How are we “stuck” with expensive headphones to get “good” sound? Have you heard the HiFiMan Edition X or the Arya Stealth? I think the prevailing experts on this forum have been quite transparent that unlike DACs, measurements don’t tell the whole story with headphones.You are missing a part of the picture.
Yes, everything IS in frequency response, however, there is a big problem; our measurements are not detailed enough to work with to actually account for everything. We can't even get accurate measurements above 10 khz.
Not only that, but we don't know WHAT part of frequency response is responsible for every single aspect of sound.
If we ever get to the point where our measurements get granular enough and we know exactly what part of the frequency response corresponds/interacts correctly with what with more good research, then yeah, if we use a driver with low enough distortion, we could use convolution filters to accomplish whatever we like.
Until then, we're kinda stuck with expensive headphones to sound really good. I dunno about 5K USD headphones, but at least into the kilobuck range, at least from my experience.
I own the Edition XS ($459), the HE1000se ($3,500), the Sony Z1R ($1,799), the Focal Utopia ($4,400 at the time), the Meze Elites (I paid $3,500 for them) and the Arya Stealth ($1,299). I’ve also auditioned the DCA Expanse and Audeze LCD-4 for two weeks each. If I were forced to live with only one of them for the remainder of my life, I’d take the Arya Stealth with me without any regret over the others. And I wouldn’t be devastated over keeping the Edition XS either.
Since I got the Arya SE, I’ve not touched my Utopias, and I only reach for the Elites or the HE1000se for certain usage scenarios or specific tracks. Headphones these days primarily differ in tuning to the largest degree, and fortunately the two HiFiMan options are tuned perfectly (to my ears) right out of the box—with plenty of satisfying bass and zero fatigue factor in the highs.
In terms of other “premium” factors, they both have vast soundstages, plenty of bass slam, and formidable imaging, timbre and detail retrieval (the Arya outdoes the Edition XS in the latter category, but not extraordinarily so).
It is absolutely possible to get a terrific-sounding, versatile and high-performance headphone at a fraction of the latest $4,000 “flagship” cutoff these days, if you resist catering to marketing hype and the illusion that cost defines quality.