The scan version of the vifa ring rad is better but not by a whole lot and the differences between each quickly become laughable when you consider its £50 vs. £250. If the Scan ring rad was £100 then it could be considered reasonable value. But its one of those statement drivers that seems to get pushed up high as the best thing around, its not that at all.

I've never heard of the JBL ring radiators before, I've just done a quick google and they certainly look interesting.