I see. Strange, as the manual on my CM8 s2's insist on the plinth only being there to make it less susceptible to tipping over. Maybe the plinth is part of this iteration of B&W's "signature" moniker.
By the way, on the first photo it looks like the domes are attached without the plinth – might be a PR photo and not the version that made it to production, but still, that would be a much better solution IMO.
Edit: whoops, I see now that you mention it in the review, my bad
Thanks for the review Ed. I have to say I am rather taken with the 702 sig. Very nice.
I have the 603 in black, although they look more like a very dark grey. The plinth for them is optional. Coupled, they look industrial, and remind me of multi-story support pillars. But they do sound good.
Love the design of these speakers, though while I don't mind a good plinth, these ones are hardly fitting in with the design of the speaker. They are literally just a black slab. Not that I'm in the position of buying them of course.
There are of course plenty of alternatives, but owning a pair means you get to say you have B&W 7 Series Signature floor standers. Fine by many peoples standards.