Robert Deutsch

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Robert Deutsch  |  Jan 23, 2018  |  28 comments
Although PS Audio's Stellar M700 monoblock power amplifier ($2998/pair) is a brand-new design from a team led by engineer Darren Myers, it draws on the company's extensive experience with class-D amplification. Sam Tellig and Kalman Rubinson reviewed PSA's HCA-2 power amp in, respectively, the October and December 2002 issues, and I reviewed their GCC-100 integrated amp in January 2006. The Stellar M700's input stage is the latest version of PS Audio's Gain Cell, which they describe as a "proprietary, fully differential, zero feedback, discrete, class-A MOSFET circuit.
Robert Deutsch  |  Oct 23, 2017  |  6 comments
Having heard some impressive, cost-no-object audiophile systems at TAVES, I returned to the Totem room to listen to the Tribe Tower, and continued to marvel at the power and sheer musicality of this system…
Robert Deutsch  |  Oct 21, 2017  |  4 comments
If you do a Google search for "loudspeaker" combined with "full-range," "line source," "one-way," and "modular," you'll get results that match some, but not all, of the characteristics of the Ruel Audio R7. The Audience ClearAudient 16+16 comes the closest, with 16 drivers firing forward and 16 to the back, but its small full-range drivers are supplemented with eight 6x9" passive radiators, and it does not have modular construction. Plus, it appears not to be in production. For that matter, Google misses Ruel, but it has been granted a provisional patent.
Robert Deutsch  |  Oct 18, 2017  |  7 comments
The Toronto Audio Video Entertainment Show (TAVES) has changed its venue. The show that now bills itself "North America's ULTIMATE Technology & Hi-Fi Show" has moved from the suburban Sheraton/Best Western location of the past two years to the Toronto Congress Centre, near the airport.

Why the move? Suave Kajko, President of TAVES, cites several reasons: the venue wanted to literally double the price for the large rooms; the Best Western hotel was the source of many complaints from exhibitors, and, in any case, is scheduled for demolition, and the show was bursting at the seams in terms of space (they didn't have enough space for booth exhibitors).

Robert Deutsch  |  Sep 26, 2017  |  7 comments
The first time I heard a CD player in my own system was in 1983, the first year of the format's introduction in the West. CD players were generally hard to come by, but I had a friend who worked for Sony, and he came over with his new toy: Sony's next-to-top-of-the-line CD player. (I think it was a CDP-501.) We connected it to my system—at the time, Quad ESLs driven by a Luxman tube amplifier, with a Linn turntable—and listened to some Sony demo CDs.
Robert Deutsch  |  Sep 14, 2017  |  20 comments
IsoAcoustics Inc. has its head office in Ontario and its manufacturing facilities in China, and is headed by Dave Morrison, who for 20 years has been involved in designing radio and television studios for the Canadian Broadcasting Corporation. The IsoAcoustics products are the result of this experience. Although relatively new on the consumer-audio market, IsoAcoustics' speaker-isolation products have gained wide acceptance in pro audio; their client list of recording and mastering studios includes Blackbird (Nashville), Mastering Palace (NYC), Flux (NYC), United Recording (LA), the Boston Symphony Orchestra, Skywalker Ranch, and Abbey Road.
Robert Deutsch  |  Jul 11, 2017  |  15 comments
If Stereophile gave an award for Loudspeaker We've Most Frequently Reviewed, the hands-down winner would have to be the Quad ESL. The list of past and present Stereophile contributors who've written about the ESL's various incarnations includes John Atkinson, Martin Colloms, Anthony H. Cordesman, Art Dudley, Larry Greenhill, J. Gordon Holt, Ken Kessler, Dick Olsher, Herb Reichert, William Sommerwerck, Steven Stone, and Sam Tellig. The ESL-63 was John Atkinson's personal "Editor's Choice" in 1992, and the ESL-989, a successor to the ESL-63, was Stereophile's 2003 Loudspeaker of the Year and Product of the Year.
Robert Deutsch  |  Feb 27, 2017  |  0 comments
Imagine that you own an audio store, and business is good. Sales are up, and you'd like to take on additional lines. It's a good position to be in, but it has its challenges. You need more space, for sure. But what if the only suitable space that's available is some distance from the original store. Will customers follow you to the new location? Adrian Low, owner of Audio Excellence, has had to face this challenge three times.
Robert Deutsch  |  Jan 09, 2017  |  0 comments
The CES 2017 demo of the TAD Micro Evolution One ($12,495/pair)—shown here with Jonathan Derda of MoFi Distribution, the importer—provided convincing proof of the engineering skill of TAD's current Japanese designers. The sound (with all TAD electronics) was simply superb…
Robert Deutsch  |  Jan 09, 2017  |  3 comments
Based in the Czech Republic, Acoustique Quality is a highly sophisticated loudspeaker design and manufacturing facility that uses the latest technologies, including 3D modeling, five-axis machining, high-precision cutter saws, etc.

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