Diamond Audio MICRO88U 8-Channel MICRO8U Series Full Range Class D Car Amplifier

Diamond Audio MICRO88U

The Diamond Audio MICRO8U 8-Channel Full Range Class D Amplifier, engineered for maximum control, efficiency, and all-weather performance. Designed for serious enthusiasts, this 8-channel car audio amplifier delivers clean, powerful output for multi-speaker systems in cars, boats, motorcycles, and powersports vehicles.

As part of the advanced Diamond Audio MICRO8U amplifier series, this full range Class D amplifier provides exceptional performance in a compact chassis. With 75W x 8 at 4 ohms, 100W x 8 at 2 ohms, and 200W x 2 bridged at 4 ohms, the MICRO8U 8-channel amplifier is ideal for powering full active systems, multi-zone audio setups, or complex custom installations requiring precise channel control.

Built for demanding environments, the Diamond Audio MICRO8U amplifier features a conformal-coated circuit board, making it a true all-weather amplifier for marine audio systems, motorcycles, UTVs, ATVs, and outdoor installations. This rugged design ensures long-lasting performance by protecting internal components from moisture, dust, and harsh conditions.

The compact amplifier design allows for flexible installation in tight spaces while maintaining a clean and uniform look across MICRO8U systems. With selectable 2-channel or 8-channel input modes, this versatile multi-channel amplifier integrates seamlessly into factory or aftermarket audio systems.

Advanced tuning features include a fixed 70Hz high-pass filter for channels 1–4 and a variable 40–400Hz crossover for channels 5–8, along with a wide frequency response (10Hz–33kHz) and adjustable input sensitivity (0.2–10V). These controls allow precise tuning for optimal sound clarity and system performance.

Features

• 8-Channel Full Range Class D Amplifier
• 75W x 8 @ 4Ω / 100W x 8 @ 2Ω / 200W x 2 Bridged
• Compact, High-Efficiency Amplifier Design
• Conformal-Coated for All-Weather Durability
• Selectable 2CH / 8CH Input Modes
• Advanced Crossover Tuning Options
• Ideal for Multi-speaker and Active Audio Systems
• Includes RCA Input & Speaker Output Harness Kits
• Full Range Class D IR Chipset
• DirectFET Power MOSFET Output Stage
• SMD Technology on 4 Layer Glass PC Board
• ICAD Circuit Provides Superior Overload Protection
• Premium 8 Gauge Power Connections
• 5 Channel has Separate Front/Rear/Sub Input - Perfect for DSP

Specifications

8-Channel MICRO8U Series Full Range Class-D Amplifier

Power Rating

• Max Power : 1000 Watt RMS
• RMS Power (2Ω) : 100 Watt x 8 Channel
• RMS Power (4Ω) : 75 Watt x 8 Channel
• Bridged (Mono 4Ω) : 200 Watt x 2 Channel

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 - 10.0V
• High Input Level : N/A

Input Impedance

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

Output Stage

• Output Impedance : 0.018Ω
• Damping Factor (50Hz @ 4Ω) : >70
• Bandwidth (-3dB) : 10Hz - 350Hz

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 : 11.44" x 4" x 1.6" (290.5 x 103 x 40.6)mm