Loudspeaker manufacturer GoldenEar Technology was founded in 2010 by a team led by Sandy Gross, who over the decades was responsible for a succession of affordable high-performance loudspeakers from Polk and Definitive Technology (footnote 1). Gross continued that tradition with GoldenEar: Even the company's flagship, the Triton Reference, which I favorably reviewed in January 2018, was priced a couple of dollars short of $8500/pair. (GoldenEar was acquired by The Quest Group, the parent company of cable company AudioQuest, in January 2020; Gross continued with the brand as president emeritus.)
Mother, mother
There's too many of you crying
Brother, brother, brother
There's far too many of you dying
I watched the TV with horror. George Floyd, an African-American man in Minneapolis, Minnesota, was being killed in front of the camera. I retreated to the listening room. In what couldn't have been a coincidence, the Roon app's "Discover" function had recommended I play What's Going On, Marvin Gaye's groundbreaking album, released in 1971 by Motown subsidiary Tamla.
Hi-fi system resolution has long been the cause of heated arguments. But when it comes to converting digital data to an analog signal, there can be no argument. Data go in at one end of a DAC and an analog signal comes out of the other end, with a noise floor directly rated to the combination of the converter's digital and analog resolution. Ever since I started measuring digital products for Stereophile, I have been expressing a D/A processor's effective resolution in terms of the equivalent number of bits.
Canadian audio manufacturer Classé Audio was founded in 1980 by engineer Dave Reich and entrepreneur/audiophile Mike Viglas. The name "Classé" was a pun on the fact that Reich was a firm believer in an amplifier's output stage operating in class-A, where the output devices never turn off (see sidebar). Though the brand was established with the 25Wpc DR-2, the first review of a Classé amplifier to appear in Stereophile, by Larry Greenhill, was of the later DR-3, in December 1985. No fewer than 22 reviews of Classé products are available in our free online archive.
Designing Audio Power Amplifiers, Second Edition, by Bob Cordell, Routledge/Focal Press, 2019. 776pp. $160.00, hard cover; $97.95, paperback.
I first met Bob Cordell at clinics he gave at the last audio show Stereophile organized, Home Entertainment 2007, in Manhattan. At those clinics, Bob shared his views on why amplifier measurements are not always good at predicting differences in sound quality. So when I was scheduled to host a seminar"Amplifiers: Do Measurements Matter?"at this year's now-canceled AXPONA, Cordell was on the short list of designers I felt would offer valuable insight.
Soon after I took over preparing Stereophile's biannual Recommended Components listing from the magazine's founder, J. Gordon Holt, in 1986, I ran into a problem. With so many products listed, the magazine was running out of the necessary pages to include them all. To solve this problem, I looked at how long a typical product remained on the market before being updated or replaced. The answer was 34 years. I therefore implemented a policy that unless one of the magazine's editors or reviewers had continued experience with a product, it would be dropped from Recommended Components after three years.
At the end of April, Adrian Low, the proprietor of Toronto retailer Audio Excellence, asked if he could interview me. "I've been interviewing audio luminaries for some time," Adrian wrote, "partly because I am so interested in how they started, their experiences, and also to share these with fellow audio enthusiasts."
We connected with Skype and, in the two videos embedded below, Adrian and I, along with Jan and Vilip from Audio Excellence, talk about many things connected with my 52 years as an audiophile, my 43 years in audio magazine publishing, and my 33 years at the editorial helm of Stereophile.
In his review of the three-way, active Dutch & Dutch 8c loudspeaker in the August 2019 issue of Stereophile, Kalman Rubinson concluded that "The D&D 8c demonstrates that active, DSP-empowered speakers are the future." I was equally impressed by the 8c's measured performancea superbly flat on-axis response and an unmatched control of dispersion over the entire audiobandand asked to borrow a pair so I could experience the speakers in my own listening room.
The priciest loudspeaker ever to have taken up residence in my listening room was the Akira from German company Tidal Audio (footnote 1), which I reviewed in the November 2018 issue of Stereophile. Designed by Tidal founder and CEO Jörn Janczak, the Akiras cost $215,000/pair! "The sheer resolution of the Akiras continued to astonish me throughout my auditioning," I wrote in my review, concluding that "The Akiras are the best-looking, best-built, best-sounding speakers I have had in my listening roomas they should be at the price."
The idea of using digital signal processing (DSP) to convert digital audio data sampled at 44.1kHz or 48kHz to a higher sample rate is not new. I first heard the beneficial effects of upsampling at Stereophile's 1998 hi-fi show in Los Angeles, where a pro-audio dCS 972 digital-to-digital processor was being used to convert 16-bit/44.1kHz CD data to a 24/192 datastream.