I don't believe you answered my question but instead discussed the F and M work from almost 100 years ago as an example of something.
AJ: "But regarding “how does it sound?” … well, there are just too many uncontrolled variables"
'Too many variables' to do what?
We’re talking past each other.
A major variable is that we all hear with our own ears and brain, not with someone else’s. This is the Fletcher Munson revelation.
The extent to which what you describe is useful to me is strongly tied to how closely your hearing algorithm maps onto mine.
After the physiological and psychological differences issues, the variables are simple and obvious. You know this.
There are performance tolerances even if we both have the same gear of the same amount of use. But we don’t have the same gear.
Room differences are always a factor. We do not have the same room, or the same room treatments.
And we rarely have the same value systems. One guy ponders whether he’ll hear the difference between a $200 interconnect and a $2000 interconnect. Another is wondering about the $10k interconnect vs the $25k interconnect. The first guy may decide a small difference is not worth the jump in price. The second guy might flip out over how worthwhile the price jump is in the second case.
I don’t have anything to say on this beyond :
I don’t care if reviewers get deals. I like deals myself.
I would NEVER consider a reviewer’s opinion to trump my own in my system.
Reviews are often entertaining, sometimes exasperating, and occasionally informative. Reviews are most useful as the introduction to a product … more useful than their cousin, advertising.