Tannoy Prestige Turnberry GR Limited Edition or ProAc D 30 R o RS

I appreciate this thread because I'm considering dual concentric speakers. Can anyone talk about how they would image and present the music differently than a more narrow, inert tower design? SO mush of what we her is in the design of the box.  I know Tannoy is very particular about box construction, so how dos this effect image? Is it very dimensional?  Some say image isn't important and that's fine, but they will never be in my living room either. 
FWIW I had Proac Response R2's and found them to be lively with depth, without getting bright. I've never heard the D30.