i'm telling you...find a music/pro audio place and listen to some A.D.A.M. speakers. The ribbon tweeter is amazing.
I'm not a big fan of horns. For shimmer without harshness, I don't think you can beat a ribbon design.
B&W was always a bit nasal to me...nice though but very "british" sound. Wanted to like Klipsch but never did. Most planar speakers require lots of power.
Many years ago I had a pair of these and they were great...don't know about these days though:
http://www.energy-speakers.com/v2/