B&W exposed tweeter on top design....

I have heard all the technical explanations about why the tweeter benefits from an isolated location, but I really wonder if it is not just a styling feature for marketing reasons. Lots of excellent speakers have baffle-mounted tweeters.

Of course, if you have been reading my comments about "suspended speakers" you know that I do like the idea of having the drivers separated from room boundries as well as baffles (my planar speakers have no baffles). However, as sean points out, there are other ways to eliminate baffle effects, but none that so clearly identify the product from the marketing point of view.