CEDIA 2006

Quietly tucked at the back of the main hall, Musical Fidelity had a lot of new stuff of great audiophile interest. First off is the new "audio Swiss Army Knife," as JA referred to it in his blog yesterday, the all-in-one, $9000 kW250. But among the other goodies on the Signal Path booth was the X-Package, consisting of the neat little X-RAYv8 24/192 upsampling CD player, the X-T100 60Wpc tube hybrid integrated amp, and the Triple-X power supply which powers both as well as an optional external DAC, tuner, etc. In their compact but non-resonant aluminum casings, this $3000 system was surprisingly potent.

Wendell Diller demos the "just been completed" Magnepan Automated Speaker. Essentially a Maggie MGMC1 ($725) in a wooden frame with a remote-controlled magnetic latch. When you're not using the speakers, they fold flat against the wall, looking like minimalist wall art. When you fire up the hi-fi or HT, click the button and the Automated Speakers spring into position, angling off the walls for best imaging. Price not yet determined.

Conrad-Johnson's Lew Johnson demos CJ's $7500 MET1 multichannel enhanced triode preamplifier. The twist? It's an analog six-channel preamplifier! It sounded exquisite, whether on two-channel sources or multichannel—only the MET1 can synthesize multichannel from the higher resolution two-channel PCM tracks present on many multichannel DVDs.

Bolzano Villettri showed its new 3000 series Campanile speakers as a 5.1 system. I was extremely impressed by the $9000/pair BV 3005 Torre, which feature BV's "Roundstrem Technology" that focuses the up-firing and down-firing drivers in the upper and lower cabinets into a 360° soundfield. In a huge convention hallway, the 3005 Torres actually managed to sing. I'd love to hear them under more favorable circumstances.

CEDIA is an installer's show at its core, so lots of exhibits have nothing to do with audio or video—many are about tools that make the installer's life easier. Some of them are small ideas, such as belt packs to carry cable ties in. Others,like the Little Giant folding ladder are big—and let me tell you, the Little Giants booth was hopping. Why not? It folds up small, and can be used as a straight ladder, step ladder, offset ladder, or staircase ladder.

Eminent Technology’s Bruce Thigpen has always taken an interesting slant on how to design audio products—his air-bearing tonearm was one of the best-sounding back in the day and his push-pull planar magnetic speakers are thought by some to be unbeatable. But at THE Show, held next door to the official CEDIA venue, the Convention Center, in the Denver Athletic Club, Bruce was showing off his infrasonic subwoofer. Yes, that’s a fan, which rotates at a constant 800rpm. The wrinkle is that the audio signal is used to vary the pitch of the fan blades. Feathered with no signal, when driven with audio the twisting blades produce a massive acoustic wave with very little power input. The bandwidth is limited by the fan speed to below 30Hz or so—you have to rotate it faster to reproduce higher frequencies but then its self noise increases rapidly— but it will reproduce frequencies as low as 1Hz with a very high spl.