Tube Preamp Reviews

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Paul Bolin Posted: Dec 07, 2003 Published: Nov 01, 2003 0 comments
Rudyard Kipling said that "never the twain shall meet." He was speaking of East and West, but in the world of audio, his adage has most often been applied to what has been the traditional chasm between the sounds of tubes and solid-state. Tube advocates thump the tub for the timbral and spatial glow, the absence of harsh, odd-order harmonic distortions, the harmonic completeness and holistic spatiality that only fire bottles can provide. Solid-state advocates point out the superiority of their preferred gear in terms of bass depth, power and control, low noise, and ultimate detail resolution. That chasm between the characteristic sounds of tube and transistor has narrowed appreciably in the latest generations of gear, as each type of circuit has become capable of embodying some of the other's trademark characteristics. But between the camps, friendly competition continues.
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Paul Bolin Posted: Oct 12, 2003 0 comments
What comes to mind when you think of VTL? If you're like most of us, enormously powerful tube power amplifiers are inseparable from the name. To contemplate VTL is to think of some of the finest-sounding, most potent amps ever built—from the late-1980s, 400Wpc Ichiban, the first massively powerful tube monoblock of the audiophile era, to the mighty Wotan and Siegfried amplifiers of today. All well and good, as far as it goes.
Robert Deutsch Posted: Aug 17, 2003 0 comments
For those who frequent the audio discussion groups on the Internet, the method by which Stereophile selects products for review seems to be a continuing source of fascination and conjecture. Supporters of fledgling manufacturers—whose products these Webcrawlers just happen to own—rail against the rule that products to be reviewed in the magazine must have at least five US dealers. Some suggest that Stereophile's selection of review products is all about catering to advertisers and friends in the industry, a process that seems intended to exclude their favorite products from consideration.
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Chip Stern Posted: Jan 26, 2003 0 comments
Rogue Audio's Magnum Ninety-Nine tubed preamplifier is derived from the original Rogue Sixty-Six that I reviewed in October 2000. The Sixty-Six was designed to offer consumers a taste of high-end performance in a vacuum-tube line stage. By constrast, the Magnum Ninety-Nine's pedigree is pure audiophile, with a more sophisticated mu-follower circuit topology aimed at the purest expression of performance.
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Chip Stern Posted: Nov 24, 2002 0 comments
Over the course of several months, during which time I auditioned the Vacuum Tube Logic TL-5.5 tubed line-stage preamp with a variety of power amps and loudspeakers, I began to reassess many long-held notions about the "characters" of solid-state and tube components. Sometimes the TL-5.5 revealed its musical pedigree with all the midrange juiciness and sublime textural detail that one traditionally associates with a triode front-end, while at others it evinced a level of focus, transparency, and frequency extension I more readily associate with solid-state purity—all in a stylish package featuring a remote volume control and a full range of performance enhancements that belied its affordable price.
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Kalman Rubinson Posted: Nov 24, 2002 0 comments
Unpacking and installing a new component is always cause for excitement, even if one does it with almost mechanical regularity, and the anticipation is greater when the component is from a manufacturer of almost mythic reputation. So when John Atkinson asked if I'd like to audition Nagra's new PL-L preamplifier, I feigned calm as I accepted the assignment, even while remembering those years in college radio when I had to schlepp big Ampexes and Maggies. The sexy, portable Nagras were the stuff of dreams. Finally, I thought, I'd get my hands and ears on one.
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Brian Damkroger Posted: Oct 03, 2002 0 comments
I had a wonderful audio moment the other night. It was late in the evening, after a long day. I was standing in the middle of my makeshift listening room—Trish's dining room—and in spite of the fact that we were moving in just a few weeks, I'd just unpacked and set up my combo of VPI TNT Mk.V-HR turntable and tonearm with Grado Statement cartridge and dug a box of LPs out of the stacks in the garage. I cued up Dave Brubeck's Time Out (Columbia/Classic CS 8192), and the first notes of "Blue Rondo à la Turk" froze me in my tracks.
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Sam Tellig Posted: May 12, 2002 0 comments
"It took long enough," as I said to Larry Fish and Roger Stockholm.
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Jonathan Scull Posted: Aug 28, 2001 0 comments
I like stories with happy endings.
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Jonathan Scull Posted: May 26, 2001 0 comments
The L2 Reference sits at the top of Lamm Industries' preamplifier line. According to the manual, its "unique" circuitry uses specially selected, superlinear, high-voltage MOSFET transistors that ensure class-A operation from input to output, with no overall negative feedback at any stage. All stages, including the high-current output buffers, are single-ended.
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Brian Damkroger Posted: May 08, 2001 0 comments
As part of my employer's never-ending attempts to transform me from an engineer into a manager, I am constantly being sent to seminars and courses, some of which are eminently practical—like "Managers and the Law," which taught us how to avoid getting ourselves and our company sued. Others are more esoteric, like a recent seminar on "paradigm shifts." A paradigm shift, we were told, is a fundamental change in the way we look at things, arising from a change in a belief so inherent that it's unconscious.
Kalman Rubinson Posted: Feb 28, 2001 0 comments
I've been attending the annual Consumer Electronics Show for years, and usually come away with the impression that there are too many "me-too" products. I see a numbing similarity of approach of manufacturers within a chosen discipline: solid-state power amps in black and silver bristling with heatsinks, single-ended triode amps with their glow reflecting from bronze or wood panels, MCPU/DSP-centered devices with sleek, flat cases and intimidating remote controls, etc.
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Michael Fremer Posted: Nov 26, 2000 0 comments
There's a whorish aspect to reviewing that some readers and industry critics never tire of mentioning, as if they've stumbled onto some great revelation: that we writers seem to flit from new product to new product, sometimes gushing like cracked fire hydrants over one amplifier one month, only to gush over another amp the following month.
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Chip Stern Posted: Oct 19, 2000 0 comments
It's a reviewer's privilege to be able to switch back and forth between tube and solid-state gear (or combinations thereof) as the mood or the assignment moves him. Still, I find I'm inevitably drawn back to the Epicurean delights of triode tube gear. When done right, there's an alluring musicality to it, like the breath of life. However, in any tube vs solid-state contest, the relative tradeoffs between tone and resolution—sweetness and articulation, euphony and frequency extension—must be taken into consideration.
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Michael Fremer Posted: Sep 19, 2000 0 comments
Audio Research's first 21st-century, audiophile-quality line-stage preamplifier combines retro-tech vacuum-tube amplification and power-supply circuitry with innovative, remote-controlled gain, balance, tape monitoring, and signal routing. The price is also 21st-century: $9995. As in ARC's Reference phono section, the Reference Two's pair of vertically mounted circuit boards results in a single, relatively tall chassis.

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