@phd If you are not hearing any differences in cabling than you don't have a very revealing system or you are hard of hearing.
This dogma is repeated over and over with no proof of validity.
Can you explain why cables when tested on machines that go far veyond human hearing show NO difference? What could it be that could possibly cause the difference you hear that the test equiptment doesn't? Your ears or your sytem are MORE revealing than the test equiptment?
Here's a recent test of a $7 cable vs. a $4000 cable and there's no difference.

