The Grills have magnets on them where Axiom has plastic tabs. The magnets "click" into place on the face of the speaker. The Energy C-3's have grills like that. I believe the B&W's do now as well. It's a nice little feature. Not quite as "cheap" looking as the plastic frames on the Axiom grills. Certainly not a big deal, but being a step ahead of the competition is quite often in the small details.