Diamond Audio 2-Channel HXM Series Full Range Class D Amplifier - HXM800.2D
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 (40Hzā400Hz) 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.
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.
Features
ā¢ 2-channel full range Class D amplifier
ā¢ 300W x 2 @ 4Ī© / 400W x 2 @ 2Ī© / 800W bridged @ 4Ī©
ā¢ Water-resistant design for marine and powersports use
ā¢ Conformal-coated circuit boards for durability
ā¢ Balanced differential inputs for noise-free performance
ā¢ Variable HPF / LPF crossovers and phase control
ā¢ Anodized aluminum heat sink for superior cooling
ā¢ Output clip indicators for precise tuning
ā¢ Top-mounted controls for easy adjustment
What our Experts Think Ā
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Q&A Ā Ā
Q: What is the Diamond Audio HXM800.2D designed for?
A: It is a 2-channel full-range Class D amplifier designed for marine, motorcycle, UTV, and custom audio systems.
Q: What are the benefits of Class D amplification?
A: Class D technology provides efficient power output, reduced heat, and a compact design for flexible installation.
Q: Can the HXM800.2D power multiple speakers?
A: Yes. Its 2-channel layout is ideal for powering speaker pairs or upgrading existing audio systems.
Q: Is this amplifier suitable for outdoor use?
A: Yes. The HXM Series is built for demanding environments including boats, powersports vehicles, and motorcycles.
Q: Does it help improve sound quality?
A: Yes. It delivers cleaner power, stronger volume, and improved audio performance when paired with compatible speakers.
Maintenance Tips Ā
- Clean the amplifier with a soft, dry microfiber cloth to remove dust and debris.
- Keep cooling fins and ventilation areas clear for proper heat dissipation.
- Inspect power, ground, RCA, and speaker connections regularly for tight, corrosion-free contacts.
- Ensure the amplifier is securely mounted to minimize vibration damage.
- Set gain and crossover controls properly to prevent clipping and protect connected speakers.
- Avoid prolonged operation at maximum output to extend amplifier life.
- Check fuse holders, terminals, and wiring for wear, overheating, or loose connections.
- Keep the amplifier protected from excessive moisture, heat, and direct sunlight.
Damage 
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