Function and benefit Multifunctional amplifier board that amplifies weak signals from a source or preamplifier to drive speakers, improving playback clarity and volume for a wide range of audio setups. Channel configuration 2.1 channel power amplifier board: 2x30W for the two main channels plus a 60W sub channel. Compatibility Compatible with common audio sources and preamplifiers, suitable for integrating into existing audio systems and DIY projects. Design and size Compact board designed for easy integration into custom enclosures and DIY audio builds, enabling clean, spaceefficient installations. Performance and reliability Delivers reliable amplification for stereo playback with an accompanying sub channel, supporting clear mids and highs with solid bass response in typical home and hobbyist setups. Use scenarios Home audio upgrade: Add this amplifier board to a passive speaker system to boost output and improve overall sound quality from a preamplified source. Small home theater or PC setup: Create a 2.1 system by driving left/right speakers and a subwoofer for movies, gaming, and music. DIY audio projects: Incorporate into custom speaker enclosures or project boxes to realize a compact, capable amplification solution.