Alright...Against my better judgement I shall order a pair and see for myself how they stack up against mt M50X's and MDR1A's. I'll bet pounds to pence they come nowhere near my Focal Classics. And I guess if I'm left disappointed it has something to do with my "chain".
I hope the hype is real because if it's not and is just hype and confirmation bias I'm going to be pissed at you lot and if they are the hidden gem I shall eat humble pie.
Or your ears have different preferences, or we're wrong -- definitely possible.
Earlier in the thread, I expressed serious skepticism at @BenF's contention that the B&O H6 are muddy and just bad compared to the Pro 82's, and after having received my Pro 82's and comparing them (briefly but just a few hours ago) to my H6, I still don't agree entirely with him (the H6 still sound right to me), but I was surprised listening to Daft Punk's "Fragments of Time" (good recording with real instruments) that I did think that the Pro 82 bested the H6 for clarity although not by a huge amount, and mostly discernible when quickly A/B'ing them.
I've not A/B'ed them with my HE-4XX, but listening to the same song right now with my HE-500, I think the HE-500 have substantially better timbre, but honestly clarity is pretty close. I also find the Pro 82 thin sounding comparatively when A/B'ing quickly between the HE-500 and Pro 82, and the only way I can get a little more satisfying, full sound is to go from the neutral position on the bass port (totally closed) to open one notch, but then a little detail gets lost that way.
However, if I'm listening to the Pro 82 for a longer listening session, my brain adjusts to the thinner sound and it doesn't sound so thin to me -- in fact, come to think of it, it's the same experience I had with the Beyerdynamic DT 1350, which sounded "small" and somewhat thin after coming from bigger and fuller-sounding cans, but which, like the Pro 82, began to sound bigger and fuller after my brain adjusted to them.
In any case, I won't be putting my HE-500 into storage anytime soon, let's say that. But then, I honestly begin with a bias for open / against closed cans, as a matter of preference anyway.