I heard the B&W P3 the other day, design and build quality is great, but the sound way too dark, what are they thinking? If I remove the pads the sound improves and treble returns, but that's not a good solution. The P5 sound much better, but they are too expensive and not foldable.
Two things here. The first is headphone placement. This actually causes a minor change in various areas of the spectrum. It can help clarity a bit as well as the veil. The other thing is burn in. These headphones do burn in and with time, the bass settles down a bit and clarity comes in better.