Hyperion (not to be confused with Aperion) may be a small speaker manufacturer, but expect to hear more from them and about them in the future if their new HPS-968 speakers are any indication of what they're up to. Yes, like most exhibitors at the show, they were demonstrating 2-channel only, and with 35W monoblock tube amps to boot. (I didn't catch the amp brand, but wasn't looking closely at amplifiers at the show). Judging speakers with tube amps if you plan on using them with solid state can be dicey. Apart from any inherent sonic signature the amp may have, the output impedance of many tube designs often interacts with the impedance of a speaker to produce very real frequency response deviations that can be both measured and heard. That's fine if you plan on using tube amps with the speakers (even more appropriate if you plan to use the same tube amp you listened to in the audition), but solid state amps are generally far more neutral in the way they interact with speakers. That's why if I'm auditioning speakers at a show, I prefer that they be driven by a good solid-state amp. Nevertheless, the Hyperion HPS-968s sounded wonderful—in my opinion one of the best sounds at the show. And yes, Hyperion does make both a center channel and smaller models, the latter suitable for use as surrounds.