I've enjoyed them at low volumes in the past, but I will agree that they need to be in a larger space and turned up enough to breathe a little in order to reach their potential. Still, I don't think they need to be cranked to 11 or anything. (although they certainly can be) People with a smaller space should probably get the LS6 instead.
On the flip side, I don't think many competitors can touch them when it comes to dynamics and scale while resolving such detail.