Audacious Audio

In its comparatively few years in the marketplace, the line-level preamplifier appears to have established commercial parity with its full-function big brother. That this was inevitable was clear as far back as the mid-'80s. The advent of the CD and the proliferation of digital sources argued for a modular approach to preamp design. In such an environment, line-level sources (eg, DAT, CD, even analog tape) deserve special attention.

I've heard a lot of great audio components over the years, but even in that steady stream of excellence, a few have stood out as something special. These are the products that, in their day, set a new standard for performance, and many of them are ones I wish I'd hung on to. Among these products are three preamps from Audio Research: the SP3A, the SP6B, and the SP10 (footnote 1). I know I'm not alone in viewing these models as classics.

One of the most striking aspects of high-end audio is that you can never take any component for granted. Most of the radical change in audio at present takes place in new front-end and speaker technologies, but other components are changing as well—and with at least as much impact in making recorded music seem believable.

The Jadis Eurythmie speakers ($37,000/pair) arrived in a multitude of oversized boxes. Importer Northstar Leading the Way's Frank Garbie dragged them into our downstairs lobby and broke them open, elevatoring the individual modules up to our door. This happened on one of my office days, but Kathleen pushed me out the door in the morning with a "Don't worry cherie, I can handle it..." She phoned in periodic updates on Garbie's progress. Remember that old Stan Freberg routine? "I got it, I got it...I don't got it!" I arrived home just in time to hook up the amps.

A recent (unpublished) letter to the editor argued that the reference for audio perfection is the sound of real instruments in a real space. The writer claimed that, since the art and/or science of audio is advancing, and because it is a "scientific truth" that the closer you get to perfection, the less divergence there is components, that therefore there should be less difference in sound among the components listed in Class A of Stereophile's "Recommended Components" than among those in Class B, much less Class C. This should be true of loudspeakers, he said, but even more true of top-rated amplifiers, since "they inherently have less divergence."

For a manufacturer to squeeze money from the stone that is my CD-player budget, his products would have to be both exceptional and affordable. And as long as I'm reporting from Fantasyland, I'll ask that they also be obsolescence-proof.

The phenomenon of the "singing flame" has been known since the 19th century. Place electrodes either side of a flame and, if you apply a high enough audio-modulated voltage to those electrodes, the ionized particles in the flame will cause it to emit sound. (Search YouTube for "singing flame" and you'll find many examples.) This principle was developed into a practical loudspeaker in 1946 by a French inventor, Siegfried Klein, who confined an RF-modulated arc to a small quartz tube, coupled it to a horn, and called the resulting speaker the Ionophone. An intense radio-frequency electrical field ionizes the air between inner and outer electrodes to produce a distinctive, violet-tinged yellow flame in the quartz combustion chamber. When the RF field is modulated by the audio signal, this causes the almost massless ionized flame to expand and contract in what should be a perfectly pistonic manner.