Larry Greenhill

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Larry Greenhill Posted: Jan 16, 2012 0 comments
Skullcandy, a manufacturer of trendy headphones, put up a huge multi-level exhibit in CES's Las Vegas Convention Center South Hall. In general, I was surprised at the large amount of exhibit area purchased at the Las Vegas Convention Center South Hall by headphone manufacturers this year at the CES. It dwarfed the spaced occupied by audio manufacturers of home quality equipment, taking many times the space occupied by home audio amplifiers and loudspeakers.
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Larry Greenhill Posted: Jan 16, 2012 0 comments
Harman Specialty Audio introduced the new Revel Performa 3 series of loudspeakers at the 2012 CES. Kevin Voecks, lead audio engineer in the design, was delighted at the increased performance of Performa 3 series, including the $4500/pair, three-way, F208 full-range floorstander and the $1750/pair M106 two-way bookshelf. The F208 replaces the more expensive, $7500 F32 Performa in the previous series.
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Larry Greenhill Posted: Jan 16, 2012 0 comments
Brent Hefley, Marketing Manager of Ayre, walked me through the circuit layout of Ayre's newest amplifier, the $14,950, dual-mono, 200Wpc (8 ohms) VX-R. Based on the well-regarded and long-established MX-R monoblock and introduced at the 2011 CES, the VX-R uses Ayre's ultra-fast printed circuit board materials. Ayre is expecting great things, Brent told JA, from its recent hiring of ex-Classé and Linn engineer Alan Clark, who joins Charlie Hansen and Ariel Brown as the Colorado company's creative engine.
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Larry Greenhill Posted: Jan 16, 2012 1 comments
The Audio Power Labs exhibit took my breath away, Imagine, a huge, beautiful $175,000 per pair, 200Wpc monoblock tube amplifier using 833C, graphite-plate, radio-frequency transmitter tubes that have a bandwidth of 30MHz and run with 1500V on the plates! These tubes were used in the output stage of BCF-1 radio transmitters. Now imagine that the amplifier's designers are named Squeek Rieker (right) and Peeya Iwagoshi (left), and you know why I had to pinch myself to make sure I wasn't dreaming.
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Larry Greenhill Posted: Jan 16, 2012 0 comments
Paul Stookey, now 74 years young, sounded optimistic, vibrant, and sweet, delivering a solo performance to the audiophile crowd at the Flamingo, as hosted by T.H.E. Show, Cary Audio, and PBN Audio. Somehow Paul has retained all the youthful energy and optimism that characterized his role when was a member of the Peter, Paul and Mary trio. Although I associate him more with the flower child, utopian, flower-child world of the 1960s, celebrating love, sex, freedom and occasionally drugs ("Puff the Magic Dragon"), he easily slipped into the role of audiophile troubador. Although his vocal range had narrowed with the years, his guitar accompaniment was superb.
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Larry Greenhill Posted: Jan 16, 2012 1 comments
Soulution Audio's Cyrill Hammer was on hand to discuss the company's "small" Soulution 501 mono Amplifier ($55,000/pair). Similar in design to the Soulution 710 stereo amplifier that had so impressed Michael Fremer in the August 2012 issue of Stereophile, the more diminutive 501 monoblock amplifier is rated at 125W into 8 ohms, utilizes six switching-mode power supplies, and features a high-bandwidth, zero-feedback voltage-amplification input stage. Unlike the 176 lb Soulution 710 stereo amplifier that required three good men to move into Mikey's listening room, the 501 weighs in at a "mere" 80 lbs per chassis.
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Larry Greenhill Posted: Jan 16, 2012 0 comments
Luke Manley and Bea Lam of VTL were on hand as host and hostess at the VTL exhibit suite at the Venetian Hotel to present their two new stereo tube amplifiers, the $33,500, 400Wpc S400 Series II amplifier, and the $10,000, 200Wpc S200 Stereo Signature amplifier shown in the photo. Although the S400 was configured into a floorstanding tower and the S200 in the rack-mounted chassis used for their MB-450 monoblock amplifier, both new products feature VTL's latest tube technology, including fully balanced, differential input stage, VTL's SmartTube technology with automatic bias and screen supply adjustments and fault sensing, and a new user-adjustable damping factor feedback control. The feedback loop amount can be precisely set to suite the listener's taste via three-position switches located between the input tubes on the top of the chassis.
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Larry Greenhill Posted: Jan 16, 2012 0 comments
I visited Burmester's President, Dieter Burmester, in the German company's Venetian Hotel Suite. As well as high-end audio products Burmester also manufactures high-perfomance music systems for the Bugatti Veyron and Porsche sports cars. I mentioned that I saw Dieter's likeness in a sketch for an interview with him and Richard Chailly that appears in the latest Christophorus, the Porsche's owner's magazine. That led to chat about our favorite automobiles, and from there to high-end audio. Dieter hopes putting high-end audio in the Porsche Panamera and 911 automobiles will introduce high-end audio to a younger but affluent generation now focused on limited-fidelity MP3 on their iPods.
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Larry Greenhill Posted: Jan 13, 2012 2 comments
Ypsilon Electronics’ Demetrius Baklavas designed the new $36,000/pair Aelius monoblock amplifier. The Aelius is rated at 220W into 8 ohms, 308W into 4 ohms, and 500W into 2 ohms. It is a hybrid design that features tube inputs, hand-wound interstage coupling transformers, and MOSFET output devices wired in the same type of push-pull Circlotron output configuration that was found in some Output-Transformer-Less tube (OTL) designs. The Circlotron configuration was developed years ago by Electro-Voice, and while the Aelius's output devices are all N-channel MOSFETs, the Circlotron approach is very different from conventional quasi-complementary approaches.
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Larry Greenhill Posted: Jan 13, 2012 0 comments
JL Audio's home high-end audio subwoofer engineer, Brett Hanes, proudly shows off the company's new $1700 ES-112 subwoofer (wood finish) that uses clever engineering principles to coax better performance and value from a less-expensive product. The ES-112's woofer features the company's only dual-spider driver construction, a smaller voice-coil, though the cone is designed for the same 3" peak–peak excursions found in the company's flagship f212 and Gotham models. Other construction simplifications—you change line input voltage by changing fuses in external fuse holder—make the product more adaptable for international sales. It also has a high-pass output with variable frequency crossover, which will be appreciated by those of us using subwoofers in a two-channel home audio system.

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