Diamond Audio HXM800.1D HXM Series 800W RMS 1-Channel Monoblock Full Range Class-D Marine Amplifier

Diamond Audio HXM800.1D

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.

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
• Fine Tuned Variable LPF, Subsonic Filter, and Phase Control
• Balanced Differential Inputs for Clean Signal
• Anodized Aluminum Heat Sink Provides Superior Thermal Performance
• Output Clip Indicators for Precise Tuning
• Spring Steel FET Clips Provide a Cleaner Board Design
• Illuminated Logo / Fully Concealed Mounting
• Top Mounted Controls for Convenient Amplifier Adjustment
• Includes Bass Remote Control

Specifications :

HXM Series 1-Channel Monoblock Full Range Class-D Marine Amplifier

Power Rating

• RMS Power (@ 1Ω) : 800 Watt x 1 Channel
• RMS Power (@ 2Ω) : 550 Watt x 1 Channel
• RMS Power (@ 4Ω) : 350 Watt x 1 Channel

Power Supply

• Power Supply : Full PWM
• Power Supply Threshold : 10.0VDC - 17.0VDC
• Idle Current : 0.7A

Distortion

• THD 4 (1KHz @ 4Ω) : 0.05%
• S/N Ratio (A Weighted @ 1W) : -77.2dBA
• S/N Ratio (A Weighted @ FP) : -98.9dBA

Input Sensitivity

• Low Input Level : 200mV - 10.0V
• High Input Level : Up to 25W RMS

Input Impedance

• Low Input Level : 22KΩ
• High Input Level : 22KΩ

Output Stage

• Output Impedance : 0.047Ω
• Damping Factor (50Hz @ 4Ω) : >250
• Bandwidth (-3dB) : 10Hz - 350Hz

Crossover (-12dB/Oct)

• Variable High-Pass : N/A
• Variable Low-Pass : 30Hz - 300Hz
• Variable Sub-Sonic : 10Hz - 55Hz

Fuse Rating

• ATC : N/A

Dimensions

• L x W x H : 8.56" x 5.27" x 1.75" (217.6 x 133.9 x 44.5)mm