Signal said:

Now consider Arnie's listener training program. It helps instil
"paths" in peoples conscious awareness. That is exactly the point of
it. Whist this surely helps people to hone in on the particular
differences he's highlighting, once you are walking those "paths" it
becomes increasingly difficult to listen naturally and holistically
again...

Isn't that a problem for any kind of experienced listener? Haven't
most folks noticed how hard it is enjoying music on what you consider
an inferior system? Once you've heard something sound great, anything
less just doesn't seem to cut it.

Sure there is music that trancends the equipment it's played back on,
but in general after being exposed to good playback, it's more
difficult to not hear flaws.