This all worked well, have since updated the Muso for the first time ( it’s a new-to-me demo unit I’ve been using largely as a speaker connected to the iMac ).
Quite late to the party as far as streaming & one-box sound.
If this was all the sound system I had the room for I’d be pleased.
In the meantime I’ll be trying this out as a centre-speaker for the 2-channel main system ( 5 italic & MA SE20 minitowers