I have seen this question a little bit different in this forum but not answered. So I'll try my luck.
The specified item was not found.
I own a Yamaha AV Receiver which is connected over HDMI to a RX480 card. The only way (I know) to use this receiver as audio device is also to use it simultaneously as display. So I have an extended display to my main display. But I only want to stream audio to this device and don't use it as additional/extended dekstop.
Is this in general possible?
As the receiver is not capable of producing a display, i don't think you have anything to worry about. If it works playing audio this way, then i see no issue here.