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Diamond Audio

Diamond Audio 2-Channel MICRO8U Series Full Range Class D Amplifier - MICRO82U

Diamond Audio 2-Channel MICRO8U Series Full Range Class D Amplifier - MICRO82U

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Diamond Audio 2-Channel MICRO8U Series Full Range Class D Amplifier - MICRO82U

Experience compact power and all-weather performance with the Diamond Audio MICRO8U 2-Channel Full Range Class D Amplifier, engineered for enthusiasts who demand high output, efficiency, and durability. Building on the success of the original MICRO series, the MICRO8U amplifier delivers increased power and advanced technology, making it the perfect upgrade for car audio, motorcycle, marine, and powersports systems.

Designed from the ground up, the Diamond Audio MICRO8U 2-channel amplifier features a full-range Class D topology, providing clean, efficient power across the entire frequency spectrum. With impressive output capabilities, this high power car audio amplifier delivers 150W x 2 at 4 ohms, 250W x 2 at 2 ohms, and up to 500W bridged, making it ideal for powering speakers or subwoofers in compact, high-performance systems.

Built for real-world conditions, the MICRO8U Class D amplifier is conformal-coated for all-weather applications, ensuring long-lasting reliability in marine, motorcycle, ATV, UTV, and outdoor audio environments. Whether you're cruising on the water or riding through rugged terrain, this water-resistant amplifier is designed to perform in demanding conditions.

The compact amplifier design allows for easy installation in tight spaces, while the uniform platform and dimensions across most MICRO8U models ensure a clean and professional setup. With selectable REM, VOX, and DC turn-on modes, along with 2-channel or 4-channel input options, this versatile car audio amplifier integrates seamlessly into factory or aftermarket systems.

Additional features such as a 40–400Hz crossover filter, wide frequency response (10Hz–33kHz), and adjustable input sensitivity (0.2–10V) ensure precise tuning and optimal sound performance.

The Diamond Audio MICRO8U 2-Channel Amplifier delivers powerful, clean, and reliable performance in a compact design, making it the perfect solution for high-performance car audio and outdoor sound systems.

Features

• 2-channel full range Class D amplifier
• Up to 500W max power output
• 150W x 2 @ 4Ī© / 250W x 2 @ 2Ī© / 500W bridged
• Conformal-coated for all-weather durability
• Compact design for easy installation
• Selectable REM / VOX / DC turn-on modes
• Adjustable crossover and input sensitivity
• Includes RCA input & speaker output harness kits

What our Experts ThinkĀ 
  • Ultra-compact 2-channel Class D amplifier designed for motorcycles, powersports, and tight installation spaces.
  • Delivers clean, full-range output with high efficiency and low heat generation for reliable performance.
  • MICRO8U platform compatibility allows advanced tuning integration when paired with supported DSP modules.
  • High signal clarity ensures distortion-free audio even at elevated volume levels.
  • Flexible 2-channel design supports front-stage upgrades or bridged high-power speaker configurations.
  • Rugged, vibration-resistant construction ensures durability in harsh riding environments.
  • Ideal for users needing a compact yet powerful amplifier for clean and efficient audio upgrades.
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Q&A

Q: What is the Diamond Audio MICRO82U?
A: Diamond Audio MICRO82U 2-Channel Class D Amplifier (MICRO8U Series) is a compact high-efficiency 2-channel Class D amplifier designed for car, motorcycle, marine, and powersports audio systems where space and durability matter.

Q: How much power does it produce?
A: It delivers approximately 150W x 2 @ 4Ī©, 250W x 2 @ 2Ī©, and up to 500–600W bridged @ 4Ī© depending on configuration, making it suitable for both speaker and small subwoofer applications.

Q: What makes the MICRO82U different from standard amplifiers?
A: It uses a compact ā€œmicroā€ chassis with Class D efficiency and a conformal-coated PCB for resistance against moisture, vibration, and harsh environments.

Q: Is it good for motorcycles and outdoor use?
A: Yes. It is specifically designed for tight installations and all-weather conditions, making it popular for Harley-Davidson, UTV, and marine audio upgrades.

Q: Can it run a full system?
A: It can power a pair of high-output speakers or be bridged to drive a subwoofer, but it is best suited for simple 2-channel setups rather than full multi-speaker systems.

Q: What is the sound quality like?
A: Clean, efficient, and low distortion output with enough headroom for loud, clear sound in noisy riding or driving environments.

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Maintenance Tips Ā  Ā 
  • Install in a dry, well-ventilated location to ensure proper heat dissipation.
  • Regularly check power, ground, and speaker connections for tight, corrosion-free contact.
  • Inspect RCA and signal cables for secure fit and signs of wear or damage.
  • Keep amplifier free from dust using a soft, dry cloth or low-pressure air.
  • Avoid blocking heatsinks or ventilation fins during operation.
  • Ensure stable voltage supply to prevent clipping, distortion, or shutdowns.
  • Properly set gain and crossover to avoid overdriving speakers.
  • Avoid exposure to moisture, high humidity, or direct water spray.
  • Always power off the system before adjusting wiring or settings.
  • Periodically check for vibration-related loosening in mobile or motorcycle installations.