SDX400
57% off

SDX-400.1 Weatherproof Mono Amplifier

Sale price $99.99 Regular price $229.99
Shipping calculated at checkout.


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  • 400 x 1 @ 1 ohm RMS
  • 300 x 1 @ 2 ohms RMS
  • 175 x 1 @ 4 ohms RMS
  • Variable 12dB low-pass filter: 50Hz - 250Hz
  • Variable 12dB bass boost 
  • DC auto-sensing turn on
  • Thermal, voltage, speaker short, and dc-offset protection circuitry
  • Water resistant
  • Heavy cast aluminum heat sink
  • Removable audio control cover
  • Wired remote control 

Get ready to experience the power and versatility with the water-resistant SDX amp! Perfect for your car, UTV, or any open-air vehicle, this compact yet mighty Class D amplifier delivers exceptional fidelity. Neatly protected beneath a sealed cover, a full suite of audio controls allow you the freedom to adjust your sound to perfection. A robust aluminum casing provides superior heat dissipation, and a shield from the elements. Whether its powersports or in your daily driver - with the SDX amp, you get great sound - for years of fun in any weather!

    Note: Unscrew the badge using an allen key to access audio settings.

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