Robert Deutsch

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Robert Deutsch Posted: Jan 18, 2012 0 comments
Stephen Mejias has written about Anssi Hyvönen of Amphion, who believes that music reproduction doesn't have to be loud to be effective, and that, in fact, the hallmark of a really good speaker is its ability to be involving at low levels. Amphion's demos always provide for a soothing experience at shows, and so it was at CES 2012, this time using the new Argon7Ls ($5999/pair) with Nuforce electronics.
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Robert Deutsch Posted: Jan 18, 2012 0 comments
Totem is expanding their Element line, which features bass drivers running full-range up to the tweeter’s passband. The latest speaker in this line is the Ember ($4200/pair) a two-way using a 6" Torrent driver designed and made by Totem. Driven by Boulder electronics, a pair of Embers produced a full-range sound, with the sort of bass that made you wonder if there was a subwoofer in the system. Not bad for a 6" driver!
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Robert Deutsch Posted: Jan 18, 2012 0 comments
Checking out the Reference 3A speakers (Grand Veena, MM de Capo i, etc.) in Divergent Technologies' room at T.H.E. Show, I noticed that the center of the midrange and mid-bass drivers looked different. Divergent's Tash Goka was not in the room, but the person who was there introduced himself as the one responsible for the modification of these drivers. He's Ricky Schultz, inventor of the Surreal Acoustic Driver Lens, a small plastic device that is glued to the drive's dustcap, and has the effect of broadening the dispersion. The Surreal Acoustic Driver Lens is being incorporated into the production of all Reference 3A speakers. It's an OEM product, not available to consumers, and, according to Schultz, it has the potential to improve the performance of many loudspeaker drivers. He proceeded to provide me with the explanation of how the device works, but it quickly went over my head.
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Robert Deutsch Posted: Jan 18, 2012 0 comments
The business card of Dali's Kim Kristiansen states his position as "Director, Innovation." And, to judge by the illustrated talk he gave, Kristiansen and his associates at Dali have been working hard at producing innovations. The drivers for their latest speakers have a new linear drive magnetic system that uses a soft magnetic compound (SMC), which radically reduces distortion. Listening to the well-known recording of Misa Criolla on the demo system with the Epicon 6s (Primare CD player and electronics), which incorporates all the latest advances, I was impressed by the clarity and precise focus on the voice of José Carreras.
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Robert Deutsch Posted: Jan 18, 2012 0 comments
This Kim Kristiansen slide illustrates the effectiveness of Dali's SMC/linear drive magnetic system in reducing distortion. I believe the lowest curve shows the distortion levels of this the woofer—built completely in-house—that uses the linear drive magnetic system with SMC.
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Robert Deutsch Posted: Jan 18, 2012 4 comments
Although I don't consider myself an expert on headphones by any means, I know that they fall into three basic categories: (1) circumaural (pad around the ear, the back closed or open) (2) supra-aural (pad on the ear), (3) in-the-ear (tightly or loosely fitting). (There were also the Jecklin Float headphones, which involved a pad on top of your head, with the transducers being positioned some distance from the ears. These have never enjoyed widespread success, and I don't think they're being made any more.) However, I was intrigued by one of the pre-CES emails, announcing "ear-free" headphones.
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Robert Deutsch Posted: Jan 16, 2012 0 comments
Joseph Audio's Jeff Joseph is always a smiling, positive presence at CES and other shows, and always seems to have something new in his speaker line, even if "new" is defined as "finally in production." This describes the Perspective ($11,800/pair), making good sounds with relatively affordable Bel Canto equipment ($2995 digital receiver and CD3 transport). The tie Jeff is wearing has cartoon figures designed by Joshua Joseph, Jeff's 11-year-old son.
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Robert Deutsch Posted: Jan 16, 2012 1 comments
A close-up of the Joshua Joseph-designed tie. A 2012 CES highlight!
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Robert Deutsch Posted: Jan 16, 2012 0 comments
I know of speakers where, depending on the crossover, the same 5" or 6" driver is used as midrange or as woofer, but I've never encountered a speaker where a driver normally designated as a tweeter also functions as a midrange. This is the unusual design approach taken by McIntosh in some new speaker models, including the $10,000/pair XR100, and, judging by the sound, it certainly works for them. The driver is a 2" metal dome: eight of these are combined to serve as midrange, with two more as the tweeter flanking a supertweeter.
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Robert Deutsch Posted: Jan 16, 2012 0 comments
Atlantic Technology's AT-1, which uses their patented H-PAS venting technology, was one of the hits of last year's CES, and the positive impression was confirmed in Erick Lichte's review (September 2011). The H-PAS approach has now been applied to the new AT-2 ($1800/pair). The –3dB point is specified as 41Hz, which I'm told is an anechoic figure. This normally translates to in-room response to the low 30s, and the sound of the AT-2 in the Venetian's less-than-ideal space seemed to confirm this.

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