i never actually heard them, just lusted after them. the single driver speakers i had definitely did some things no other speakers do. just really quick. but at the expense of lots of stuff. in the end though, its hard to believe i'd be getting a better value with ampeggios over ATC. Plus I don't want to commit to having no low end. i can imagine having two setups just to indulge my curiosity, but it's really quite a bit of money for paper drivers. I have that kind of spidey sense tingle that tells me it may be a bit of snake oil hype. my current ethos is to embrace physics and get fuckin' big speakers. it feels more objective to me. i can definitely say that it's likely i won't ever buy a different brand (or pair) of speakers, i don't really feel a wanting for anything. if i ever move into a fancy urban setting i may be forced to switch or just run them very low, but who knows.