@adasdad , thanks, I had linked that article above. The article says they upsampled to 176kbps when connecting to the Gryphon DAC. That leads me to believe they were using TOSLINK and not the SPDIF connection option on the Gryphon DAC module (which would need to be RCA on the M-Scaler side but BNC on the Gryphon DAC side (I think most cable companies will mix and match connectors in this scenario?)
But this does lead me to the unresolved debate on the pros and cons of various digital interfaces, USB vs TOSLINK vs SPDIF, etc….. The experts end up saying what matters most is the implementation of the interface by the manufacturer, and not the interface itself.
Either way, I don’t know how good or bad the SPDIF connection is (which I’d need to use for the m-scaler if/when I bought one) in my Gryphon DAC module, vs the USB interface for which I know Gryphon went to town on. I wish I could do an interface bake off with my current gear, but Innuos only has USB outputs.

