The second Listen-Up room featured PSB Synchrony One speakers ($5000/pair) driven by the NAD M2 Direct Digital amplifier ($5999), both of which were very favorably reviewed by <I>Stereophile</I>. Source was the NAD M5 CD player, wired with AudioQuest cables. Listen-Up has been a B&W dealer pretty much for ever, so I was surprised to see them take on PSB; a staffer told me that B&W's <A HREF="http://www.stereophile.com/news/bw_heads_to_magnoliaville">recent decision</A> to have Best Buy sell its affordable speakers led this specialty retailer to look for an additional high-quality loudspeaker line to carry.

Featured in Listen-Up's third room was a bevy of new gear from Canadian manufacturer Simaudio: the Moon 310D phono stage ($1799, which Michael Fremer falls in love with in our January 2011 issue), the Moon 300D D/A processor ($1600)&#151;this handles digital data with up to 24-bits word length and 192kHz sample rate via both S/PDIF and USB and uses 32-bit Sabre DACs&#151;Moon 350P preamp, Moon 400M monoblocks, and Moon CD3.3X CD player. (Apologies for not noting the prices of these components.) Analog was being played on a Sumiko RM10-1 turntable, and the speakers were Sonus Faber's Elipsas ($18,000/pair).

I followed my visit to the <a href="http://blog.stereophile.com/rmaf2010/physical_sound_from_kaiser_gte_aud… Acustica</a> room with a stop in a room occupied by Tidal Audio, dCS, and Argento Audio.

A familiar dem track was playing when I entered the large room from Colorado Springs retailer Audio Limits: "There'll Be Some Changes Made," from Mark Knopfler and Chet Atkins. However, rather than LP or CD, it was being played back from a PC running the J-River player and feeding the well-regarded Weiss DAC202 Firewire D/A converter ($6670). Speakers were the beautifully finished Venture Reference II Signature ($135,000/pair), which combines an AMT (Air-Motion Transformer) tweeter with a 7" graphite-coned midrange unit and four 8" graphite-coned woofer. Amplification was the Swiss FM Acoustics 811 Mk.II amplifier (455Wpc into 8 ohms, $128,800) and the FM Acoustics 245 preamp ($23,200). Power conditioning was by Isotek and Audience; racks were from Harmonic Resolution Systems. The full-range sound was superbly clean and effortless, but I couldn't help thinking that the room was not doing justice to this very expensive system's potential.

A familiar face and voice stopped me in the corridor outside the MC (Music Culture technology) room. It was MBL founder Wolfgang Meletzky, who, following his recent departure from the Berlin-based company, has started a new company to produce more affordable electronics and speakers. The system Meletzky was demming was based on the MC RL31 3-way tower speaker ($10,000/pair), this a conventional dynamic-driver design rather than the omnidirectional type that MBL was renowned for, driven by the MC801 power amplifier (180Wpc, $3300) and MC601 preamp ($3500). Source was an Onix CD player, as MC's own player had been held up in shipping. I listened to the Dutch Turtle Records CD of Sting's "Walking on the Moon," played by a trio of saxophone, double bass, and drums. The sound offered sharply defined transients, a natural midrange, and excellent low-frequency extension, and despite the room being one of the smaller ones in the Marriott Tower, the system's high frequencies were in natural balance with the rest of the spectrum.

I had been impressed by the sound Classic Audio were producing from their T1.3 Reference speakers at last March's Axpona Show in Florida. In Colorado, the Michigan-based company was using the smaller T3.4 speakers, which still use a field-coil–energized 15" woofer and Fostex horn tweeter, but with slightly smaller, Tractrix-flare midrange horn crossing over at 300Hz rather than 250Hz. The speakers were being driven by Atma-Sphere M60 tube monoblocks and an MP-1 preamplifier.

"Good grief, those look like Apogees," I muttered as I went into the Analysis Audio room and saw the Analysis Omega planar-ribbon speakers ($22,000/pair). Driven by Arion HS-500 hybrid monoblocks ($5995/pair), which combine a tube input stage with a class-D output stage, the speakers sounded a bit too warm in the upper bass on Jennifer Warnes version of Leonard Cohen's "Way Down Deep," but this could well have been a room effect. The soundstaging was to die for, in terms of stability and accuracy.

Perhaps the very prettiest gear of all I saw at RMAF was in the room occupied by Kaiser Acoustics, GTE Audio, and Fono Acustica. This was also the most </i>physical</i> sound I heard at the show; this system, more than any other I heard at RMAF, seemed to bring the musicians and instruments into the room with really impressive body and force.

See those little, white, star-shaped things? Those are room-tuning accessories from Stein Music. These were scattered, perhaps haphazardly, about the room&#151on the floor in front of an equipment rack (as seen here), as well as affixed to the walls and ceiling!