When connected via HDMI the Onkyo will be doing the processing. When connected by analog the Oppo would be doing the processing. But since you only have two cables, there's no processing required. So leave the settings in the Oppo alone.

Sounds like you have things hooked up, and configured correctly.


Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris