John Atkinson

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John Atkinson Posted: Jan 15, 2014 1 comments
I’ve had a couple of conversations the past couple of years with mastering engineer Dave Collins about the D/A processor he was designing for Manley Labs, the company run by his wife EveAnna Manley. The 2014 CES saw the consumer debut of the Heart Monitor Controller 24/192 DSP ΔΣ [Delta-Sigma] DAC, which was being demmed in a system featuring Manley’s 25th Anniversary monoblocks, which use KT120 tubes. There are four digital inputs and Dave has kept the fully differential signal path as short as possible. Silicon includes a SHARC DSP and AD1955 DAC chips and harmonic distortion has been kept to a superbly low –120dB, and even that is the subjectively benign second. Price has yet to be decided.
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John Atkinson Posted: Jan 15, 2014 0 comments
Like Stephen Mejias at the 2013 Rocky Mountain Audio Fest, I have been impressed by the German Zellaton speakers when I have heard them, both at shows, and at a dealer event I attended in 2012 at Fidelis Audio in New Hampshire. With foil-covered drive-units, a crossover from Duelund Coherent Audio, and driven by Trinity balanced phono and line preamps and 200Wpc CH M1 amplification from Switzerland, the three-way Reference speakers sounded forceful and detailed.
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John Atkinson Posted: Jan 15, 2014 0 comments
Jon Iverson already reported on the Antelope DAC, but as I have just favorably reviewed their SCM 7 v.3 minimonitor for the forthcoming April issue of Stereophile, I was more interested in the active ATC SCM100SL Towers in the room. This speaker combines ATC's proprietary soft-dome midrange driver with a 1" tweeter and 12" woofer, tri-amped by ATC's Anniversary amplification. With a laptop running JRiver Media Center feeding data to the Antelope Zodiac-Platinum DAC with its Voltikus power supply, the 24/96 transfer of Steely Dan's "Babylon Sisters" was reproduced with tight, well-controlled low frequencies.
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John Atkinson Posted: Jan 15, 2014 2 comments
Loudspeaker manufacturer Angel Sound from Las Vegas was a new name to me, but I was drawn into their room at CES by this striking-looking speaker, which resembles a flame. Called, according to my notes, the S8, the speaker uses ScanSpeak drivers, can be supplied in custom colors, and costs $180,000/pair. The system in use featured Angel Sound DAC, amplifier, and cables, with a C.E.C transport, but the adverse room acoustics prevented me from forming any real opinion of the speakers' sound quality.
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John Atkinson Posted: Jan 15, 2014 0 comments
"One touch," that’s all it takes for you to enjoy your music, said B&O CEO Teo Mantoni, introducing the Danish company’s BeoSound Essence music-streaming system to the press at CES, and compared that one-touch solution to the current compendium of 10 swipes and presses that you need to playback a Spotify playlist from your smartphone. Mr. Mantoni is holding the elegant Essence Remote in his hand; a ring around the small aluminum puck controls volume and play/pause, forward and backward buttons are embedded on the top. The circular puck is available as wall-mount and desktop versions, and a remote box both connects to the playback system and is the center for AirPlay streaming, DLNA streaming, Spotify Connect, QPlay and Internet radio stations.
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John Atkinson Posted: Jan 14, 2014 7 comments
Jon Iverson reports elsewhere on Light Harmonic's cost-no-object Sire DAC. But the bigger buzz at the 2014 CES was the LH Labs Geek Pulse, a desktop DAC and headphone amplifier. Except that this product does not yet exist!
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John Atkinson Posted: Jan 12, 2014 0 comments
The CES is traditionally where we give awardees their well-deserved Products of the Year awards. Here is the complete line-up for 2013, waiting in the Stereophile room at the Venetian, just before the show started on Tuesday January 7.
John Atkinson Posted: Dec 30, 2013 Published: Jan 01, 2014 10 comments
Whereas the Pass Labs preamplifiers are designed by Wayne Colburn, the power amplifiers are the work of company founder and high-end audio veteran Nelson Pass, who even lays out his own circuit boards. The X-model amplifiers, beginning with the X1000 in 1998, were the first implementation of Nelson Pass's patented Supersymmetry topology (see "Nelson Pass on the Patents of Pass"). The XA series, which debuted in 2002, combined Supersymmetry with the single-ended class-A operation of the Aleph series. The XA.5 models offer detail improvements over the XAs.
John Atkinson Posted: Dec 05, 2013 3 comments
In more than 37 years of working at audio magazines, I have never reviewed an Electrocompaniet product. With this review of the company's ECD 2 digital/analog processor, which costs a dollar short of $3100, that streak of inattention has come to an end.
John Atkinson Posted: Dec 02, 2013 9 comments
With the help of 20:20 hindsight, it looks as if I made a decision when I joined Stereophile: to review a loudspeaker from Wilson Audio Specialties every 11 years. In June 1991, I reported on Wilson's WATT 3/Puppy 2 combination, which cost $12,740/pair in an automotive gloss-paint finish. This was followed in July 2002 by my review of the Wilson Sophia ($11,700/pair). And now, in December 2013, I am writing about the Wilson Alexia, which costs a not-inconsiderable $48,500/pair.

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