S888Wheel wrote:


And, too, a measurable difference is not necessarily audible.


Never said it was. However if there is no measurable differences between two
signals then there is nothing to discuss. They will make the same sound with
the same associated equipment.


The problem, of course, is that usually there is a measureable
difference between two components, since our measuring instruments are
so sensitive. Take two cables of the same make, one 3 ft long and one
3.1 ft long. There is a measureable difference. Heck, the lengths are
clearly different. And we can certainly resolve the 0.1 nanosecond or so
in delay. It would take an extreme subjectivist, however, to claim that
there is a sonic difference between those two.

The crux of the problem is in the disagreement on what differences are
detectible via listening only. Past research indicates that level
differences of less than 0.3 dB over the audio band are not detectible
by listeners. Let's be generous and tighten that to 0.2 dB. If we would
agree that this is the threshold of audibility, then we can prove fairly
easily that 99% of the cables and interconnects do sound the same.