Diamond Audio MICRO81U 1-Channel MICRO8U Series Monoblock Class D Amplifier

The Diamond Audio MICRO81U is a 1-channel monoblock Class D amplifier, part of the advanced MICRO8U series, engineered for powerful and efficient bass performance in a compact design. This amplifier is designed for enthusiasts who demand high output and all-weather durability, making it suitable for a wide range of applications including car, marine, motorcycle, and powersports audio systems.

Built on an ultra-efficient full-range Class D design, the MICRO81U delivers clean, dynamic power while minimizing heat and maximizing performance. It is conformal-coated for all-weather applications, providing protection against moisture, dust, and environmental exposure to ensure long-lasting reliability.

The compact chassis allows for easy installation in tight spaces, while its uniform platform ensures a sleek and streamlined look when integrated into any audio setup. Advanced tuning features include a variable low-pass crossover filter, adjustable subsonic filter, and bass boost control, allowing for precise customization of subwoofer performance.

The amplifier also offers selectable REM, VOX, and DC turn-on modes, along with flexible input configurations (RCA low-level/high-level), ensuring seamless integration with both factory and aftermarket systems. A remote bass knob is included for convenient level control.