Triode User
Member of the Trade: WAVE High Fidelity
This is what i don't understand. When you say you can hear all 4 modes on coax 2 surely its a contradiction as full OPSR white can only trigger a light blue input colour and never red for coax 2 on H2? Also i pm'ed Rob before a while back and he was 100% adamant that it makes no difference which bnc cable is plugged into which side ie L or R of the rca adaptor. There must be something else going on here. I don't doubt your observations at all.
Try it yourself.