Since I am debating with myself if and how to replace the Control:10 in the Sooloos system, do you think that MQA is something the new endpoint "must" have?

When do you expect an MS600 successor with MQA?

Perhaps I will get a good price on the 818v3. Since my DAC PS Audio DL3 with Moll1 modification is also not the latest model, the whole system might sound better with the 818v3.

Ensemble, 818v3, Symphonic Line RG10 MK4 HD Reference, Piega C40