Product Description

TPA3255 8 Channel 7.1 Surround Class D Digital Power Amplifier Board | 300W×8 HiFi Audio Amp DC24V-48V

Create your own professional-grade 7.1 surround sound home theater with our high-performance TPA3255 8-channel digital amplifier board. Powered by four TPA3255 Class D chips, this audio module delivers explosive, clean multi-channel sound ideal for movie playback, music listening and custom DIY audio builds.

Premium Sound & High Power Performance

• Max output power: 300W per channel at 4Ω impedance, 150W per channel at 8Ω

• Ultra-low 0.01% total harmonic distortion + 100dB ultra-high signal-to-noise ratio

• Full frequency coverage 20Hz-20kHz, restore delicate treble and deep bass without noise

• Matches all 10W~300W 4Ω / 8Ω passive speakers for complete 7.1 surround experience

Full Protection System for Safe & Stable Operation

Humanized Interface & Heat Dissipation Design

• Standard 2.54mm pitch 10-pin single-ended audio input socket for easy wiring

• Special fan interface compatible with 12V 100mA DC fan for continuous heat dissipation

• Compact overall size 350×132×45mm, easy to embed inside custom audio cabinet

Must-Read Operation Guidelines

1. Only compatible with passive speakers. Active speakers, active subwoofers and constant-voltage speakers are not allowed to connect.

2. Do not use power supply over DC48V. Reversed positive and negative power poles will burn out internal components permanently.

3. Wrong polarity of audio input leads to obvious noise, check wiring before turning on power.

4. Only 12V 100mA DC fan can be connected to the fan port.

5. Do not install in humid/watery places; avoid placing powered amplifier directly on metal surface.

Complete Technical Specifications

Application Scenarios

DIY 7.1 surround home theater system, multi-channel studio audio equipment, custom living room movie sound system, high-fidelity multi-room speaker amplifier, audio modification project for enthusiasts