DSP cards are all we deal with out here in RESI land!? ?I have confirmed that with the -DSP input cards, that both the multi and 2-chan audio streams are available on the backplane and thus at the scalers, I assume that the device chooses what it wants/can handle...
I spoke with one of my DM experts at Crestron and he agreed that neither he nor I have seen this behavior before...
a. Is this just on one input or multiple inputs?
b. Does it happen if you set a 2-ch only EDID?
c. Are these two scalers on the same output card/pair? and thus have you tried another output pair
d. when using multi ch audio EDIDs, are the devices only capable of 2-chan audio streams?? It could be that they don't like the multi-ch and go 'Klunk' when you start up again as it switches to the 2-ch signal...
Just musing...