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

Building on the success of the MICRO series

The MICRO8U Series amps redefine power and performance.

From the MICRO series legacy to the conformal-coated powerhouse

MICRO8U amps are built for all-weather durability and increased power.

4-Channel Full Range Class D Amplifier

Power your entire system with precision and efficiency using 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.

Key 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

The Diamond Audio MICRO8U 4-Channel Amplifier delivers powerful, clean, and reliable performance in a compact design, making it the perfect solution for high-performance audio systems in any environment.

Specifications

• 4-CHANNEL
• 300W x 2 @ 4Ω RMS BRIDGED
• 150W x 4 @ 2Ω
• 80W x 4 @ 4Ω
• ALL-WEATHER APPLICATION
• Input Sensitivity: 0.2-10 Volt
• Crossover Filter: 40-400Hz, 12dB Per Octave Slope
• Frequency Response: 10-33KHz
• Selectable REM / VOX / DC Turn On Modes
• Selectable 2CH / 4CH Input Modes
• Dimensions: 9.1" x 4.1" x 1.46" / 230.5 x 103 x 37.2 mm
• Disconnected RCA Input & Speaker Output Harness Kits Included

Brand

Diamond Audio

Type

Motor vehicle amplifier

SKU

MICRO84U