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Robert Harley  |  May 28, 2019  |  First Published: Nov 01, 1994  |  7 comments
If there's one buzzword in high-end audio for the 1990s, it's undoubtedly jitter. "Jitter" describes timing variations in the clock controlling the ones and zeros that represent the analog audio signal. If that clock isn't stable to an extraordinarily precise degree, the sound quality of the digital processor will be degraded.

A CD transport/digital processor combination introduces jitter in three ways: 1) the transport puts out a jittered signal; 2) the S/PDIF or AES/EBU interface between the transport and processor creates jitter; and 3) the digital processor adds its own jitter to the clock. These additive factors are largely responsible for the great range in sound quality we hear from different transports and interfaces.

Kristen Weitz  |  Jun 14, 2019  |  First Published: Nov 01, 1994  |  22 comments
If you: 1) live in an apartment, condo, townhouse, dorm, or share a house or apartment with someone;

2) are going to, have recently graduated from, or have never gone to college and are not working at all, are working a minimum-wage job, or have just gotten your first job but have loans, Visa/MasterCard/American Express bills, a brand-new car payment, and can't afford to eat anything but macaroni and cheese anyway. . .

J. Gordon Holt  |  Mar 17, 1994  |  0 comments
High-end audiophiles are space freaks---we relish the warmth and spaciousness of a fine, old performing hall almost as much as we do the music recorded in it. But my attendance at a series of orchestral concerts held last summer brought home to me---as never before---the sad fact that our search for the ultimate soundstage is doomed to failure: we're trying to reproduce three-dimensional space from a two-dimensional system, and it simply can't be done.
Jonathan Scull, Sam Tellig, Barry Willis  |  Feb 03, 1994  |  1 comments
Editor's note: When Jonathan Scull reviewed the Shun Mook devices back in 1994, he unleashed a hailstorm of controversy that continues to this day. Below is his original report along with some of the follow-up articles and fallout.
Barry Willis  |  Apr 09, 2019  |  First Published: Feb 01, 1994  |  5 comments
One evening late last summer I took the most expensive workout of my life. In my hurry to meet a friend at the gym, I left the house, leaving my computer and hi-fi on despite the ominous look of the sky. In the South, experience teaches you to dash about disconnecting everything at the first sign of a thunderstorm. Usually I do, but this time my mind was elsewhere.
Jack English  |  Jan 23, 2013  |  First Published: Jan 01, 1994  |  81 comments
Slowly, painfully, high-end audio seems to be dying. We all know it but we're apparently unable to resuscitate the patient. US dealers are closing at alarming rates—it must be the economy. Women continue to avoid the High End—it must be the technobabble combined with male equipment fetishism. Younger people aren't hopping aboard—it must be all those other things competing for their money. (Then again, it might be the High End's abhorrence of rock'n'roll.)
Robert Harley  |  Nov 01, 1993  |  1 comments
Not that long ago, digital audio was considered perfect if all the bits could be stored and retrieved without data errors. If the data coming off the disc were the same as what went on the disc, how could there be a sound-quality difference with the same digital/analog converter? This "bits is bits" mentality scoffs at sonic differences between CD transports, digital interfaces, and CD tweaks. Because none of these products or devices affects the pattern of ones and zeros recovered from the disc, any differences must be purely in the listener's imagination. After all, they argued, a copy of a computer program runs just as well as the original.
Robert Deutsch  |  Sep 24, 1992  |  1 comments
"Equipment Reports," "Record Reviews," "Letters," "Industry Update," "Sam's Space," "As We See It," "The Final Word"---I read and enjoy them all. But the section of Stereophile I especially look forward to reading is "Manufacturers' Comments." How is the manufacturer going to respond to a review that's considerably less than 100% positive? Can they take criticism gracefully, or do they have an attitude? If I were a consumer considering purchase of one of their products, would their comments convince me that they'd be a good company to deal with? Are they uptight beyond reason, or do they have a sense of humor? Can they respond to a positive review without gloating?
Peter W. Mitchell  |  Aug 29, 2004  |  First Published: Sep 01, 1992  |  0 comments
Someday we may speak wistfully to our grandchildren about the "golden age" of digital audio when consumer formats (CD and DAT) contained a bitstream that was an exact bit-for-bit duplicate of the original studio master recording—not a digitally compressed, filtered, copy-resistant version whose sound is "close enough" to the original. Digitally compressed formats such as DCC and MiniDisc represent, in effect, a return to the pre-CD era when consumer-release formats were always understood to be imperfect copies of the studio original. Even the most ardent audiophile accepted the fact that LPs and mass-produced tapes did not, and could not, sound as good as the master tapes they were derived from.
John Atkinson  |  Jun 30, 1995  |  First Published: Jun 30, 1992  |  0 comments
One of the great imponderables in hi-fi is how much the vibrations of a dynamic loudspeaker's cabinet walls contribute to its overall sound quality. Studies by William Stevens in the mid-1970s showed that, with some speakers, the acoustic output of the enclosure could be almost as much as that from the drive-units. Since then, responsible speaker designers have worked hard either to damp cabinet vibrations or to shift them to higher frequencies where their effect on the music will be less deleterious.
John Atkinson  |  May 22, 1998  |  First Published: May 22, 1992  |  0 comments
Back in the Spring of 1990, Stereophile introduced its first Test CD. Featuring a mixture of test signals and musical tracks recorded by the magazine's editors and writers, it sold in large numbers—around 50,000 had been produced at last count. Even as we were working on that first disc, however, we had plans to produce a second disc that would expand on the usefulness of the first and feature a more varied selection of music. The result is our Test CD 2, introduced this month for just $7.95 plus postage and handling. With a playing time of over 74 minutes, the new disc should prove an invaluable tool to help audiophiles optimally set up their systems and rooms by ear—and the music's pretty good, too!—John Atkinson
Robert Harley  |  Jan 01, 1992  |  0 comments
Editor's Note: This article is now only available as an Audio Engineering Society preprint, under the title "The Role of Critical Listening in Evaluating Audio Equipment Quality," preprint number 3176. The price is $4.00 for AES members, and $5.00 for non-members; it can be ordered (currently on paper only, not as a downloadable pdf) by entering the number in the appropriate field on the preprint search page at the AES website.
Ben Duncan  |  Oct 10, 2019  |  First Published: Jan 01, 1992  |  10 comments
Power amplifiers fascinate me. In the past 15 years I've helped design and build over a dozen advanced models, with output powers ranging from 50 to 2500W, for a number of the UK's professional equipment manufacturers. To learn from others' ideas and mistakes, I've also repaired, measured, used, and reviewed hundreds of makes of amplifier. My experiences have led me to regard the power amplifier as one of the messiest, most imperfect pieces of electronic equipment in the record/replay path.
Stereophile Staff  |  Dec 18, 1997  |  First Published: Dec 18, 1991  |  0 comments
Every summer, I invite a representative sample of Stereophile's equipment reviewers to the magazine's Santa Fe HQ. For the third successive year, I decided to tape some of the free-for-all discussion that takes place and offer readers the opportunity of peeking over the participants' shoulders by publishing a tidied-up version of the transcript.
John Atkinson  |  Aug 27, 2007  |  First Published: Sep 01, 1991  |  0 comments
The most important change made to the system was one that held up the writing of my review of the Mark Levinson No.23.5 power amplifier for several months, such was its anticipated impact. Though my listening room is well-equipped with wall sockets, there are actually only two 15A circuits serving these outlets. Ever since I had converted what had hitherto been our house's master bedroom into my listening room, I had intended to run new circuits to it.

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