Well, do we know that? Software changes often introduce bugs. Could be a bug is changing what gets sent to the USB out.
As I said, I have personnally checked that Roon 1.6 is as bitperfect as Roon 1.5 on Coreaudio. USB drivers arenât changed and are getting the same Coreaudio input.
Ah, OK, thanks for confirming. I must have missed that earlier in the thread.
Analogue output stages; power supplies etc.?