2.1 Channel Audio Power Amplifier - 200W Stereo HiFi Bluetooth Subwoofer Module

Upgrade your DIY audio setup with the MZX YS-MT21 2.1-Channel Digital Audio Power Amplifier Module, built for creating powerful stereo sound with dedicated subwoofer output. Supporting Bluetooth 5.0, AUX, and USB audio input, this compact amplifier board offers flexible connectivity for custom speaker projects, home audio systems, and DIY sound upgrades.

The 2.1-channel design delivers up to 50W per left/right channel and up to 100W for the subwoofer, with support for compatible 4–8Ω speakers rated from 20–100W. Built-in controls allow adjustment of volume, bass, treble, and frequency, helping you fine-tune your listening experience.

Designed for 12–24V DC power, the module can automatically prioritize USB, AUX, or Bluetooth input depending on the connection used. Bluetooth 5.0 also supports convenient wireless playback and automatic reconnection.

Choose between the square or chamfered version—both offer the same functionality and power specifications. Please note that the power adapter is not included, and adequate power supply and heat dissipation are important for achieving the best performance.