Do you mean Dune player as a decoder?
You are correct. That did not work.
Instead I used a receiver (see post 1 in this thread). We modified it so it sends out the decoded PCM over 3 coax wires which is what Meridian used to use for their 800 upsampling player. I just tell my 861 to use the 3 coax input and it works fine. No 621 required in this example. I still use it as an HDMI switch because there are other sources that can decode.
You are correct. That did not work.
Instead I used a receiver (see post 1 in this thread). We modified it so it sends out the decoded PCM over 3 coax wires which is what Meridian used to use for their 800 upsampling player. I just tell my 861 to use the 3 coax input and it works fine. No 621 required in this example. I still use it as an HDMI switch because there are other sources that can decode.