CEDIA show is interesting -- a lot of companies that cater to the custom install crowd introduce some interesting gear. Sure, a lot of it is pricey, but it's fun to look, right? Knoll is bringing a pair of products to the show; first up is the $8,500 HDP460 projector which we first heard about in March. The spec that gets our eye is the "D6500K color accuracy even with ambient light" -- this crowd definitely speaks our language. In another product category entirely, Knoll's GS8 (8-channels, $1,178) and GS12 (12-channels, $1,238) amplifiers with Eco-System circuits promise to keep your green lifestyle intact. The voltage rails only deliver current to channels actually in use; any of the channels that aren't delivering audio are actually turned "off," not simply muted or placed in a standby mode. When there's no audio flowing, the amplifier uses only 4-Watts. Sigh -- gone are the days of class A amplifiers that double as space heaters.