2.1 Hi-Fi Class D Audio Amplifier Board 10-18 VDC

This compact 2.1 amplifier module offers a complete audio upgrade solution, combining dedicated subwoofer output with stereo channels in a single, space-saving unit. Whether you are building a custom speaker system, enhancing a desktop computer setup, or creating a small home cinema, this module delivers impressive performance without the need for bulky separate components.

At its heart, the module provides a nominal power output of 2 × 15 watts for the stereo channels plus 1 × 30 watts for the subwoofer, all at 8 ohms. This configuration ensures clear, balanced sound with deep bass reproduction. With a frequency response spanning 20 to 50,000 Hz, it handles everything from low-end thumps to high-frequency detail with ease. The high efficiency rating of 90% means minimal power is wasted as heat, making it suitable for extended use. Connection is straightforward via a 3.5 mm stereo jack input, while power is supplied through a standard 2.1 mm DC jack. Measuring just 49 mm square and 19 mm tall, this module fits neatly into enclosures or custom builds, offering a practical solution for upgrading your audio system with dedicated subwoofer output and stereo channels in one compact package.