(1964 V8, AK240, Onkyo DP-CMX1, Chord Mojo, Sony PH2, Sony XBA-N3, Sony MDR-1ABT, Sony WH-1000XM2, Audio-technica -ATH CKR 10, KEF Space One, TEAC NT-503DAB.
I cannot find any hardware problem on this Sonica but its size is odd. Remote control is not provided. Sound quality is good.
For software, Oppo provides iOS and Android Apps to control. Firmware needs to be updated as expected.