It would be interesting to examine the differential between the MS200 and the MS600 straight into big DSPs. Is it possible that the 861v8 is tending to mask the differences because it deals very well with what is presumably a lesser quality signal from the MS200?

Do you think that upsampling has a similar effect in apparently reducing the differences between sources?

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