Are you playing MQA via the TIDAL app into the USB input on the 808 or simply using the ID41 input and playing MQA albums via Sooloos? If the latter you do not need to worry about any settings in the TIDAL app.

Streaming: Roon, NUC, QNAP869 NAS
2ch system: dCS Vivaldi, Audionet Stern, Audionet Heisenberg, Magico Q1
Retro system: 101/104/105, Red Rose Spirit