Review of the Sure AA-AB32178
2 x 50 Watt 4 Ohm Class D Audio Amplifier Board - TPA3116
Amplifier Module when supplied by a 16V/4.5A Lenovo Laptop supply

Key findings:

Good thermally stable design for driving 4 Ohm loads

- 25W into 4 Ohm @ 1% distortion @ 16V supply
- 30W into 4 Ohm @ 10% distortion @ 16V supply
- Damping factor 37 @ 4 Ohm (good)
- essentially flat frequency response

The review was inspired by this review from FFcossag:
[ Ссылка ]

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