Review on 🔊 Fosi Audio BL20C 320 Watts Bluetooth 5.0 Stereo Audio Receiver Amplifier 2.1 CH Mini Hi-Fi Class D TDA7498E Integrated Amp U-Disk Player for Home Passive Speakers Powered Subwoofer - Power Supply Included by Kristin Wilson

The tb20a is paired with a d10 DAC and FX tube preamp. Polk Signature S10 speakers with traditional Yamaha passive subwoofer. Professional gold speaker cable with non-standard Qed performance 40 as connecting cable. I won't say much about the sound. but there was no hiss, hum, pop or pop on startup. Shutdown didn't work either. All pens worked. The sound seems better when a subwoofer is connected. I think I got my money's worth by the way. below does not include hybrid digital amplifier nad d3020. It's three times more expensive, it's all Chinese show, although tb20a from Hong Kong (enemy - see) sorry, amateur videos made with Huawei Mediapad t1-701ua sound much better live.