I have "acquired" five new data sheets and have emailed them to Duncs. No back pics, but it looks indeed that the G68 and G61R do not have a MMHR input.

I guess that it is possible for four SPDIFs to be tied together, but I am rather puzzled. Seems a daft decision to me.

Roon Developer and ex-moderator of this Forum
I am #25 in the HH1 photo of fame.