The thing about standard objective measurements is that they are
reliable & replicable. That's just not true of subjective judgements.
OTOH, are objective replicable measurements necessarily
valid? How do we know that they are measuring what people want hear? Jim Austin asserts that while Toole & Olive's testing scientifically establishes what "Joe Average" likes best under testable conditions, he wonders whether their approach really measures what the individual audiophiles want to hear -- personal preferences are totally ignored.
What is true for speakers is just a true for electrical components. ASR does great objective measurement which are, presumably, replicable, but can or should Amir
et al. attempt to address some subjective aspects? I note that Amir usually gives his subjective impression of speakers but rarely pf electrical components.
I have personal hypotheses regarding amplifiers in particular. The reason people like tubes and zero-feedback amps is because they produce relatively more 2nd and/or 3rd order
vs. higher order harmonic distortion, because:
- It sounds nice, often described as "harmonically richer", "organic", or simply "musical"
- It masks higher order harmonic distortion in reproduction chain. (It's been known since antiquity that higher harmonics sound discordant and increasingly unpleasant)
- It can often improves recordings that weren't well recorded or mastered.
I wish some scientists would test these hypotheses systematically. Then maybe the harmonic spectrum as well as THD could be routinely reported and informed comment made pertaining to likely individual preferences.