Both <A HREF="http://www.stereophile.com/artdudleylistening/1204listening/">Art Dudley</A> and Michael Fremer have praised Gingko Audio's isolation platforms in <I>Stereophile</I>'s pages, and at RMAF, the company was showing the benefit of its Cloud 10 platform on an Atmasphere tube power amplifier. Projected on the wall above Gingko's Vinh Vu (and onto his forehead!), real-time analysis showed the outputs of B&K accelerometers fastened to the stand the amp was sitting on and to the amplifier chassis, which was supoorted by a Cloud 10. There was indeed a dramatic reduction in the excitation of the amplifier compared with the stand&#151;especially at low frequencies.

When I walked into the room of Chicago-based Acoustic Technology LLC, I thought I was listening to speakers that only had tweeters, because the only visible drive-unity was a single 3" unit. Yet the sound, a recording of Rimsky-Korsakov's Schererazade, was definitely full-range,and the soundstaging, as you might expect from such a small radiating diameter and a narrow cabinet baffle, was well-delineated.

Having just heard a Bay Area Audiophile Society (BAAS) demo of the PS Audio Perfect Wave Transport ($2999), Perfect Wave DAC ($2999), and Power Plant Premier ($2199), all hosted by the ever-engaging Paul McGowan, I was very eager to hear PS Audio's front end powered by an early prototype of PS Audio's forthcoming class-D Perfect Wave amplifier. Using Focus Audio Master 2.5 speakers ($20,000/pair), two MartinLogan Descent subs, and a complement of Perfect Wave AC12 power cables ($699/meter) and older PS Audio speaker cables not currently on the market, the system delivered the kind of clean, impressively full range sound that has made PS Audio a legend in the industry.

After several years without distribution in the US, Peder Beckman of Norway's Electrocompaniet (kneeling on the left, next to company head Mikal Dreggevik) has quickly established a revitalized US dealer network that should number a good 10 by CES 2010. Without a long-standing reputation for affordable excellence, this would have been next to impossible to achieve in the current climate.

Where, you may ask, are the speakers? All you see are light fixtures.

Visiting the Soundsmith room is always a pleasure. Peter Ledermann's phono cartridges, preamps, and diminutive, how-can-such-a-little-box-produce-that-much-sound speakers always deliver superb sound.

I first discovered the Eficion F300 loudspeaker ($14,800/pair) at RMAF 2008, where its full-range sound deeply impressed for the price. Since then, the speaker has undergone numerous refinements. Split into two separate compartments, separated by Stillpoints, this is a 3-way 4-driver vented box with a frequency response of 25Hz&#150;40kHz, 89dB sensitivity, and 8 ohms impedance, with a minimum of 6.4 ohms. The front tweeter is an Air Motion Transformer, its rear-firing super tweeter a Heil ESS aluminum ribbon, and its 7" midrange and 12" woofer both from Aurum Cantus. All this has produced a more controlled and detailed sound. Other refinements are identified on the Eficion website.

At least two people I know came up to me in the hallways of the Marriott to urge me to check out Intuitive Audio's new Gamma Summit speakers ($10,000/pair). As soon as I walked into the room, the fabulous bass on Patricia Barber's rendition of "Keep on Using Me Until You Use Me Up"&#151;I'm guessing at the title&#151;told me why. The system's riveting presentation also featured the kind of musical highlights for days that audiophiles love. Next I heard the same Mahler Symphony 2 recording I've been playing a lot at RMAF 2009. The speakers did an extremely fine job of controlling and highlighting the bass line, and also sounded very vibrant on top. Congratulations to designer Dale Pitcher for a job well done.