Maybe your problem, besides the set up, was that the amps didn't work well with the speakers. Sounds like the speaker were not broken in either. I've just bought a pair of Helicon 800's and they sound fantastic. They totally disappear in the room. I am using Sim Audio gear, definetely better than Classe. I recently had a chance to listen to some Quads but they couldn't touch the Dali's. Soundstaging was similar but what a difference in dynamics.
Go listen again to a pair that is broken in and properly set up (not toed in).
Go listen again to a pair that is broken in and properly set up (not toed in).