Larry Greenhill

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Larry Greenhill Posted: Jan 13, 2010 1 comments
John Devore was using this diminutive integrated amplifier, the German-manufactured Acoustic Plan Mag Amp, to drive his new high-sensitivity loudspeakers. According to Jonathan Halpern, the US importer, the Mag Amp uses a tubed voltage-gain stage and an output stage comprised of two small transformers with dual primaries. He described it as the "world's first switching integrated amplifier, and added that it was designed by Lars Lundahl in the 1960s. The 19 kg stereo chassis offers 15Wpc into 8 ohms and will cost $18,500. It played both a 1980s recording of Ella Fitzgerald and one of Stravinsky's Pulcinella Suite with great dynamics, speed, and detail. This is the kind of odd and fascinating gem one can uncover at the end of a day when one is too tired to rush out of an exhibit room, and instead collapses on the couch to listen.
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Larry Greenhill Posted: Jan 12, 2010 5 comments
John Atkinson introduced me to English engineer Laurence Dickie, who was sharing our ride up the elevators to the 34th floor of the Venetian Hotel. Mr. Dickie is a well-known loudspeaker designer, responsible for the original B&W 800 and B&W Nautilus loudspeaker designs, and as well as the cute little Blue Room Minipods, and is now creating new products for South African company Vivid from his design studio in Brighton, England. "Dick," as he is known to his friends, designed the G1 flagship for Vivid, which retails now for $65,000/pair and was being demonstrated in the Convergence Audio suite with, among other things, the piano recordings John Atkinson made and wrote about in the February issue’s “As We See It.” Laurence is shown here with the smaller G2, which was being demmed in the Halcro room and so impressed Erick Lichte.
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Larry Greenhill Posted: Jan 12, 2010 4 comments
Vandersteen's $45,000/pair, time- and phase-correct, four-way, floorstanding, Model Seven loudspeaker made its debut at the 2009 CES but is now in production. I sat with Richard Vandersteen in his suite at the Venetian, and listened intently to his description of how he designed the Model Seven. He started by saying, "I didn't really understand the advantages of carbon-fiber as a material that could help speaker design until I built my own airplane." From there, he described how he developed a patent-pending sandwich of high-Young’s Modulus carbon-fiber skins bonded to a balsa-wood core for the mid-bass, midrange, and tweeter diaphragms, which combines very high stiffness for proper pistonic operation, with high self-damping. Carbon-fiber construction for the enclosure also allowed him to restrict the cabinet resonance to very high frequencies, where they will have no effect on sound quality. The drive-units use Vandersteen’s patented method of avoiding rear reflections from the magnet structure. The powered 12" subwoofer fires down at the floor. All this was evident when he played a vinyl recording of Holst's The Planets. The Model Seven, driven by Aesthetix amplification, played with unusual clarity and definition, and I could easily follow different motifs in this orchestral selection that I had not been aware of at home. From what I heard at the Show, I anticipate the Model Seven doing very well in the review scheduled to run in the March, 2010 issue of Stereophile.
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Larry Greenhill Posted: Jan 08, 2010 3 comments
On the first day of the Show, B&W announced the sixth generation of their flagship, full-range, three-way floorstanding 800 loudspeaker. The new 800 costs $24,000/pair and includes a transmission line-loaded, diamond-dome tweeter with a quad-magnet motor to increase sensitivity and dynamic range. Other features include a dual-magnet motor for the woofers, B&W's proprietary Kevlar FST midrange driver, a matrix enclosure and a crossover that includes silver, gold and oil construction Mundorf capacitors.
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Larry Greenhill Posted: Jan 08, 2010 40 comments
B&W's openng day press conference at the LVCC revealed an entirely new line of Diamond Series loudspeakers in a new piano-black finish. This new vintage comes from the line of monitors that included the Diamond Silver Signature ,an $18,000/pair high-end two-way that had been produced in a limited run of 1000 pairs. The smallest member of this speaker line is a two-way, stand-mounted monitor called the B&W 805 Series Diamond, a strong value at $5000/pair. The stands are extra, but are now available in black.
Larry Greenhill Posted: Feb 12, 2009 0 comments
Bryston's first CD player, the $2695 BCD-1, is a drawer-loading player with a front panel of polished aluminum. The slim disc drawer, engraved with the Bryston logo, sits in the panel's center. To the drawer's left are an infrared sensor and Open/Close button, then a two-line, 16-character alphanumeric display. To the drawer's right are the usual transport controls and a power On/Off button. All of these functions are also accessible via the BCD-1's remote control, as well as two more: Back and Forward. Hold down either and the player moves through the selected track at several times normal speed until the button is released.
Larry Greenhill Posted: Jan 25, 2009 0 comments
It's always fun to visit the Burmester Audio suite at the annual Consumer Electronic Show. Founder Dieter Burmester and CEO Udo Besser are upbeat, fun-loving personalities who enjoy demonstrating their latest home audio gear—that is, when they're not working on the latest updates to their sound system for the $2.1 million Bugatti Veyron 16.4 supercar. This past year they introduced their new B25 loudspeaker, an 88-lb floorstander. This "baby" Burmester's suggested retail price of $12,000/pair is only one-sixth that of Burmester's flagship speaker, the B100, only one-fourth its weight, and half its height. The design goals for the B25 were a less expensive, lighter speaker that was easier to set up, while retaining Burmester products' high-quality sound and good looks. Playing my own CDs through the B25s at the 2008 CES, I found them notably smooth and detailed; they also imaged well, and were particularly good at reproducing male voices.
Larry Greenhill Posted: Dec 19, 2008 0 comments
"How do you make an object common as a box iconic?" asked Bob Graffy, Snell's vice president/brand manager. He and Joseph D'Appolito, Snell's chief design engineer, were sitting in my listening room, discussing cabinet designs. Graffy noted that KEF had sought the same in their distinctive, silvery, cylindrical Muon loudspeaker ($150,000/pair). For the flagship model in their Illusion series, Snell commissioned Gerd Schmieta, former designer for Ideo, to integrate D'Appolito's wish list for an ideal enclosure: a narrow, rounded upper baffle for the midrange and tweeter, wider at the base for the woofers, holding a constant cross-sectional area while maximizing cabinet volume, and compliance with a 15° tip test.
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Larry Greenhill Posted: Aug 20, 2008 0 comments
With the popularity of home-theater systems, subwoofers have proliferated. Because multichannel AV receivers are designed to provide a properly filtered, line-level subwoofer, or low-frequency effects (LFE) signal, many subs no longer come with built-in high- and low-pass filters for insertion into two-channel audio systems. However, the PB13-Ultra subwoofer from SV Sound does include these, which is what piqued my interest in it. After Ed Mullen, SV Sound's director of sales, assured me that the PB13-Ultra was capable of reproducing solid 20Hz organ-pedal notes in my listening room, I asked for one to review.
Larry Greenhill Posted: Jun 17, 2008 0 comments
Back in March 1998, Revel's Ultima Salon1 floorstanding loudspeaker generated quite a stir at Stereophile (Vol.22 No.3). Our reviewers were impressed by its seven designed-from-scratch drive-units, its ultramodern enclosure with curved rosewood side panels, exposed front tweeter and midrange, rear-facing reflex port and tweeter, and a flying grille over the mid-woofer and woofers. In the December issue (Vol.22 No.12), the Ultima Salon1 ($16,000/pair) was named Stereophile's "Joint Speaker of 1999" for its "big bass, timbral accuracy, low distortion, dynamics, lack of compression, and best fit'n'finish."

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