TPA3255 4-Channel Digital Power Amplifier Board 300W×4@4Ω 150W×4@8Ω HiFi Audio Amp DC24V-48V with Full Protection Circuit

Product Description

Looking for a high-power, low-distortion and high-stability digital amplifier board for your speaker upgrade and audio DIY project? Our TPA3255 4-Channel HiFi Digital Power Amplifier Board is your ideal choice, combining dual-chip high-power output, professional sound quality tuning and full safety protection, perfectly meeting the needs of home theater, desktop audio and professional audio modification.

Adopting dual original TPA3255 amplifier chips, this 4-channel amp board supports multi-impedance adaptive output, reaching 300W×4 (4Ω) and 150W×4 (8Ω) high power. With ultra-low 0.01% total harmonic distortion and 100dB ultra-high signal-to-noise ratio, it restores pure and shocking stereo sound, covers complete 20Hz-20kHz human hearing frequency range, eliminates background noise and sound distortion, and presents professional HiFi audio experience.

Equipped with a complete intelligent protection circuit system, including overheat protection, over-current protection and power-on delay protection, which can automatically identify and avoid circuit abnormalities, effectively prevent equipment burnout and extend the service life of the amplifier and speakers. The wide DC 24V-48V voltage input design with 10A+ high-current power supply adaptation ensures stable and continuous high-power output without failure even after long hours of work.

Designed with standard 2.54mm pitch 6-pin single-ended audio input interface, the wiring is accurate and convenient, effectively avoiding noise caused by wrong polarity connection. The reserved 12V cooling fan interface solves heat dissipation problems thoroughly. Compact size (188×130×45mm) saves installation space, suitable for all kinds of DIY audio systems, home theater setups, desktop stereo speakers and indoor professional audio equipment.

Professional Usage Guidelines for Better Experience

This amplifier board is only compatible with passive speakers (10W-300W, 4Ω/8Ω). Please do not connect active speakers, active subwoofers or constant-voltage speakers. Strictly follow DC 24V-48V voltage range and correct power polarity. Do not use in humid environment or place on metal surface during power-on operation to ensure safe use.