I recently bought a new set of phones. Audio-Technica ATH-M40x.
They're a bit shrill. It's been too long since I heard Sony MDR-7605
but like that. I pretty much top out around 10k now, but it's still a
thing.
Turns out, this is by design.
There is a thing now called the "Harman Curve". Yes, *that* Harman.
https://audiosolace.com/harman-target-curve-explained/
It includes about *10db* of 2nd-4th order boost at what looks like about
2k and 3-8 or so db at 20Hz.
And it's purely survey-oriented subjective. From the link:
"The research involved extensive blind testing on various individuals
trying out different headphones.
Based on what they liked and disliked, researchers found and defined the
*most universally liked* sound signature."
https://headphonesaddict.com/harman-curve/
Ouch.
--
Les Cargill
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