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Diamond Audio

Diamond Audio Marine Amplifier HXM800.2D

Diamond Audio Marine Amplifier HXM800.2D

Regular price $499.99 USD
Regular price Sale price $499.99 USD
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WEATHER READY
  • Weather Chassis StyleMarine Grade, Water-Resistant
Quantity
✔ In Stock & Ready To Ship
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Mei from Wide Open Sound

Wide Open Sound · Curated gear

Diamond Audio Marine Amplifier HXM800.2D

WOS Pick What this amp does in 10 seconds — expand for full specs.

  • BrandDiamond Audio
  • SKUHXM800.2D
  • Channels2
Mei says

"Match this amp to your speakers and sub. Wrong power or wiring = weak system — do it once, do it right."

The stuff you'll actually notice
  • 2-channel platform.
Product description

2-Channel Full Range Class D Amplifier

Power your outdoor audio system with precision and durability using the Diamond Audio MOTORSPORT Series 2-Channel Full Range Class D Amplifier. Engineered for extreme environments, this high power 2-channel amplifier delivers exceptional sound quality for marine audio, motorcycle, UTV, ATV, and powersports systems.

Built with advanced full-range Class D digital technology, the Diamond Audio MOTORSPORT amplifier produces impressive output with 300W x 2 at 4 ohms and 400W x 2 at 2 ohms, delivering clean, dynamic sound across the entire frequency range. For more demanding applications, the amplifier can be bridged to 800W x 1 at 4 ohms, making it perfect for powering subwoofers or high-output speaker systems.

Designed to handle harsh conditions, this water-resistant amplifier features conformal-coated multi-layer circuit boards, ensuring reliable performance in wet, dusty, and rugged environments. The anodized extruded aluminum heat sink enhances thermal performance, keeping the amplifier cool even under heavy load.

The Diamond Audio MOTORSPORT 2-channel amplifier also incorporates balanced differential inputs for noise-free operation and a DirectFET power MOSFET output stage for efficient, high-quality sound reproduction. With fully variable high-pass and low-pass crossovers (40Hz–400Hz) and phase control, this versatile car and marine amplifier allows precise system tuning for optimal audio performance.

Installation is simplified with selectable REM, VOX, and DC turn-on modes, making it compatible with both factory and aftermarket head units. Additional features such as top-mounted controls, output clip indicators, and an illuminated logo provide convenience and a premium look.

Key Features

2-channel full range Class D amplifier
300W x 2 @ 4Ω / 400W x 2 @ 2Ω / 800W bridged @ 4Ω
Water-resistant design for marine and powersports use
Conformal-coated circuit boards for durability
Balanced differential inputs for noise-free performance
Variable HPF / LPF crossovers and phase control
Anodized aluminum heat sink for superior cooling
Output clip indicators for precise tuning
Top-mounted controls for easy adjustment

The Diamond Audio MOTORSPORT 2-Channel Amplifier delivers powerful, reliable, and crystal-clear sound, making it the ideal choice for high-performance outdoor and marine audio systems.

Power breakdown
Inputs, filters & control
Build, wiring & install
Protection & performance
Full specifications
Amplifier
Amp Channels 2
Power ratings
Inputs & filters
Wiring
Weather / environment
Support
Support & warranty

Need help choosing or installing?

We build indestructible, IP-rated systems for marine, motorcycle, UTV, and automotive. If you want a matched setup, we’ll guide you to the right gear the first time.