RMAF 2007

According to Marjorie Stiefel, who with her husband Al slaves over the Rocky Mountain Audio Fest for months on end, this year's RMAF has 142 exhibit rooms, 29 more than last year. The show, has in fact, not only reached the hotel’s size limit—the DTC Marriott is Denver's third-largest—but also exceeded Marjorie's and Al’s energetic capacity. Fried to a crisp beyond the smile, the couple is considering hiring help for next year in order to meet increased demand from such major players as Linn, McIntosh, Esoteric, dCS, Kimber, Wilson, BAT, Gamut, Clearaudio, Edge, Ayre, Nordost...you name them.

The NSR Sonic Research D3 Concerto Sonata loudspeaker ($4495/pair) was reportedly making a lot of waves at its world premiere. Displayed in not completely broken-in prototype form, with tweaking of crossover and capacitors still to come, the speaker is claimed to have 93.7dB sensitivity. The bottom of the enclosure features an exclusive "Acoustic Projection Lens." The lens, developed over the course of 30 years by its guitarist/luthier/locomotive engineer designer, is claimed to act as a sonic prism that overcomes randomly generated frequencies. The company also offers the much larger D1 Concerto Reference ($32,000/pair). Both speakers have back panels that intentionally resonate like an instrument, a feature that JA points out was first seen in the controversial Bösendorfer loudspeakers.

A definite eye-catcher, the $25,999/pair spherical Proclaim Audioworks DMT-100 speaker system features an external crossover that facilitates the ability to balance stereo output in difficult listening environments. (The crossover includes an L-pad bypass option to ensure "the cleanest possible signal path...for audio purists.") Each driver is independently mounted in a spherical enclosure cast from a proprietary high-density laminate. Fine-tunable for one's room, each driver can be adjusted up to 45° off-axis; they also afford up to 12" vertical and horizontal positioning flexibility for the tweeter and midrange modules. Daniel Herrington's babies, designed by ear, are so new that their sensitivity has yet to be measured.

Driven by the Triode Corporation Japan's TRV-M300SE 20W 300B parallel single-ended monoblocks ($4199/pair) and TRV-4SE tube preamp ($1799), and fed by a very-slow-to-cue dCS SACD player, the Cain&Cain Wall-O-Sound (W3) ($3300), designed by Gordon Rankin of Wavelength Audio, did a superb job reproducing the true timbre of a piano. Throwing a huge soundstage, with wonderful height and depth, this little system had me writing "really beautiful" in my notebook.

Toward the end of Day One, I encountered my Bay Area Audiophile Society buddy Jeff Wilson in the hallway. Jeff, a true music lover and long-time audiophile whose ears I trust, is about to open a showroom with Bob Kehn in Oakland, CA that will feature Magico, VAC, Silversmith, and other top-quality brands.

I couldn't resist the wonderful sounds of Louis Prima coming from the Green Mountain Audio room. Paired with Jaton Corporation’s Operetta AP2140A 2-channel Distributor amplifier ($1000, 140Wpc into 4 ohms, 70Wpc into 8 ohms), whose "processing filter circle eliminates 99.99% of noise at maximum volume," the intriguing-looking Green Mountain Calypso loudspeaker ($10,000/pair for the next month or so before the price increases 10–15%) was producing the kind of extremely smooth sound that draws you into the music. The speaker measures 88–89dB sensitivity, and utilizes a simple, first-order crossover to achieve "perfect" time-coherence. The midrange and tweeter are also adjustable forward and back for optimal sound in the listening position. The entire system, including the speaker, was wired with Marigo wire. I constantly find that Green Mountain's innovative designs produce lovely sound. Expect a whole new line of smaller, less-expensive speakers to appear on the Green Mountain website in another month or so.