Diamond Audio MICRO84U 4-Channel MICRO8U Series Full Range Class D Car Amplifier

Diamond Audio MICRO84U

The Diamond Audio MICRO8U 4-Channel Full Range Class D Amplifier, designed for high-performance audio enthusiasts, this compact 4-channel amplifier delivers clean, dynamic sound while offering the durability needed for car audio, marine, motorcycle, and powersports applications.

Part of the advanced Diamond Audio MICRO8U amplifier series, this Class D car audio amplifier is engineered to provide maximum efficiency and increased power output in a compact footprint. With 80W x 4 at 4 ohms, 150W x 4 at 2 ohms, and 300W x 2 bridged at 4 ohms, the MICRO8U 4-channel amplifier is perfect for powering full-range speakers or bridging channels for more demanding applications.

Built for real-world environments, the Diamond Audio MICRO8U amplifier features a conformal-coated circuit board, making it ideal for all-weather use. Whether installed in a boat, motorcycle, ATV, UTV, or outdoor vehicle, this weather-resistant amplifier is designed to withstand moisture, dust, and harsh conditions without sacrificing performance.

The ultra-compact amplifier design allows for flexible installation in tight spaces, while the uniform MICRO8U platform ensures a sleek and professional appearance across your entire system. With selectable REM, VOX, and DC turn-on modes, as well as 2-channel and 4-channel input options, this versatile car audio amplifier integrates seamlessly into factory or aftermarket setups.

Advanced tuning controls include a 40–400Hz crossover filter, wide frequency response (10Hz–33kHz), and adjustable input sensitivity (0.2–10V), allowing precise customization for optimal sound performance.

Features:

• 4-Channel Full Range Class D Amplifier
• 80W x 4 @ 4Ω / 150W x 4 @ 2Ω / 300W x 2 Bridged
• Compact, Space-Saving Design
• Conformal-Coated for All-Weather Durability
• Selectable REM / VOX / DC Turn-on Modes
• 2CH / 4CH Input Flexibility
• Adjustable Crossover and Input Sensitivity
• Includes RCA Input & Speaker Output Harness Kits

Specifications

4-Channel MICRO8U Series Full Range Class D Amplifier

Power Rating

• Max Power : 600 W RMS
• RMS Power (2Ω) : 150 W x 4
• RMS Power (4Ω) : 80 W x 4
• Bridged (Mono 4Ω) : 300 W x 2

Power Supply

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

Distortion

• THD 4 (1KHz @ 4Ω) : 0.5%
• S/N Ratio (A Weighted @ 1W) : -85dBA
• S/N Ratio (A Weighted @ FP) : -101.1dBA

Input Sensitivity

• Low Input Level : 200mV - 10V
• High Input Level : N/A

Input Impedance

• Low Input Level : 20KΩ
• AUX Input Level : 20KΩ

Output Stage

• Output Impedance : 0.018 Ω
• Damping Factor (50Hz @ 4Ω) : >70
• Bandwidth (-3dB) : 10Hz - 30KHz

Crossover (-12dB/Oct)

• Variable High-Pass : 40Hz - 400Hz
• Variable Low-Pass : 40Hz - 400Hz
• Variable Sub-Sonic : N/A

Fuse Ratings

• ATC : 40A

Dimensions

• L x W x H : 9.0" x 4.06" x 1.52" (228.6 x 103.12 x 38.61)mm