Best speaker I've ever heard are the Intuitive Design Summits (Model is PSL 624), with the only caveat being that it's been a long time since I heard the Old, 3 box version of the Audio Physic Calderas (which are floorstanders anyway), but I still think the Summits are probably better even than those. No other speaker (including monitors) I've heard has ever come close to the Summits. I've reviewed the Summits here on Audiogon.
-Bill
-Bill