ZK-ST21 100W2+200W 2.1Channel Bluetooth Amplifier Board
Bluetooth, AUX, and USB input amplifier board with dual TPA3221 chips delivering 100W2 (stereo) + 200W suboutput. Suitable for car audio or home theater with 12-30V DC operation
Highlights
- high-fidelity dual chips
- 2.1 channel with subwoofer output
- wide 12-30V DC operation
Pros
- dual TPA3221 hi-fi chips
- multi-channel output including subwoofer
- wide voltage input for diverse setups
- bluetooth, aux, and usb connectivity
Cons
- customer insights are not provided
- rating based on limited reviews
- no detailed durability data
Best For
Features
- Dual TPA3221 HiFi chips drive stereo 100W + subwoofer 200W output
- Wide input voltage supports 12-30V DC for vehicle or home use
- Bluetooth, AUX, and USB drive connectivity for versatile pairing
- Plug-and-play design compatible with phones, TVs, laptops, and more
- Separate bass and treble knobs for precise audio customization
