First of all: Whatever the sound quality you hear, I do not recommend BOWERS & WILKINS Px7 S2 because of the mjor bugs they have.
I have been using BOWERS & WILKINS Px7 S2 intensively for about 2 weeks. The sound of music is fantastic BUT. There is always “but”, isn’t it ? There are at least three reasons made me give them up and why I returned them twice ( the first time they had to be reset twice to turn them on) to the store. Firstly : the operation of WEAR SENSOR is absolutely unacceptable. Whatever you set it up (low-normal-high) causes that even the slightest movement of the head (up-down-left-right) turns the music off immediately !!! This also, all walks (not to mention running) these headphones with wear sensor feature turned on become useless. Even sitting comfortably in the armchair turning your head in any direction turns off the music, which makes these headphones useless. Yes, of course, this system can be completely disabled but for what it’s there for ! Secondly: Noise Canceling is also a very weak compared to other headphones at this price. For example NC in Technics EAH-A800E ,at half the price works much, much better ! Thirdly: the B&W Music application is very modest but it is ok. Unfortunately, its launch is very slow which can also be annoying. Moving on to conclusions. Perhaps B&W will be able to correct this annoying drawbacks that prevents the normal use of these headphones in a new, future software update . However, without this certainty, I will probably opted for much cheaper and certainly without these errors: The latest Sennheiser MOMENTUM 4 Wireless, SONY WH-1000XM5B ANC (already tested in "battle") or even B&O ANC Beoplay H95.
But if these bugs do not bother you, and your priority is the quality and tone of the sound, these headphones can be a great choice.
I do appreciate all the comments.