Now I understand that if I took the Bowers & Wilkins px7, I would regret not buying the Sony MX4, because apart from the sound I like all the "know-how". I regret that it was not possible to listen to different manufacturers, perhaps I would have chosen Dali altogether. You can’t draw a conclusion from the reviews that “they sound bad” and “one marriage is going on”, you just need to listen to the headphones and draw your own conclusions.