I used this ZK-AS21 amplifier module for my home speaker system, and it transformed the audio experience. The bass is rich and powerful, no issues with installation at all. Highly recommend!
The CA-MT21 amplifier board is amazing. Bluetooth 5.0 connects in seconds, the bass is deep, and it handles 24V power without any heat issues. Perfect for my DIY speaker system.
The EGS002 driver board works well— the sine wave output is clean. The soldering points are a bit small, but with careful handling, I was able to connect everything properly.
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