RMAF 2007

The fourth annual Rocky Mountain Audio Fest is taking place this weekend at the Denver Tech Center Marriott. Registration was up 15% this year; snapped in the line in front of the registration desk at 9am was erstwhile Stereophile staffer Jonathan Scull (sensible suit, smart tie, and flashy glasses), these days a successful PR and marketing consultant.

Ayre and Vandersteen are two companies whose products have achieved an enviable reputation for excellence. I was, in fact, blown away by my listening experience in the Ayre room at RMAF 2006, and looked forward to an equally enveloping experience this year.

Perhaps you've experienced something similar. I recently invited members of the Bay Area Audiophile Society to hear my system. Many of them had visited our house before, but only to attend demos of other equipment that had been brought in specifically for the event. Now I finally had the chance to let BAAS members hear my system whole and complete.

Aerospace engineer James M. Harrell, Jr. debuted his Jumping Cactus Loudspeakers at RMAF 2007. Only available from jumpingcactusloudspeakers.com, these tri-amped, 120lb loudspeakers are housed in sealed aluminum cabinets that feature a Bubinga wood front panel. The speakers are said to have a high measured sensitivity of 94dB. With a frequency range of 65Hz–20kHz., a subwoofer is recommended. The speakers also come with an active XM44 4-way crossover by Marchand Electronics.

The penultimate room I went into on the RMAF's final day was being shared by SMc Audio and Audience. I was assuming the latter company was demonstrating its well-reviewed AC conditioner and cables, which indeed it was. But I was not expecting to see and hear loudspeakers from the Californian company. The ClairAudient LSA 16 (LSA for "Line Source Array) was designed by the late Richard Smith, cofounder of Audience, and features 4, 8, 16, 24, or 32 50mm drive-units, used full-range, with no tweeters or crossover (something I have not seen since the Ted Jordan designs of the late 1970s). A separate subwoofer handles the low bass and with a very high claimed sensitivity, the ClairAudient design will produce very high spls in-room, but with great clarity. The sound of the 16-driver version in the RMAF room was a little lacking in top-octave air, but was otherwise very detailed. The rest of the system comprised a McCormack Audio UDP-1 universal player, McCormack monoblock power amps, and a preproduction example of Steve McCormack's new SMc VRE-1 line preamp.

After a hard day's morning presenting my hi-rez digital audio dems, I wandered into the Marriott's Atrium to sip on a Starbucks Grande Cafe Mocha. There I enjoyed some fine singing and guitar picking from Dan Weldon on the Zu Audio stand. The Utah cable'n'speaker company, whose modification of the classic Denon DL103D cartridge will be reviewed in the December issue of Stereophile, was presenting live music throughout the Show, with their high-sensitivity speakers used as the PA. Nice one, guys.

As well as the excellent-sounding Avalon NP2 speakers, the system I used to play back 24-bit AIF files from my laptop consisted of (from top to bottom): Metric Halo ULN-2 to convert the Firewire output of my Apple PowerBook to AES/EBU; Bel Canto DAC 3 (which I enthusiastically review in the forthcoming November issue), sitting on cylindrical wooden footers from a new company Waipuna Sound and connected to the Metric Halo box via a DH Labs AES/EBU link; Conrad-Johnson CT5 preamp and ET250S hybrid power amplifier; and Nordost Thor AC conditioner. Nordost Valhalla interconnects and speaker cables were used throughout. Equipment rack was the attractive and effective Stillpoints, which suspends the acrylic shelves from four steel cables.