Fosi Audio BT30C Bluetooth 4.2 HiFi Stereo 200W 2.1 Channel Power Amplifier

very good build, materials are very good quality, over all for the price is the best choice
thank you

Sound is as expected from TPA3116 - detailed Mids, nice Highs, and unlike many similar TPA amps - real and audible bass on Speakers, not only on Woofer.
Not a single excess noise, just a little bit of static at FULL volume.
Woofer cutoff range is pretty wide.
It worked for almost an all day long and did get really warm. But it did't overheat.
Overall build quality is ok, except some oddities :
1. Really small and inconvinient to use knobs. Potentiometer nuts behind them are visible.
2. Bass control potentiometers have microphone effect! When knocking them with your finger, you can hear kicks from subwoofer.

In general, it's a really nice thing, especially considering it's price right now