Signed up to head-fi just to comment here. Already gathered research here on the PX, and dis so again before I pulled the trigger on the PX7. So thanks for the help everyone!
TL;DR = got the PX7 a few days ago, love them, new daily drivers.
My B&W headphone journey started with the original P5 and P7 back in the day. Never had the P7W.
Late this summer I was in the market for decent over ear BT headphones to screen out the city noise some.
Btw, on a message board where some ppl will list headphones they had in '99 in their signature I'd be much more interested in what genres a person listens to when they comment on the SQ of a pair of cans, but hey, that's just me I guess...
So for what it's worth, while I hate headphones with "artificial", boomy bloated bass that bleeds into the rest of the frequencies (talking about you XM3s, Beats etc of the world) - I do mostly enjoy bass heavy genres like all sorts of electronic genres, (t)rap, lo-fi, and then a bit of classic rock and acoustic stuff on top that. So I personally do enjoy a hefty, yet well articulated bass that at least reminds me of the joys of the bass wobbling through my bones during a live performance - thank you very much!
As you will already be able to imagine after this long winded preamble I hated the PX; and yet I wanted to love them oh so badly. What a sexy looking pair of cans, I find them quite a bit better looking than the PX7. And I am a sucker for B&W headphones, period. The PX for me tho were dull & liveless, after burn-in that was. The sound bored me to tears, to be quite honest. Oh did I mention the barely tolerable comfort...
So after like 20 days I gave up on them. I was glad I found the Aiwa Arc-1, which I really didn't wanna like with their bland design, non-premium touch and feel, no ANC (the PX had crap ANC but still helped getting some work done in noisy places) - but at least their sound put a big fat smile on my face and made me dance through the apartment (and stayed in place while doing that, thanks to much lower weight than PX).
Had been waiting for the PX7 to finally get released ever since the announcement.
I gotta say, I wasn't impressed when I first threw them on. They didn't sound as clear as the Arc-1 (I crap you not, if you never tried those and aren't the flat-bass type, give them a whirl just for finding out what $149,- can get you in a BT headset in 2019 (but that's neither here nor there)), and the low end was a bit meh at first; certainly better than PX but not very tight IMO and not dark enough for me (I need that sub-bass son!); but as Someone here mentioned they just tick all the boxes. ANC is much (!) improved IMO, so is the comfort for hours on end, most comfortable B&W headset I know (never tried P9 tho). Smaller footprint when compacted, battery life, features (big fan of wear sensors ever since the AirPods came out). Speaking of the wear sensors, on the PX those worked perfect for me, even tho I had shoulder-length hair (expected them to give me trouble after all the complaints here); on the PX7 they do a spotty job thus far. Firmware Update is needed! A bit heartbroken about pleather instead of that soft as hell lambskin...
But hey, without crushing my skull these stay in place and keep their seal while dancing/moving around!
And the sound? Don't know if it's the headphones getting better (~20h playtime now; but I'm a skeptic) or my brain habituating, but for me it's a winner. They remind me of the P7... I see why they won't be for PX fans, sorry guys, but those were an aberration. These are fun again, thanks B&W for listening to your customers