The Mod Squad Line Drive System Control Center is a purely passive stereo switching unit with a volume and balance control, five line inputs, and additional facilities for two tape decks. It allows the audiophile to replace a preamp, with its active gain stagesand resulting colorationwith a device that introduces no distortion or coloration other than that in the wiring, switches, and controls.
The accuracy of a hi-fi system's "soundstage" reproduction seems to be of paramount importance these days, just as a component must now have "transparency" to possess hi-fi righteousness. If the system in which that component is used doesn't give good soundstage, then the system's owner has definitely fallen by the wayside. But what defines a good soundstage? Stereo imaging must have something to do with it, I hear you all cry. (I would have said stereo imagery until Larry Archibald pointed out that imagery has far less to do with hi-fi than with good writing, something I'm sure we agree has no place in a hi-fi magazine.) OK, what defines good stereo imaging?
It was eight years ago that I first met Aalt Jouk van den Hul. I was visiting Ortofon in Denmark, and, with a group of hi-fi journalists from all over Europe, was traveling by bus to visit the cartridge-production facility in the far south of that country. Bus journeys are not my ideal way of passing time; naturally I gravitated to the rear of the bus, where bottles of Tuborg were making their presence felt. One journalist, however—a pixieish fellow hailing from The Low Countries—resisted the blandishments of the opened bottles. Producing a sheath of black-and-white glossies from his briefcase, he announced that he had just developed the ultimate stylus profile!
The quest for a full-range electrostatic loudspeaker has occupied many engineers' minds for many years. The problems are manifold: large physical size (which can lead to room placement problems and poor dispersion), the difficulty of achieving high sound pressure levels, the need for a potentially sound-degrading step-up transformer, and the unsuitability for production-line manufacture. Even so, the potential rewards are so great that one can understand why loudspeaker designers keep on attempting the apparently impossible. Epoch-making models do appear at infrequent intervals, keeping the flame burning since the appearance of the original Quad in 1955: Acoustat, Sound Lab, and Beveridge in the US, Stax in Japan, Audiostatic in Holland, Quad, of course, in England, and now MartinLogan.
The Question of Bass: J. Gordon Holt A few issues back, in Vol.9 No.3, I used "As We See It" to clarify what Stereophile writers have in mind when they use the term "transparency" in equipment reports. This time, I'll do the same thing for the performance parameters of bass reproduction.
"I am not in love; but I'm open to persuasion," sings Joan Armatrading in her song "Love and Affection," the track I was playing when I finally realized that my attempts to get a sound from the Apogee Caliper ribbon speakers approaching what I had heard at the 1986 Chicago CES were bearing fruit. And that sentence pretty much describes the creed of the professional audio critic. Each new product that arrives at your door could be the one to pass the J. Gordon Holt "goose-bump" test, to leave the hairs on your arms permanently erect. Did the Caliper full-range ribbons excite my previously quiescent nerve-endings? Did Bobby Ewing return from the dead? Did Sam propose to Diane? Will Alan Alda ever outgrow Hawkeye? What on Earth made Georgette marry Ted Baxter? Why can't Tubbs roll up his jacket sleeves like Crockett? How could a fine actor like Jack Klugman accept such a dreadful role? Some of these questions will be answered overleaf, but in the meantime, what is a ribbon speaker?
It has become accepted lore in audiophile circles that the 44.1kHz sampling rate adopted for Compact Disc is too low. Some writers have argued that, as a 20kHz sinewave will only be sampled about twice per cycle, it will not be reconstructed accurately, if at all.
Whenever I think of cone speaker systems, I think of three brand names: Snell, Thiel, and Vandersteen. There are many good loudspeakers and many good designers and manufacturers, but it is these three who, in my opinion, consistently produce the best cone loudspeaker systems. All three companies produce full-range systems, transparent systems, and systems which mate well with a wide range of equipment. Their systems can be owned and enjoyed for years. Long after some fad or special feature has given a competing designer brief notoriety, these are the products you turn back to for music.
It is a widely held belief that musicians do not assess hi-fi equipment in the same way as "audiophiles." I remember the British conductor Norman Del Maran underrated conductor if ever there was onestill being perfectly satisfied in 1981 with his 78 player, never having felt the need to go to LP, let alone to stereo. And some musicians do seem oblivious to the worst that modern technology can do. I was present at the infamous Salzburg CD conference in 1982, for example, where Herbert von Karajan, following one of the most unpleasant sound demonstrations in recorded history, announced that "All else is gaslight!" compared with what we had just heard. J. Gordon Holt proposed a couple of years back ("As We See It," Vol.8 No.1) that sound is not one of the things in reproduced music to which musicians listen. I have also heard it said that even the highest fidelity is so far removed from live music that a musician, immersed in the real thing, regards the difference between the best and the worst reproduced sound as irrelevant to the musical message: both are off the scale of his or her personal quality meter.