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You are correct.
It is not flattering to the manufacturers, or some owners of High End stuff, to read that their >3000 USD HPs do not have sonic qualities that would motivate their price tag.
Reviews are extremely important for sales.
A favorable review translates directly into increased sales. Love for the musical art is the motivating factor, it does not pay the bills.
I bought the Sundara a while back.
I recently sold my Edition X v2, and HE1000 V2 is soon gone too.
Sub-bas / Bas:
HE1000v2 is the winner here (Sundara, Ed X, HE1000v2).
Sundara has the right balance with respect to the rest of the spectrum, but HE1000V2 sounds slightly more defined and precise.
Ed X sounds too overemphasized.
I could feel the bass notes of the organ pipes actually shaking the cups (Sundara) during listening,
Mids:
Sundara sounds "veiled" and "shelved-down", in the mid.
Ed X is much more so.
HE1000v2 starts to loose some of its precision here.
But Sundara sounds more coherent than the other two, that sound not so good here.
Highs:
Sundara sounds rolled off.
ED X sounds very rolled off.
HE1000V2, sounds confusing, fuzzy and "weired" (i cant find a better word).
Sundara sounds more balanced than Ed X which is too lean and overtly warm, and slightly better than HE1000v2 here.
Soundstage depth, width, height
All three paint a big picture that is wide (HE1000v2), deep (Sundara, HE1000v2, Ed X) and tall (HE1000v2/Sundara).
Sundara is more precise and detailed which helps create more definition around the instruments and slightly clearer picture.
Ed X paints the same picture with less accuracy and less precision.
HE1000v2 is ok, not better than the others.
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Many reviewers believe that frequency response is everything, but it is not.
A while ago, I realized that although a rolled-off, tilted response that I liked back then, helped cover some of the shortcomings of many HPs and electronics, it created a "veil" that substantially detracted from the musical experience.
Like looking to the outside through a clean window, as apposed to a foggy one.
Please make sure to listen for yourself.