Diamond Audio 1-Channel DXM Series Monoblock Class D Waterproof Amplifier - DXM1200.1D

Diamond Audio 1-Channel DXM Series Monoblock Class D Waterproof Amplifier - DXM1200.1D

Unleash massive bass in any environment with the Diamond Audio 1-Channel Monoblock Class D Waterproof Amplifier, engineered for marine, motorcycle, ATV, UTV, and off-road audio systems. Designed to perform in the harshest conditions, this IPX67-rated waterproof amplifier delivers powerful, clean, and controlled low-frequency output with exceptional reliability.

Built with advanced full-range Class D digital technology, the Diamond Audio waterproof monoblock amplifier produces impressive power with 1200W RMS at 1 ohm, 800W at 2 ohms, and 500W at 4 ohms, making it ideal for driving high-performance subwoofers. Whether you’re upgrading a marine subwoofer system or building a high-output powersports audio setup, this subwoofer amplifier delivers deep, tight bass with minimal distortion.

Engineered for extreme durability, this marine-grade amplifier features IPX67-rated multi-layer circuit boards, protecting against water, dust, and environmental damage. Combined with short circuit, thermal, and voltage protection, the Diamond Audio monoblock amplifier ensures long-lasting performance in demanding conditions.

The amplifier includes balanced differential inputs for noise-free signal transmission and a Direct FET power MOSFET output stage for efficient, high-quality sound. With variable low-pass crossover (40Hz–250Hz), subsonic filter (10Hz–55Hz), adjustable phase control (0°–180°), and up to 18dB bass boost, this high power Class D amplifier allows precise tuning for optimal bass performance.

Installation is simplified with selectable REM, VOX, and DC turn-on modes, ensuring compatibility with factory and aftermarket head units. The included remote bass knob allows real-time control of subwoofer output.

Features

• 1-channel monoblock Class D waterproof amplifier
• IPX67-rated for marine and outdoor applications
• 1200W @ 1Ω / 800W @ 2Ω / 500W @ 4Ω RMS power
• Balanced differential inputs for clean signal
• Variable LPF, subsonic filter, and phase control
• Up to 18dB bass boost for enhanced low-end output
• Short circuit, thermal, and voltage protection
• Includes remote bass knob and LED status indicator

What our Experts Think  

• DXM Series monoblock Class D amplifier designed to deliver powerful bass performance in demanding audio environments.
• Waterproof construction makes it ideal for marine, powersports, and outdoor audio systems exposed to moisture and weather.
• High-output Class D technology provides efficient power delivery with reduced heat and energy consumption.
• Designed for subwoofer applications with strong, controlled low-frequency output and clean sound reproduction.
• Compact installation-friendly design allows flexible placement in boats, UTVs, motorcycles, and vehicles.
• Built for rugged use with durable components engineered to handle vibration and harsh conditions.
• Reliable power performance helps maximize subwoofer potential for louder, deeper bass.
• An excellent choice for enthusiasts wanting premium bass output with all-weather durability.

 
Q&A    

Q: What is the Diamond Audio DXM1200.1D designed for?
A: The DXM1200.1D is a 1-channel DXM Series monoblock Class D waterproof amplifier built for marine, motorcycle, ATV, UTV, and off-road subwoofer systems.

Q: How much power does the DXM1200.1D deliver?
A: It delivers 1200W RMS at 1Ω, 800W RMS at 2Ω, and 500W RMS at 4Ω for powerful, efficient bass performance.

Q: Is the DXM1200.1D waterproof?
A: Yes. It features an IPX67-rated waterproof design with protection against moisture, dust, and harsh outdoor environments.

Q: Does the DXM1200.1D include bass tuning controls?
A: Yes. It includes adjustable low-pass crossover, subsonic filter, phase control, bass boost, and a remote bass knob for customized sound.

Q: Why choose the Diamond Audio DXM1200.1D?
A: It combines high-output Class D power, rugged waterproof construction, and flexible tuning for reliable subwoofer performance in demanding audio setups.

Maintenance Tips    

• Clean the amplifier surface with a soft microfiber cloth to remove dust, dirt, and residue.
• Inspect power, ground, remote, and speaker connections regularly for secure, corrosion-free contact.
• Ensure waterproof seals and mounting points remain properly secured to protect internal components.
• Keep cooling areas clear to maintain efficient operation and prevent overheating.
• Check fuses and wiring periodically for wear, damage, or loose connections.
• Avoid prolonged exposure to harsh conditions and verify mounting hardware stays tight for reliable performance.