The ZK-MT21 is a Bluetooth 5.0 subwoofer amplifier board designed for 2.1 channel audio systems. It delivers 50W to two channels and 100W to a subwoofer, suitable for driving speakers with a power range of 20-100W and an impedance of 4-8Ω. This amplifier supports both AUX and Bluetooth inputs, making it versatile for various audio setups.
Key features include:
Bluetooth range up to 15 meters (unshielded)
Protection mechanisms against overheating, overcurrent, and short circuits
Power input range of 12-24V DC, with higher voltage providing better performance
It is ideal for DIY projects and requires simple assembly.
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