Yes very frustrating, I recently purchased some 5200SE and I'm now in limbo land waiting to see what will or will not be MQA compatible. I'd like to buy an MS600 but will it work...

I do not see any benefit in withholding basic compatibility information to those who have at the end of the day supported the Meridian brand and therefore helped fund the development of MQA!

5200SE, Arcam R-play, F80