Thanks for all the replies so far. They have been most helpful. I am planning on playing with the audio tomorrow and will let all know what the results are. I would have done it today but I got involved reading Daniel Silva's new book "The Mark of the Assassin" and I can't put it down.

The AVM60 does have good flexibility in allowing for different audio modes (settings) to be associated with inputs. I just downloaded their new ARC Gensis program and will probably do a pass with that.