If you missed Part 1 of this article (Stereophile, January 2005), or it has faded in your memory, here's a résumé. (Readers who recall Part 1 with crystalline clarity, please skip to paragraph four.) The accurate measuring of loudspeakers requires that the measurements be taken in a reflection-free environment. Traditionally, this has meant that the speaker be placed atop a tall pole outdoors or in an anechoic chamber. Both of these options are hedged around with unwelcome implications of cost and practicality. To overcome these and allow quasi-anechoic measurements to be performed in normal, reverberant rooms, time-windowed measurement methods were developed that allow the user to analyze only that portion of the speaker's impulse response that arrives at the microphone ahead of the first room reflection. MLSSA from DRA Labs is the best-known measurement system to work on this principle, and both John Atkinson and I use it in the course of preparing our loudspeaker reviews.
Pick an expletive—one you would normally use to express deep intellectual frustration—but don't vocalize it. Hold it in reserve for a few minutes, letting it simmer to concentrate its intensity. I'll tell you when to let rip.
Stereophile's "Products of the Year," now in its 13th year, recognizes those rare components that prove capable of giving musical pleasure beyond the formal review period. These are the components that can be recommended with no ifs or buts, that will grace any system in which they are used.
TEMPLES OF SOUND: Inside the Great Recording Studios
by Jim Cogan and William Clark; Foreword by Quincy Jones San Francisco: Chronicle Books, 2003. Softcover, 7.5" by 10", 224 pp. $24.95. ISBN 0-8118-3394-1.
Looked at from one viewpoint, DVD-Audio and SACD appear to be exercises in sheer profligacy. In the case of DVD-A, why provide a maximum bandwidth almost five times what is conventionally taken to be the audible frequency range, and couple it to a dynamic-range capability far in excess of that achievable by the microphones used to record the sound? In the case of SACD, why provide a potential bandwidth in excess of 1.4MHz, only to fill more than 95% of it with quantization noise?
The Compact Disc clearly hasn't read the script. At a time when, in the autumn of its commercial life, the format is supposed to be stepping aside to allow younger blood to succeed it, CD has instead in recent years enjoyed something of a revival in audiophile opinion. While SACD and DVD-Audio, rather strutting and fretting their hour upon the stage, are doing more plain fretting than anything, the best in CD sound quality has improved sufficiently for some to question whether we need the new media at all.
Since 1992, Stereophile has recognized components that have proved capable of giving musical pleasure beyond the formal review period by naming its "Products of the Year." These are the components that can be recommended without any ifs or buts, that will grace any system in which they used.
The science of recording music is, to apply a metaphor from a very different context, akin to "breaking a butterfly on a wheel" (footnote 1). The art of recording is to make it appear as though that pinned insect could still take wing. I have been devoted to both the science and the art of recording music since 1965, when I was given a Grundig ¼" open-reel tape recorder as a birthday present. You could even say that my evolving interest in audio and my current position at the helm of Stereophile date back to my finding out how different a Shure SM57 dynamic cardioid microphone sounded from a Reslo Ribbon, even in mono, even at 3¾ips, when captured on that Grundig.
And I used to think our annual "Records To Die For" issue was difficult. Whew! When it came down to choosing the 40 most influential rock/pop, jazz, and classical records of the past 40 years, during which this magazine has been the most honest and enjoyable source of high-end audio journalism, my initial list contained more than 200 choices. A painful paring-down process ensued, with input from every member of the Stereophile staff.
"Most important." That was the phrase I used when I e-mailed the members of Stereophile's extended family of reviewers and writers to ask for suggestions when I began to compile this list. I didn't want to be more specific because I wanted to cast the net as wide as possible. But there are many factors that make an audio component "important": design innovation, sound quality, sales figures, influence on other designers, influence on the evolving market, influence on system synergy.