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These $150k/pair monsters weren't playing either time I went into this room. But they win the prize for most "Awesome-Looking Speaker at the Show." And there's my favorite hotel carpet again!

One of the Command Performance AV rooms at Capital AudioFest featured Carnegie speakers, the CST-2 ($5999/pair), which combines a Mylar-film planar tweeter with eight 5.25" composite-cone woofers in a slim tower supported on a marble base. The speakers were driven by Manley Mahi EL84 monoblocks and a Manley 300B preamp, with the source a silent CommandPC server feeding 352.8kHz USB data to the Light Harmonic Da Vinci DAC that had impressed at the Atlanta Axpona. The DAC has been upgraded since Axpona: when handling 16-bit data, it would pad out bits 17–24 with 0s to give 24-bit data, which is standard practice. But in 2s-complement digital arithmetic, which is how audio data are encoded on a CD, there are actually two zero levels: 16 0s but also 16 1s, which represents a magnitude one LSB lower. Light Harmonic's engineers found that if they padded 16-bit data with 8 1s rather than 8 0s, the sound improved.

This room was pitch-black when I went in, so, sitting in the listening chair, I held my camera over my head, crossed my fingers and my heart, and pressed the shutter. What the flash revealed was a nicely finished pair of 2-way towers, the Carnegie CST-1s ($1999/pair) driven by an Onkyo Reference M-5000R 150Wpc amplifier. The CST-1 combines a 1"x3" Mylar-film planar tweeter with two 5.25" composite-cone woofers in a transmission-line enclosure. Carnegie's Ron May asked if I would like to hear some Nils Lofgren but to my surprise, he didn't select the track "Keith Don't Go" from the Acoustic Live CD, which has been a fixture at recent audio Shows. Instead he played me "A New Shoulder to Cry On," which sounded excellent. Carnegie is designing its products for the "Affordable Audiophile," an admirable goal.

This room was packed each time I poked my nose in, so I didn't get much of a listen. The company's website—www.cathedralspeakers.com—explains that "Once you hear your favorite music on a pair of Cathedrals, you will never go back to ordinary speakers." Driven by kit versions of AudioNote tube amplifiers, the big, two-way Cathedrals feature Eminence woofers in enclosures fabricated from hardwoods rather than the usual fiberboard, and produced an equally big sound. Price is $6995/pair for the Model 3113 being demmed, which has an Altec 811-B horn, $7995 /pair for the 7117, which has an Altec 511-B horn.

"Where's the tweeter?" I asked after a listen to the 97dB-sensitive Soundfield speakers, shown at Capital AudioFest in prototype form. It turned out the top drive-unit is a 12" coaxial unit, with the HF unit mounted where the dust-cap would be. "So the big-ass 18" dipole unit is the subwoofer?" No, it was explained, the18" unit in the speaker's center, behind the grille, is the woofer, covering the range from 50–200Hz. The bottom 12" unit, mounted in a sealed enclosure is the subwoofer, handling frequencies below 50Hz. With the coaxial and 18" drivers operating as dipoles and the bottom12" unit omnidirectional, by varying the crossover between the low-frequency drivers, the speaker's radiation pattern can be made cardioid in the region where room acoustics might benefit. I had seen a cardioid subwoofer designed by Ken Kantor many years ago at a CES, and had wondered why no-one else had experimented along these lines.

Although I had seen the 4-way, floorstanding Polk LSiM 707 ($4000/pair) at the Montreal Show in April, they weren't being demmed in an optimal room. But driven at Capital AudioFest by an Audio Research stack—CD8 CD player, Ref3 preamplifier, and VS110 power amplifier—and hooked up with MIT cable, they gave great sound on Keb Mo's version of "It Hurts Me Too" from his The Door CD, with extended low frequencies and impressive dynamics.

You can see that each woofer is mounted in its own internal chamber, the ports firing down. And there's that horrible carpet again!