Threechannel digital power amplifier board designed to deliver immersive and dynamic audio performance. This board provides multiple channels in a compact form, enabling flexible speaker configurations and clear sound reproduction. Powered subwoofer amplifier replacement. Easy to use and install, making it suitable for both DIY enthusiasts and professionals. A reliable option to refresh or upgrade subwoofer bass performance in existing systems. Small amplifier for speakers. The compact, lightweight design allows easy integration into your audio setup without adding bulk, suitable for stereo and home audio applications. Power amplifier. Simple in structure and easy to operate, with a design that resists deformation, providing dependable performance and confidence in longterm use. Use scenarios Home theater or living room upgrade: pair this amplifier board with main speakers and a subwoofer to achieve fuller, more immersive audio without extensive equipment changes. DIY audio projects: convenient for custom speaker builds or upgrades, supported by both hobbyists and professional installers who value straightforward installation and reliable operation. Small venue or portable systems: its compact size and robust design make it suitable for driving compact speaker arrays in small event spaces or portable audio setups.