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Diamond Audio

Diamond Audio Marine Amplifier HXM800.1D

Diamond Audio Marine Amplifier HXM800.1D

Regular price $599.99 USD
Regular price Sale price $599.99 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 HXM800.1D

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

  • BrandDiamond Audio
  • SKUHXM800.1D
  • Channels1
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
  • 1-channel platform.
Product description

1 Channel Class D Monoblock Amplifier

Deliver deep, powerful bass in any environment with the Diamond Audio MOTORSPORT Series 1-Channel Class D Monoblock Amplifier. Engineered for high-performance audio systems, this monoblock amplifier is designed to provide exceptional output and reliability for marine, motorcycle, UTV, ATV, and powersports applications.

Built with advanced full-range Class D digital technology, the Diamond Audio MOTORSPORT monoblock amplifier produces impressive power with 800W at 1 ohm, 550W at 2 ohms, and 350W at 4 ohms RMS, making it ideal for driving subwoofers with tight, controlled, and impactful bass. Whether you're upgrading your marine audio system or building a high-output powersports sound system, this high power subwoofer amplifier delivers consistent performance.

Designed for extreme conditions, this water-resistant amplifier features conformal-coated multi-layer circuit boards, protecting internal components from moisture, dust, and harsh environments. The anodized extruded aluminum heat sink ensures superior thermal performance, keeping the amplifier cool during extended use.

The Diamond Audio MOTORSPORT monoblock amplifier also includes balanced differential inputs for noise-free signal transmission and a DirectFET power MOSFET output stage for efficient and clean power delivery. With a variable low-pass crossover (30Hz–300Hz), subsonic filter (10Hz–55Hz), and phase control, this versatile subwoofer amplifier allows precise tuning for optimal bass performance.

Installation is simplified with selectable REM, VOX, and DC turn-on modes, making it compatible with factory and aftermarket systems. Additional features such as output clip indicators, top-mounted controls, and an included bass remote control provide easy adjustment and system monitoring.

Key Features

1-channel monoblock Class D amplifier
800W @ 1Ω / 550W @ 2Ω / 350W @ 4Ω RMS power
Water-resistant design for marine and powersports use
Conformal-coated circuit boards for durability
Variable LPF, subsonic filter, and phase control
Balanced differential inputs for clean signal
Anodized aluminum heat sink for efficient cooling
Output clip indicators for precise tuning
• Includes bass remote control

The Diamond Audio MOTORSPORT Monoblock Amplifier delivers powerful, precise, and reliable bass, making it the perfect solution for high-performance outdoor and marine audio systems.

Power breakdown
Inputs, filters & control
Build, wiring & install
Protection & performance
Full specifications
Amplifier
Amp Channels 1
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.