John Atkinson

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John Atkinson | Dec 07, 2016 | First Published: Dec 01, 1989 | 2 comments

The English loudspeaker manufacturer Rogers [no connection with the contemporary US company Rogers High Fidelity] has had an illustrious history since being founded in 1947 by veteran designer Jim Rogers. Absorbed by the Swisstone company in 1976, it has since gone from strength to strength, the main creative work now being done by the respected English engineer Richard Ross. Noteworthy for keeping the miniature BBC LS3/5a design in continuous production for nearly 15 years, Rogers also makes a range of polypropylene-cone woofers and midrange units which are used in other models in its range.

Rogers Studio 3 loudspeaker

Stand Loudspeaker Reviews Budget Component Reviews

John Atkinson | Jul 09, 2006 | First Published: Dec 09, 1993 | 0 comments

Back in the early 1970s, the BBC needed a physically unobtrusive, nearfield monitor loudspeaker for use in outside-broadcast trucks. Accordingly, they instructed their design department, which at that time featured such luminaries as Dudley Harwood (the "father" of the polypropylene cone, who went on to found Harbeth) and the late Spencer Hughes (the "father" of the Bextrene cone, who went on to found Spendor), to produce such a model. Thus, not only was what was then probably the finest collection of British speaker-design talent involved in its development, there were no commercial constraints placed on the design. The only limitations were intended to be those arising from the necessarily small enclosure and the absence of the need for a wide dynamic range under close monitoring conditions.

Roksan Attessa streaming integrated amplifier

Integrated Amp Reviews

John Atkinson | Nov 25, 2022 | 10 comments

When I put together my first hi-fi system in the late 1960s, the amplifier was a Kenwood integrated. Soon I replaced the Kenwood with a Sony integrated, and then, a few years later, I bought a Lecson preamplifier and power amplifier pairing. It's been separates for me ever since.

Room Tuning Techniques

T.H.E. Show Newport 2013

John Atkinson | Jun 07, 2013 | 14 comments

Your room is the most important part of your overall sound quality,” said Anthony Grimani of MSR Acoustics, who gave two well-attended lectures at T.H.E.Show showing how room acoustics problems can be tamed. “Come learn how to use absorption, diffusion, bass filters and traps to enhance your room’s acoustics and get the best from your system.”

Roon Labs Nucleus+ music server

Media Server Reviews

John Atkinson | Jul 17, 2018 | 22 comments

Sssssshhhhhh—I forget what music was playing, but as the sound faded away, I could hear a loud hissing coming from the 2011 i7 Mac mini I was operating headless with Roon 1.3 to play files over my network. Checking the mini's shared screen on my MacBook Pro revealed that it was completely unresponsive, so I yanked its AC cord, after which it wouldn't boot up.

This was the second time the Mac mini had died. The first time, in 2015, the local Apple Genius Bar had repaired it. This time, the hipster at the Genius Bar turned me away: "We don't offer repair work on vintage computers."

Rosso Fiorentino Siena

CES 2011

John Atkinson | Jan 14, 2011 | 1 comments

Pride of place in the Avatar Acoustics room at the Venetian went to the four-way Siena speakers ($24,995/pair) from Italian manufacturer Rosso Fiorentino. The designer teaches electroacoustics in Florence, but is a graduate from the University of Salford in the UK. A pair of aluminum-cone 8" woofers in a separate sealed enclosure are combined with a 6.5" paper-cone midrange unit (a ScanSpeak Revelator), a 1" silk-dome tweeter, and what appeared to be a Murata "ultrasonic generator," to give a specified response of 35Hz–100kHz, –3dB.

The Siennas were demmed in a system comprising Dr. Feikert turntable and tonearm, Abbingdon Music Research CD player, phono preamp, and integrated amplifier, with Acoustic System racks and cables, but I will hand over to Jason Serinus for some additional thoughts:

Rosso Fiorentino, Graaf, and More

CES 2014

John Atkinson | Jan 16, 2014 | 0 comments

Jason Serinus mentioned the Rosso Fiorentino Florentia loudspeakers ($99,995/pair) in his report on the Graaf amplifier in the Avatar Acoustics room below. This four-way speaker enclosure features aluminum front panels and glass side panels and weighs 361.5 lbs. The midrange and treble units are mounted in an open baffle, while the top-mounted woofer and the twin 12" subs are mounted in sealed enclosure. The subs are driven by a 1500W amplifier and the sensitivity is claimed to be 89dB.

Rotel RC-850 preamplifier

Budget Component Reviews Solid State Preamp Reviews

John Atkinson | Nov 15, 2018 | First Published: Dec 01, 1988 | 0 comments

A few issues back, in my review of the Mark Levinson No.26 and No.20 (May 1988, Vol.11 No.5), I mused on the fact that the preamplifier, being the heart of a system, had a more significant effect on sound quality in the long term than, say, the loudspeakers. It was worth spending more on a preamplifier, therefore, than on loudspeakers. Needless to say, this viewpoint was regarded by many readers as dangerously heretical. I decided, therefore, to investigate the sonic possibilities of budget-priced preamps in this issue, even the most expensive being less than one-tenth the price of the Mark Levinson.

Rounding Up the Usual Suspects

As We See It

John Atkinson | Feb 29, 1996 | 0 comments

When J. Gordon Holt founded Stereophile in 1962, it was very much the outsider. Compared with the mass-market magazine of which he had been Technical Editor, High Fidelity, Gordon's Stereophile was the very model of an "underground" publication, with a publication schedule as irregular as its production values were inconsistent. Its writing was from the heart, however.

RSL Speedscreen II loudspeaker

Floor Loudspeaker Reviews

John Atkinson | Mar 09, 2017 | First Published: Feb 01, 1990 | 0 comments

RSL is the house brand of a California chain of retail stores, Rogersound Labs, that is part-owned by the leader of the RSL loudspeaker-design team, one Howard Rodgers. (Rogersound Labs also owns the Upscale Audio high-end store in north Los Angeles.) The range offered by RSL is unbelievably wide, with models addressing just about every market niche and price category. The Speedscreen II, however, is Howard's attempt to produce a true high-end loudspeaker at an affordable price. To the casual observer, the Speedscreen ($898/pair) appears to be a planar design; however, its shallow, braced enclosure houses moving-coil drive-units, and is a result of Howard's attempts to minimize the effect of cabinet resonances. "I always thought deep, narrow enclosures sound 'boxy'," said Howard when he visited Santa Fe last September, "and the wide but shallow cabinet seemed to be the best way to get a large internal volume without 'boxiness'."

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