I've only had limited exposure to single driver speakers. The ones I've heard have that certain magic about them that draws you into the music, but only with "simple" music. Give it anything that rocks, and they become confused and congested. Very similar to Colin's comparison of SET to the reluctant virgin.Granted, I haven't them all. Are there any single driver speakers out there that can rock like a multi-way? Is the confusion I'm hearing due to intermodular distortion?