By the way, MTG90 and I put this coaxial through the final stress tests today and it passed with no problems. It's amazing just how loud this speaker can get and still keep it's composure. We also listened to it in my living room using my vintage Pioneer 2 channel receiver. I'm not sure how much power I was feeding just the one speaker, but in a 13' x 22' room it would require 2 people to nearly yell to talk with each other.
In a sealed box crossed to a subwoofer it would easily take more power than you would ever feed surrounds.....or mains for that matter. I believe at one point this past week MTG90 ran his Behringer A500 to it in bridged mode.
Right now they're designed to sound a bit 'crisp', which I think is pretty good for surrounds. We also listened back to back to the Karma-10 with it's more laid back sound, which I prefer for the L/C/R. The 2 models would likely make one of the best bang for the buck theater set ups out there. For the SEOS speakers, the Karma-10 was the hidden gem that people just didn't order for some reason. I'd say these coaxials could also be considered hidden gems, but will likely get more attention.