One more, but it will not sink in. Nothing has yet.

You need to pay attension, read the right material, AND, stop trying to cross correlate one area of hearing to another: vinyl rumble to distortion levels.
You need to get out and do some research for a change on what is audible and what is not audible, specifically distortion. But then I'd rather talk to the brick wall, at least something sticks to it.

"Just detectable distortion Level" James Moir, Wireless World, Feb 1981, p32-35

"Audible Amplifier Distortion is not a Mystery" Peter J. Baxandall, Wireless World, Nov 1977, page 63-66.

"Ten Years of A/B/X Testing", David Clark, AES print 3167, 1991.

No, I will not tell you what is in there. You hunt and find out. But I doubt you will. Why would you? Your world may be turned upside down.