Diamond Audio DXM1200.1D 1-Channel DXM Series Monoblock Class D IPX67 Marine Rated Waterproof Amplifier

Diamond Audio DXM1200.1D

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

Specifications:

• Power Output Rating :
  • Power @ 1Ω : 1200W RMS
  • Power @ 2Ω : 800W RMS
  • Power @ 4Ω : 500W RMS
• Total Harmonic Distortion : <0.3%
• S/N Ratio (1W@4Ω) : >-102dB
• Gain Range : 0.2V-10V
• Crossover Range : 40Hz-250Hz
• Frequency Range : 40Hz-300Hz
• Variable Low-Pass Crossover : 40Hz–250Hz
• Variable Sub Sonic : 10Hz-55Hz
• Bass Boost : 0dB-18dB
• Current Draw Full Power (Music) : 140A (14A) AVG
• Fuse Rating : 70A
• Power & Protection Led Light Status Indicator
• Short Circuit, Thermal and Voltage Protection
• Selectable Phase : 0°-180°
• IPX67 Marine Rated
• Remote Bass Knob Included
• Dimensions (L x W x H) : 11.8" x 4.3" x 1.7" (298.6 x 110 x 44)mm