Could you tell us what brand of AES/EBU cable you use?
Audioquest Wind. That’s not an official recommendation, just something I happened to have. I’m sure there are better options available. As you can probably imagine I spend more time listening to the direct analogue output option as it more directly shows the Interface capabilities cutting out the “middleman”, being AES/EBU in this case. Naturally that’s more or less irrelevant for the Totaldac.