Digital Processor Reviews

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Sam Tellig Posted: May 30, 2005 Published: Dec 01, 2004 0 comments
The X-DAC v3 replaces Musical Fidelity's Tri-Vista 21 DAC, which is no longer in production, although you might find some on dealer's shelves. The Tri-Vista 21 used two pairs of subminiature 5703 WB military tubes in the analog output stage. MF's Antony Michaelson called this Cold War tube, which is no longer made, a trivistor. The Tri-Vista 21 was last seen selling for $2395.
John Atkinson Posted: May 08, 2005 4 comments
Usually, a Stereophile "Follow-Up" follows up (duh!) a full review of the component in question. This review, however, is intended to flesh out a cryptic comment made by Wes Phillips in April's "As We See It": "When Apple introduced its AirPort Express wireless multimedia link," Wes wrote, "it even included a digital port so that an audiophile—such as Stereophile's editor—could network his system, using the AE to feed his Mark Levinson No.30.6 outboard D/A converter. 'Sounds okay,' deadpans JA."
Robert Harley Posted: May 08, 2005 Published: Dec 08, 1993 0 comments
I feel privileged to have followed the remarkable evolution of digital processors over the past four-and-a-half years. Since my first digital review—a survey of three modified CD players back in August 1989—I've been fascinated by the developments that have inexorably improved the quality of digitally reproduced music.
John Atkinson Posted: Mar 13, 2005 0 comments
Five years after the launch of the audiophile's dream medium, Super Audio CD, the format remains stalled in the market.
Art Dudley Posted: Jan 18, 2005 0 comments
Giuseppe Verdi gave the world more than two dozen operas, some good sacred music, and one string quartet. He also provided the young Arturo Toscanini with one of his first big breaks—conducting the singing of "Va pensiero" at his burial procession—and gave the flagship consumer product from England's dCS Ltd. its name. That the latter two gestures were posthumous and unwitting does nothing to diminish their poetry.
Robert Deutsch Posted: Jan 04, 2005 Published: Dec 05, 2000 0 comments
It's hard to know what the best strategy is for digital upgrades. Maybe you bought your first CD player when you became convinced that the format was going to succeed, and it seemed that players were about as good as they were going to get. Some time later, you tried one of the new outboard digital processors, and the sonic improvement was such that you just had to have it. Then you replaced the player itself with a CD transport, so you could benefit from improvements in servo control and digital output circuitry. At this point you were generally happy with your digital front-end—until you read about how 16-bit DACs (which is what your processor had) were old hat now that 20-bit DACs were available. But alas, your processor couldn't be upgraded, and was worth maybe 30% of what you'd paid for it. So you took a loss and bought a new-generation digital processor, and things were fine and dandy...for a while.
Kalman Rubinson Posted: Jan 02, 2005 Published: Jul 02, 2000 0 comments
HistoriCAL Introduction
California Audio Labs is a child of the digital age. Originally, they made a noise by offering modified CD players with tube output stages, a practice for which I found no intellectual justification. On the other hand, the results were successful, even if (probably) due to the CAL units' softening of the harshness of early digital sound.
Shannon Dickson Posted: Oct 26, 2004 Published: Oct 01, 1998 0 comments
Perhaps I shouldn't have been surprised when I first spied the prototypes for Sonic Frontiers' luscious new digital combo, the Transport 3 CD transport and Processor 3 D/A processor, at HI-FI '97 in San Francisco. After all, this is the company whose meteoric rise from an electronic parts-supply outfit run out of president Chris Johnson's basement, to a large factory pumping out an impressive array of entry-level to crème de la crème tube electronic components, has elevated Sonic Frontiers to front-line status among high-end manufacturers.
John Atkinson Posted: Aug 22, 2004 Published: Aug 01, 2004 0 comments
Sony Classical's head of engineering, David Smith, is a man whose opinions on sound quality I have come to respect. So when David e-mailed me a year or so back, enthusing over a new DAC he'd heard, I paid attention. When Lavry Engineering contacted me about reviewing their DA2002, I didn't need much persuading.
Kalman Rubinson Posted: May 16, 2004 Published: May 01, 2004 0 comments
Without having intended to, I seem to have collected several "statement" products. I've already reported on the Weiss Medea and Theta Digital Generation VIII digital-to-analog converters. I saw and expressed interest in the Nagra DAC at the 2002 Consumer Electronics Show, when prototypes of it were shown along with a forthcoming multichannel version, the Nagra Digital Audio Processor (DAP). The two units are based on the same chassis and interface, the DAP including additional modules and processing.
Kalman Rubinson Posted: Feb 22, 2004 Published: Feb 01, 2004 0 comments
We audiophiles are ever hopeful that, however satisfying our present equipment and setup, we can achieve even greater enjoyment with a tweak or an upgrade. And we never stop: It was only 16 years (and three turntables) ago that I bought what I declared would be my last turntable, and there's no doubt that this "dead" format has improved substantially since then. Now, even as we make another (but less paradigm-shifting) format transition, from CD to SACD and DVD-Audio, new two-channel DACs continue to appear that show us how far we still are from wresting all the music from the original "Red Book" 16-bit CD format. I reviewed the wonderful Weiss Medea DAC in February 2003, and there are still on my auditioning rack are two more Swiss DACs that might redefine the category: the Orpheus 1 and the Nagra DAP.
John Atkinson Posted: Feb 01, 2004 Published: Jan 01, 2004 0 comments
It was 20 years ago that I appeared on one of the UK's equivalents of NBC's Today show to comment on the launch of CD. I wanted to talk about digital technology, but my host was more interested in the medium's lack of surface noise, which he demonstrated by showing that a disc smeared with butter and marmalade—this was breakfast television, remember—would play without skipping. (Actually, it wouldn't play; after the jammy CD was loaded, the program cut to a pretaped segment in which the player had a pristine disc inside it.)
John Marks Posted: Jul 20, 2003 0 comments
The mind of man, when he gives the spur and bridle to his thoughts, doth never stop, but naturally sallies out into both extremes of high and low.—Jonathan Swift
Michael Fremer Posted: Apr 13, 2003 0 comments
Well into dCS managing director Mike Story's attempted explanation of upsampling, there came an epic moment when the ever-expanding universe of his thoughts—which we had been following to new heights of digital enlightenment—broke free of our collective grip, snapped back on itself, and caused a conceptual implosion of nearly cataclysmic proportions. The blank, spent expressions on the faces of the journalists gathered in the small attic-like meeting room at dCS's Great Chesterford (UK) facility all seemed to say, "What the hell was that? Was it just me, or did you feel that too?"
Kalman Rubinson Posted: Mar 23, 2003 0 comments
I have a warm spot in my heart for MSB's approach to product development. They come from a tweaker heritage and still practice the art: MSB will happily install a 24-bit/192kHz upsampler in your CD player, a 5.1-channel input in your DPL amp or receiver, and true 24/96 outputs in your DVD player. Their standalone products, starting with the original Link DAC, are designed from the start to include space for later additions and enhancements.

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