Yes, and this is my entire point. I understand that people believe they hear all sorts of things. But that's a far cry from actually hearing something, in this case a change in distortion. Hence the need for measuring and blind tests. Maybe it's my 40+ years as a professional audio engineer, but I've understood the frailty and variability of hearing for a very long time. I don't understand why others who listen seriously don't understand this too.
--Ethan
May be just because they also really hear this sort of things ...
Do you really believe that audiophiles are crazy people with large imagination, and high-end manufacturers charlatans that exploit our craziness? That people who speak about 24bit/192kHz are just useless dreamers?