ZK-MT21 Channel Bluetooth 5.0 CS8673E 2.1 Subwoofer Amplifier Board

Replace your damaged Bluetooth audio module with this versatile 2.1 channel amplifier board featuring Bluetooth 5.0 and CS8673E chipset. Delivers up to 50W per channel and 100W subwoofer output with DC12-24V power input. Dual connectivity via Bluetooth and AUX input accommodates various audio sources. Supports 4-8Ω speakers rated 20-100W with full EQ control for frequency, volume, treble, and bass adjustment. Compact 93x90x22mm form factor simplifies installation. Wide compatibility and stable connection performance make this an ideal upgrade for audio systems requiring reliable amplification.