Thomas J. Norton

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California Audio Labs Tempest II CD player

CD Player/Transport Reviews Audacious Audio

Thomas J. Norton | Jul 26, 2010 | First Published: Oct 26, 1988 | 0 comments

Snickering was heard from the major consumer electronics purveyors when California Audio Labs came out with the original Tempest, their first CD player using tube output stages. But not from the audiophile community. It was, all things considered, an inevitable product; I'm certainly not the only one who wondered—before the emergence of California Audio Labs—who would be the first to build such a unit. The obvious candidates were Audio Research or Conrad-Johnson. But those companies apparently read the audio tea-leaves and, perhaps perceiving the early high-end hostility toward the new format, apparently decided to bide their time. (With regards to tube players, they're still biding it, though C-J has had a prototype player up and running for some time.)

Cary Christie: from Infinity to Artison

Interviews

Thomas J. Norton | Jul 16, 2015 | First Published: Jan 01, 1995 | 1 comments

When Cary Christie, Arnie Nudell, and John Ulrick founded Infinity Systems more than 25 years ago, high-end audio as we know it today didn't exist. Hi-fi was audio, though the reverse wasn't necessarily true.

Through the growth years, Infinity became a major force in the High End. Cary Christie is the only one of the original players still associated with Infinity in 1995, now part of Harman International. His relationship, however, is now as an independent designer and consultant with Christie Designs, Inc. (footnote 1). I corralled him by phone on a clear fall day in Santa Fe, and a snowy one at his home near Lake Tahoe, Nevada. I asked him how Infinity had started.

Classé Sigma 2200i integrated amplifier

Integrated Amp Reviews

Thomas J. Norton | Apr 06, 2017 | 9 comments

The last few years have seen a flood of new integrated amplifiers in an audiophile market traditionally wedded to separate preamps and power amps. That might reflect the fact that integrated amps make a lot of sense, and not only because they usually cost less than equivalent separates. The latter gained a foothold in audio's Paleolithic era, when tubes were the only game in town. Tubes generate lots of heat—an enemy of electronics—and separating the preamp stages from the output devices kept this under control. Yes, there were integrated amplifiers back then, but they were generally of very low power—25Wpc was once considered monumental.

Counterpoint Natural Progression NPS-400 power amplifier

Solid State Power Amp Reviews

Thomas J. Norton | Feb 11, 2021 | First Published: Mar 01, 1995 | 1 comments

Amplifier designers have frequently looked for ways to marry the advantages of tubes to those of solid-state devices. Hybrid designs of various stripes have appeared over the years, most of them using tube input stages with transistor output stages, eliminating the major weaknesses of tube amplifiers: eg, they run hot, are unreliable in that tubes have a finite life, are more expensive than a similarly powerful solid-state design, and have power-hungry output tubes and output transformers.

Dahlquist DQ-12 loudspeaker

Floor Loudspeaker Reviews

Robert Harley, Thomas J. Norton | Jul 15, 2016 | First Published: Apr 01, 1990 | 0 comments

The DQ-12 is the latest loudspeaker from Dahlquist employing their "Phased Array" technology, first used in 1973. The company was formed that year by Jon Dahlquist and Saul Marantz to produce the DQ-10, a loudspeaker that enjoyed a long and successful life. When I sold hi-fi in a retail store in the late 1970s—we stocked Dahlquist speakers—the DQ-10 was among the more prominent audiophile speakers, prized for its imaging abilities.

In 1976, Carl Marchisotto joined the company, designing support products for the DQ-10 including a subwoofer, variable low-pass filter, and a passive crossover. Jon Dahlquist is no longer actively involved with the company; Carl has now assumed the engineering responsibilities at Dahlquist and is the designer of the latest group of Phased Array loudspeakers (footnote 1). This new line, introduced at the Winter 1990 CES in Las Vegas, encompasses three models: the $850/pair DQ-8, the DQ-12 reviewed here, and the $2000/pair flagship, the DQ-20i.

DTS & Data Compression

Reference

Thomas J. Norton | Mar 25, 1995 | 0 comments

In the October 1994 Stereophile (Vol.17 No.10, p.39), I discussed my experiences with the DTS audio data-reduction code/decode switch box, which, briefly, is a two-channel box that makes use of the algorithm DTS has proposed for their version of discrete multichannel sound for laserdiscs.

Elac Adante AF-61 loudspeaker

Floor Loudspeaker Reviews

Thomas J. Norton | Nov 27, 2018 | 37 comments

German manufacturer Elac had a significant North American presence in the 1960s and '70s, primarily with its Miracord automatic turntables. While it eventually disappeared from the US market, Elac never ceased to be a player in Europe, where it eventually shifted its primary focus from turntables to loudspeakers.

When Elac decided to reenter the US market a few years ago, its success was hardly assured. Faced with hundreds of brand names and thousands of models fighting for attention, it hired veteran speaker guru Andrew Jones to improve the odds. In his previous work, first for KEF and then for TAD and Pioneer, Jones had built a solid reputation on designing well-received, cost-no-object speakers as well as high-value budget designs.

Elite DV-05 DVD player (SGHT Review)

Features

Thomas J. Norton | Sep 26, 1999 | 0 comments

When we reviewed Pioneer's flagship Elite DV-09 DVD player in our September 1998 issue, it blew us away so much that it garnered an Editors' Choice award (see the February 1999 issue) as the best DVD player we had reviewed up to that time. This opinion has not changed in the intervening months, but at $2000, the DV-09 is more than many home-theater fans can afford (or justify) for a DVD player. The Elite DV-05, introduced earlier this year, provides many of the features and most of performance capabilities of the DV-09 at a more affordable price.

Elite DV-09 DVD player (SGHT Review)

Features

Thomas J. Norton | Aug 29, 1999 | 0 comments

The new DV-09 is Pioneer's first DVD player in its Elite line. More than simply an upscale version of a standard Pioneer DVD player, the DV-09 was built from the ground up to be a flagship product. It's also the first DVD player I've seen to have been certified under THX's DVD-player certification program (see sidebar, "THX DVD Players").

Emotiva Audio Airmotiv T2 loudspeaker

Budget Component Reviews Floor Loudspeaker Reviews

Thomas J. Norton | Apr 23, 2019 | 13 comments

Visit any consumer audio show these days and you'll see rooms full of systems costing from six to seven figures. Manufacturers like to put their best foot forward, and demoing systems with loudspeakers designed to sell for $50,000/pair and up (often up) seems an obvious way to go.

It's also common for an audio company to launch its flagship models first, and only later release more affordable products, for a wider range of buyers. The hope is that the promotional shine of the dream products will be reflected onto the budget models.

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