Digital not so much on the copper changing things as we are hearing the FILTERS, not the cable anymore. Well, this assumes we aren’t swamped with BER errors, and we aren’t. I know we have argument over digital, but I’ve never seen digital be an issue over the FILTER quality at each end and, of course, the source encoding.
I use an AES/EBU XLR ICONOCLAST TPC copper cable from by PS Audio Memory Player to the DAC.
For digital AES/EBU the PIN 1 is signal Right and PIN 2 is signal Left with PIN 1 as ground reference. You don’t need the expensive, and actually WORSE for high frequency digital, 4x4 analog optimized XLR design.
Since we have virtually no errors on AES/EBU digital links, we can even use the 2468 BAV 4x1 XLR design very well too.
Digital likes the better geometry of the solid single 25 AWG wire for a more uniform impedance that is important at higher frequencie’s true transmission-line properties, but not for analog. This still is only important if the ACR, Attenuation to Crosstalk Ratio, is so poor we have errors before we get the signal to the end point. We can improve the signal magnitude or remove the noise or both. Each cost money to do.
Even better for an answer…try them and see. It is free. There is nothing that will alter the Shannon’s law BW of the digital cable based on copper for the lengths we use.
Best,
Galen