No “channel layout” on HDMI OPPO or NAD 758

[BlackJack]

Only 2.0 support for OPPO using Ethernet and RAAT:

OPPO UDP-203 and UDP-205 now Roon Ready

The official message from Oppo we were instructed to give when this multichannel limitation comes up: Due to technical limitations within these products, the audio interface available to the RAAT firmware is unable to support DSD or multichannel playback. OPPO is investigating a path forward, but as of now, we don’t know if or when these limitations will be bypassed.

AFAIK OPPO went out of the CD/DVD/BD player market before a solution could be found.