I got my 779 today and just finished setting it up (including updating the firmware). So far I'm very pleased but I stumbled over a strange behaviour:
Apart from two video sources attached via HDMI, I have two audio sources attached to it:
A CD Player connected via optical cable to AV1 and
a Sonos Connect connected via coax cable to AV2.
When I choose AV1 I can listen to CDs just fine, adjusting the volume, choosing DSP, whatever - everything works as expected.
But when switching to AV2, strange things happen:
Firstly, I nearly blew my ears away! I always keep the volume adjustment feature in the Sonos Connect disabled in order to handle the volume using the amp (previous one was a Onkyo). But with the 779, the volume control doesn't have any effect, I have to use the volume control of the Sonos to stop the earthquake!
Secondly, when the playback on the Sonos is still running, I can hear it on any other AV channel - on AV1 the playbacks of the Sonos and the CD are even mixed
And when listening to this mix, the volume control of the 779 again does only have an effect on the volume of the CD playback...
Strangely, it does not work the other way round - when the CD playback is running and I choose any other channel than AV1 the CD playback can't be heard anymore (this is what I would expect from AV2 likewise).
I scanned the manual and all the setup options but I can't find any error in my configuration and consequently no way to change this strange behaviour.
Did anyone have the same problems or does anyone have an idea how to fix this?
Thanks a lot!