LATEST ADDITIONS

In the second room sponsored by Arnold Martinez' newly opened Tweak Studio (located in Chicago's Hyatt Downtown) and Colleen Cardas Imports, a SOTA turntable, curiously unidentified on the room's equipment list, and unidentified cartridge and tonearm, were making lovely sound with three products from PureAudio. Designed by Ross Stevens and Gary Morrison, formerly of Plinius, the redundantly titled PureAudio dual-mono vinyl phono preamplifier ($4500) joined PureAudio's dual-mono Control preamplifier ($9500) and Reference 65Wpc class-A monoblock amplifiers ($15,500) to drive My Audio Design 1920S loudspeakers ($3800/pair).

I first heard the dipole Orion 4 speakers ($14,750/pair with Analog Signal Processor), designed by Siegfried Linkwitz and manufactured by Wood Artistry of Healdsburg, California, at the 2011 AXPONA in Atlanta, where they were one of the best-sounding rooms at the Show. They were in too large a room in Chicago, but still managed to sound clean and natural, with a full range of frequencies, driven by Pass Labs amplification with DH Labs cabling. I refer you to me 2011 report for details on the speaker's design but new at Chicago was a refined version of the Analog Signal Processor, with closer-tolerance crossover components, and an amplifier/processor that obviates the need to drive the Orions with 6 or 8 amplifier channels and the resulting confusion of cables.

The Chicago Show was my second opportunity to hear the unique circular-arc line array speakers designed by legendary audio engineer Don Keele, who was for many years the speaker reviewer at the long-gone Audio magazine. The 5'-tall CBT36 covers a 36° vertical arc, and with its 72 ¾" tweeters and 18 3.5" midrange units, all sourced from Dayton, projects a tailored wavefront that both allows for a very wide sweet spot from where a stereo image can be perceived and doesn't fall off with distance in the usual manner. The speakers used a DEQX digital crossover and were being driven by an Acurus amplifier. They were operating down to 45Hz, below which a subwoofer took over.

In the second Kyomi Audio room, E.A.R. USA's Dan Meinwald was doing an effective dem of the Marten Django XL speakers ($15,000/pair) that Erick Lichte favorably reviewed in September 2012. He used a prototype CAT tube amplifier, a CAT SL1 Renaissance tube preamplifier, and an Esoteric K-1 DAC with standalone clock fed audio data from Amarra. Cabling appeared to be all Magnan. With the Swedish speakers set up firing along the room's diagonal, low-frequency room modes were tamed and vocal music blossomed, whether it was Peggy Lee singing "Fever," Paul McCartney singing a demo of "Mother Nature's Son," or Neil Young live from Massey Hall.

Both at and post-show, Buffer (aka L. Langdon Ergmann, Jr.) was charmingly apologetic. Having read my "As We See It," "There's No Business without Show Business," in the April issue of Stereophile just hours before I walked into his Laufer Teknik room, he knew that his inability to supply a list of components and prices, add a track to his Memory Player from one of my six USB sticks, or even tell me what music was playing on his own music server (as in "We don't have an internet connection, so we can't identify the track") had left him a prime candidate for the Duncecap Dealer of the Day award.

There was a lot of major explication going on in the Marantz room, as in you'll hear some music if only you'll entertain our track-punctuating spiel, but when I did hear a bit of Chris Jones on the just introduced Marantz Reference NA 1151 network audio player/DAC ($3500), my interest was piqued by the depth and weight of the sound. Better yet was Sensemayá from the Channel Classics hybrid SACD of music by Revueltas. Here, the new Marantz Reference SA 1153 SACD/CD player ($4000) and Reference PM 1153 integrated amplifier ($5000), feeding Boston Acoustics M350 loudspeakers ($2500/pair), surprised me with their big soundstage and engaging depth. Even if the core sound of the lowest percussion wasn't totally fleshed out, the way the system delivered what highs and lows the speakers (45Hz–30kHz ±3dB) could produce suggests this may be some of the best audio equipment Marantz has yet released.