A.C. Wente of Bell Telephone Labs was apparently the first person to get the bright idea (in the 1930s) of measuring sound transmission in a small room. A loudspeaker at one point reproducing pure tones of constant power, and a microphone at another point measuring sound-pressure levels, gave him the means to assess the room's impact on sound quality. The measured frequency response was so ragged that I'm positive the venturesome Dr. Wente was duly shocked.
Following my reports on 13 mainly inexpensive loudspeakers that have appeared in the last four issues of <I>Stereophile</I>, I thought I would give myself a treat this month by reviewing the latest incarnations of a model that has stood the test of time: the two-way Celestion SL600Si...This is a carefully tuned infinite-baffle design, sacrificing ultimate extension for upper-bass and lower-midrange quality. Its crossover is conventionally British in that it puts flatness of on-axis amplitude response ahead of time coherence, while everything about it, from drive-units to the cabinet itself, is flagrantly "high-tech."
When some unknown copywriter coined that immortal phrase to promote the worldwide launch of Compact Disc in late 1982, little did he or she foresee how quickly it would become a term of ridicule. Yes, early CDs and players offered low background noise, a flat spectral balance, and freedom from wow and flutter. But all too often, the music encoded in the "perfect-sounding" pits seemed to have taken a vacation, leading the renowned recording engineer John Eargle to offer, in the medium's defense, that if you were to hear just one CD that sounded good, digital technology would be proved to be okay.
Imaging, imaging, imaging. That's what I thought when I first heard the Sonus Faber Electa Amators reviewed by Jack English last October. How could such small speakers create such a wide, deep soundfield? John Hunter, president of Sumiko, Ltd. and importer of Sonus Faber products, was amused but not surprised at my reaction. I did the natural thing and begged for a review pair.
I must admit that even before I connected up this amplifier I was put off by the accompanying literature. B&K makes some persuasive points about the validity (or rather the lack thereof) of some traditional amplifier tests, but the literature was so loaded with flagrant grammaticides, syntactical ineptitudes, and outright errors that I could not help but wonder if the same lack of concern had gone into the product itself (<I>eg</I>, the term "infrasonic" is used throughout to mean "ultrasonic"). Good copy editors aren't that hard to find; B&K should have found one.
High-end-audio manufacturers are both more and less adventurous than their more mainstream contemporaries. While mainstream-audio manufacturers will almost invariably change their models every year, the changes are more often than not cosmetic—at least in between successive models. High-end manufacturers, on the other hand, will keep the same model in the line for several years, but make cosmetically invisible refinements along the way.
Although I still haven't been able to listen to the Cary Audio Design 805 single-ended tube monoblocks that <I>Stereophile</I> praised so highly a year ago (Vol.17 No.1, p.104), I've recently auditioned many other tubed single-ended designs. Undeniably, a good SE design has a distinctive quality of harmony and atmosphere in the midrange that reaches well beyond the average attainment of its solid-state brethren.