Mirage had a 36" mock-up of their omnipolar tweeter array on the wall, photographed here by Kalman Rubinson. A lot of people (well, me) thought it was real.

Kal Rubinson adds: I turned a corner and saw what any normal person would think was the world's largest ash-tray but, given the context and my psyche, I thought it was Mirage's all-out effort at a center-channel speaker. I grabbed Bob Gassel, Global Director of Training for the Klipsch Group, hoping to have him tell me that this was indeed the ultimate center-channel solution but he disappointed me: It's only an outsized model of their OmniPolar driver. Too bad. I made Bob stand in the picture to give you a sense of scale.