Ah, the old b&o trick "use over-dimensioned amps to compensate for small box volume" :-)
Not the best way to build a speaker, as it often leads to non-linear behaviour - usual frequency plots look good, but when fed with a more dynamic signal (such as music) the result is not as good.
I'm not saying saying b&o make bad speakers, I'm just saying that their visual design leads to compromises. Om the other hand, I prefer that to having large ugly boxes in my livingroom :-) As usual, I'm more than willing to lose some in performance as long as I can have B&O's beautiful products and UI.