AFAICT, zone two is limited to analog sources only which is why I focused on the A/B option. Of course, I could always be wrong. Check the receiver's specs carefully before commiting.
Indeed. I want to use the "B" set for listening to stereo, so it needs to get the best signal path, which zone 2 often doesn't get.
I've looked at Denon -> there you can use the "AMP Assign" outputs for B speakers, but then you don't have surround back,
Onkyo: Zone 2 can be used, but this again makes you lose surround back.
So the two big brands already disqualify...
Nad has wat I want: A second set of speakers, and a A/B switch on the front.
Pioneer has an interesting feature. You can have full 7.1, or 5.1 plus a second set of stereo speakers...
I can't seem to find manuals for Yamaha though.
I've actually been looking at Emotiva now. With their flexible trigger outputs I could maybe just use a trigger controlled A/B speaker switch...