Want to get all the items back to deceive the seller, the seller is very bad
Module connected to old Technics AA class amplifier and music feeded from S9 phone or tablet. Level of signal from jack connector is OK without any adjustment. Quality super, no question about it. If music is 320 kB quality, dynamic and sound quite good. Power supply taken from 5V 0,5A power charger. So I can reccomend. Comparing to M28 module, sound is litle bit more sharp and dynamic maybe.