OK it has been measured as bit perfect. So it is in fact bit perfect.I have no issue with you mentioning other potential variables (power supply quality, cable/connector quality, analog circuit quality, etc.), as once you get into the analog domain, I can agree that as yet there are some things that cannot be measured or explained.
But bit-perfect is bit-perfect.
You can even explain that there is poor clocking or jitter, I’m okay with that (even if it is arguable).
But bit-perfect is bit-perfect.
Or it’s not.
And that’s the topic at hand.
-Ed