I tried to connect the HDMI (HDA Intel PCH HDMI 0) from my NUC with ROCK Core to a Meridian HD621.
With the Audio Device Setup set to default (Advanced Setup Channel layout = 2.0), some music comes out of my DSP8000 speakers. But it’s stereo 2 channel only. If I change the Advanced Setup to Channel Layout = 5.1, nothing comes out anymore.
What’s the proper Roon Audio Device Setup to output multichannel from the NUC HDMI to a Meridian HD621?