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Audiophile EssentialsFeaturesHistoricalMusic and Recording Features
The Stereo Image
John Atkinson  |  Jul 03, 2018  |  First Published: May 01, 1981  |  40 comments
The author demonstrating stereo microphone techniques at an English audio show in 1981.

For most people the terms hi-fi and stereo are synonymous, and yet it is clear that there is still a great deal of confusion over what the word "stereo" actually means. There isn't even a consensus of opinion amongst producers of records, designers of hi-fi equipment, audio critics and music lovers as to the purpose of stereo, and considering that the arguments show no sign of diminishing in intensity, it is instructive to realise that 1981 sees both the 100th anniversary of Clement Ader's first stereo experiments and the 50th anniversary of Alan Blumlein's classic patent on stereo.

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FeaturesHistoricalJ. Gordon HoltStand Loudspeaker Reviews
Dick Olsher Dahlia speaker
Dick Olsher, J. Gordon Holt, Martin Colloms  |  Jun 07, 2018  |  First Published: Feb 01, 1986  |  0 comments
Do-It-Yourself (DIY) loudspeaker projects are quite common in the UK, where details about several excellent designs, including a recent one by Martin Colloms, have been published for public domain consumption. Stateside, the situation is rather grim, where only an occasional subwoofer project (always popular) makes it into the commercial magazines.
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Audiophile EssentialsFeaturesHistoricalReference
Listening Tests and Absolute Phase
John Atkinson  |  Dec 05, 2017  |  First Published: Nov 01, 1980  |  22 comments
The problem confronting the magazine reviewer when organising the necessary listening tests to accompany/reinforce the measured behavior of a device under test is complex. There has never been a problem with the measurement aspect; as long as someone has access to the same test gear—and full knowledge of the test conditions—then he should be able to replicate the critic's findings exactly (assuming an infinitely narrow spread of behaviour from sample to sample—a rasher assumption with some manufacturers' equipment than of others). However, when it comes to determining reliably the audible (or inaudible?) effects on music program by an amplifier/cartridge/loudspeaker etc. then the going gets tough.
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Floor Loudspeaker ReviewsHistorical
Quad ESL loudspeaker
Dick Olsher  |  Oct 10, 2017  |  First Published: Aug 01, 1987  |  1 comments
High fidelity took a giant step forward in 1956 with Peter Walker's introduction of the Quad ESL. Walker's research efforts had been motivated by his firm belief in the superiority of the electrostatic dipole over the box loudspeaker, but actually to take the economic plunge and market such a speaker was surely an act of bravery. After all, those were the pre-stereo, pre-audiophile days of the mid '50s, and the public's tastes and expectations were relatively unsophisticated. The average front end was abominable by today's standards, so that making definitive assessments of loudspeaker quality was a difficult task at best.
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As We See ItHistoricalJ. Gordon Holt
Don't Tell Your Friends!
J. Gordon Holt  |  Jul 03, 2017  |  First Published: Nov 01, 1962  |  3 comments
Stereophile's founder, J. Gordon Holt, photographed toward the end of his life by Steven Stone.

Editor's Note: The forthcoming August 2017 issue of Stereophile is No.451, but 55 years ago this summer, J. Gordon Holt was putting together the first issue of what initially was to be called The Stereophile. Here is Gordon's editorial leader from that issue, published in November 1962.

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Historical
The 1965 New York Audio Show
Lew Brown, John Koval  |  Nov 09, 2016  |  First Published: May 01, 1966  |  10 comments
Note: As our coverage of the 2016 New York Audio Show has just been posted, I thought it would be interesting to post our report from the 1965 show, in particular to see which brands are still around 50 years later.—John Atkinson

The 1965 New York hi-fi show was, to these observers, most notable for the marked increase in the number of exhibits which featured good—ie, classical—music for demonstration purposes. In the past, only about a half dozen of the exhibitors played any thing of musical worth, the rest of them evidently figuring they could make more noise with wild brass-and-percussion "demo" records.

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HistoricalJ. Gordon Holt
Test Your Hi-FiQ
J. Gordon Holt  |  Oct 19, 2016  |  First Published: Jul 01, 1968  |  5 comments
How do you rate as an audio expert? Test yourself on these 25 questions.

All of the following are multiple-choice questions, dealing with things that every audio hobbyist should know, either before or after completing the test. Most of them are easy, but take your time in answering and don't jump to conclusions. Some of the questions are quite tricky, and wrong answers will be subtracted from your final score, so read them and the possible answers carefully before committing yourself. Don't guess if you aren't fairly sure.

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HistoricalJ. Gordon HoltMiscellaneous
Revox G-36 open-reel tape recorder
J. Gordon Holt  |  Oct 06, 2016  |  First Published: Jul 01, 1968  |  4 comments
The Swiss-made G-36 recorder had earned an enviable reputation among perfectionists during the few years that it has been available in the US, and our inability to test one (because of a backlog of other components for testing) became increasingly frustrating to us with each glowing report we heard from subscribers who owned them. Now that we have finally obtained one through the courtesy of ELPA (footnote 1), we can see what all the shouting was about, but we also have some reservations about it.
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HistoricalReference
PASC & Philips' DCC
Peter W. Mitchell, Barry Fox, Peter van Willenswaard  |  Jul 05, 2016  |  First Published: Apr 01, 1991  |  2 comments
Editor's Note: In the 21st Century, lossy audio data compression, in the form of MP3 and AAC files, Dolby Digital and DTS-encoded soundtracks, and YouTube and Spotify streaming, is ubiquitous. But audiophiles were first exposed to the subject a quarter-century ago, when Philips launched its ill-fated DCC cassette format. What follows is Stereophile's complete coverage on both DCC and its PASC lossy-compression encoding from our April 1991 issue.—John Atkinson
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HistoricalReference
PDM, PWM, Delta-Sigma, 1-Bit DACs
Peter van Willenswaard, John Atkinson, Peter W. Mitchell  |  Jun 28, 2016  |  First Published: May 01, 1989  |  3 comments
Editor's Note: One-bit DAC chips in the 21st century, where the analog output signal is reconstructed from a very high-rate stream of pulses, are ubiquitous. But a quarter-century ago, those chips were only just beginning to stream from the chip foundries. In this feature, we aggregate Stereophile's 1989 coverage of the then-new technology, starting with Peter van Willenswaard on the basics.—John Atkinson.

1989 may well become the year of the D/A converter (DAC). CD-player manufacturers have, almost without exception, launched research projects focusing on this problem area of digital audio; many of these projects are already a year old. This is, however, by no means the only imperfection keeping us away from the high-quality sound we have come to suspect is possible with digital audio media, and maybe not even the most important.

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As We See ItHistoricalJ. Gordon Holt
Upward and (Hopefully) Onward
J. Gordon Holt  |  Apr 12, 2016  |  First Published: May 01, 1966  |  0 comments
Editor's Note from 1974: As you can read in the following "As We See It," the last issue of Vol.1 No.12 (cover dated "Spring 1966") was perhaps not as "strong" as it might have been. If we had been doing things according to Proper Business Practice, we should have held back our best articles and our gutsiest reports until that issue, as a high-powered incentive for our subscribers to renew their subs. We didn't. There were better articles and a greater variety of topics covered in earlier issues, but Issue 12 was significant in that it set the pattern of topic emphasis, and the balance of reports versus other editorial material, that was to continue more or less unchanged for the next 7 years.
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As We See ItHistoricalJ. Gordon Holt
The Weakest Link
J. Gordon Holt  |  Feb 16, 2016  |  First Published: Dec 01, 1962  |  5 comments
When the Record Industry Association of America adopted its standard disc playback equalization curve in 1954, hi-fi enthusiasts heaved a sigh of relief and bade fond farewell to years of confusion, doubt and virtual pandemonium. Before the RIAA curve there were six "standard" curves in use, and since nobody seemed to know who was using what, getting flat response from a disc was often more a matter of luck than anything else. The adoption of the RIAA standard playback curve heralded an end to all this.
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HistoricalJ. Gordon HoltThink Pieces
Amplifier Power: How Much is Enough?
J. Gordon Holt  |  Jan 21, 2016  |  First Published: Nov 01, 1962  |  18 comments
Considering the amount of careful research, cautious theorizing and wild speculation that have been lavished on the amplifier power question, we should expect to be considerably closer to the answer in 1962 than we were five years ago. This does not seem to be the case.
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HistoricalJ. Gordon HoltSolid State Power Amp Reviews
Infinity HCA power amplifier
J. Gordon Holt  |  Sep 15, 2015  |  First Published: Dec 01, 1979  |  0 comments
Imagine if you can a power amplifier with the bass richness, midrange liquidity, and high-end accuracy of the best tube amplifiers, and the inner detail, transient attack, and bass solidity and range of the best solid-state amplifiers. If you can imagine that, you can visualize what this amplifier sounds like.
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As We See ItHistoricalJ. Gordon Holt
The Flexible Firms
J. Gordon Holt  |  Jul 08, 2015  |  First Published: Oct 01, 1974  |  5 comments
Some years ago, we attended a hi-fi show in New York City where one of the exhibitors was RCA Victor. Their presence there would have been forgotten were it not for the fact that their exhibit, featuring their own discs played on their own line of phonographs, was producing some of the filthiest sound at the entire show. And that, in the proverbial nutshell, is why you never see reports in Stereophile on equipment made by RCA, Philco or General Electric.
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