Yep, it's a brightness in the midrange, which I attribute to the kevlar midwoofers for being present in most B&W speakers, and also a metallic tint somewhere higher in the treble. You need to listen carefully to voices you know very well, and also some wind instruments to be fully aware of what's going on.
Then there's the bass, which is a bit "boxy" though quite tout for bass reflex speakers.
Overall good speakers and for the price, I suppose a good alternative to Wilson Sophias/Watt Puppies and many other high priced big boxes pretending sound big and forceful.