Bowers and Wilkins’ PX are among the best Bluetooth headphones I’ve tried in recent memory. It’s just weird it took a trip to the barber to get the best sound out of them. The PX are a $400 pair of noise cancelling headphones that launched to rave reviews for their classy looks and pristine sound. Unfortunately, my experience out of the box was not quite the same. The sound seemed to lack body, especially when noise cancelling was off, and more importantly, sound was dramatically better with it on. And then I got a haircut. It turns out my somewhat…

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