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Not only does the venerable vacuum tube refuse to lie down and die, as everyone predicted when audio went solid-state; it continues to deliver better performance than anyone had imagined it could. Only a few years ago, we could characterize "the tube sound" as being sweet but soft at the high end, rich but loose in the midbass, deficient in deep bass, and bright and forward, usually with excellent reproduction of depth. Since then, we've seen the introduction of what might almost be called a new generation of tube amplifiers, which rival solid-state units in those areas where tubes used to have weaknesses, but have given up little of the tube's sonic strengths.

<B>BEETHOVEN: Symphonies 1 & 3 ("Eroica")</B><BR> Wolfgang Sawallisch, Royal Concertgebouw Orchestra<BR> EMI 54501 2 (CD only). John Fraser, prod.; Michael Sheady, eng. DDD. TT: 77:15

"Cool bag! Can I see it?"

<B>Solamente una faccia bella?</B> <BR> At first glance, the Sonus Faber (pronounced <I>Fah</I>-bear) Electa Amator appears to be a typical minimonitor: a small vented box with two drivers. The speaker is significantly better-looking than Franco Serblin's first speaker system, the Snail, a subwoofer with two satellites attached via arms (see photograph in Vol.11 No.3, p.34). And, like the Oracle Delphi turntable or Goldmund Apologue speakers (the latter also an Italian design), the Amator's appearance has received at least as much attention as its performance. But is it just another pretty face?

Combine an electrostatic panel to reproduce music's midrange and treble with a moving-coil woofer for the bass foundation. For decades, this has seemed the ideal way of designing a loudspeaker: Each type of drive-unit is used in the frequency region for which its performance is optimized. The resulting hybrid should sing like an angel.

As strongly as I believe that the listening experience is the most reliable method of judging the quality of audio equipment, I've been biased against single-ended tube amplifiers because of their quirky measured performances. Without having heard single-ended under good conditions&mdash;much less living with an SE amplifier&mdash;I had concluded that many listeners must like them because they're euphonically colored by large amounts of low-order distortion and impedance interactions with the loudspeakers. SE amplifiers seem to be a departure from the goal of making the electronics transparent. Moreover, the range of loudspeakers suitable for SE amplifiers is so restrictive that I wondered why anyone would bother with these underpowered distortion-generators. I had fallen into a trap that I've repeatedly railed against: drawing conclusions without firsthand listening experience (footnote 1).