JA on Loudspeaker Measurements

JA on Loudspeaker Measurements

Author's Note: Although I started accompanying Stereophile's loudspeaker reviews with measurements soon after I joined the magazine in 1986, it wasn't until 1989, when we acquired an Audio Precision System One electronics analyzer and the then-new MLSSA speaker measurement system from DRA Labs, that I developed the standardized data presentation that is still featured in our reviews more than three decades later. In this article from October 1991, I summarize the results from the first two years of using MLSSA to test 69 loudspeakers.—John Atkinson

Vienna Acoustics Beethoven Baby Grand Reference Speaker, Aesthetix Mimas Integrated Amplifier, Chord Qutest DAC, VPI Super Prime Scout Turntable and Voyager Phono Preamplifier

Vienna Acoustics Beethoven Baby Grand Reference Speaker, Aesthetix Mimas Integrated Amplifier, Chord Qutest DAC, VPI Super Prime Scout Turntable and Voyager Phono Preamplifier

The two A La Carte Productions rooms at the Florida Audio Expo both featured speakers from Austria's Vienna Acoustics, including the North American debut of the Beethoven Baby Grand Reference ($9498/pair). Said to have been three years in the making, the new model is the younger sibling to the larger and aptly named Beethoven Concert Grand Reference tower; the two models share similar drivers and technologies.

Gryphon Ethos CD Player/DAC at New York City's Sound By Singer

Gryphon Ethos CD Player/DAC at New York City's Sound By Singer

On Thursday, February 13 from 5 to 9pm, Manhattan retailer Sound By Singer will present a musical evening centered around the Gryphon Audio Designs Ethos CD player/DAC. Alongside host Andrew Singer, Philip O'Hanlon of On A Higher Note—Gryphon's North American distributor—will demonstrate the Ethos with hand-curated selections . . .

Volti Audio Special Edition Rival Loudspeaker, BorderPatrol P20 EXD Power Amplifier and DAC SE-i, Innuos Zenith Music Server and Phoenix USB Reclocker, Triode Wire Labs Cables

Volti Audio Special Edition Rival Loudspeaker, BorderPatrol P20 EXD Power Amplifier and DAC SE-i, Innuos Zenith Music Server and Phoenix USB Reclocker, Triode Wire Labs Cables

In celebration of their first 10 years in business, Volti Audio unveiled a newly redesigned version of their Rival SE (Special Edition) speaker ($19,900/pair), seen here in an eye-catchingly exotic bubinga wood veneer (a rosewood option is also available). Although its side-curved form appears quite substantial, the horn-loaded hybrid floorstander can be sonically suitable for larger or smaller spaces. With its horn drivers and a sensitivity spec of 100dB, the Rival SE also makes for an easy to load-perfect for the 300B-powered BorderPatrol P20 EXD amplifier. The three-way Volti also features matching external crossovers that are user-adjustable, and Triode Wire Labs internal wiring.

Fyne Audio F702 Speakers, Pass Labs INT-60 Integrated Amplifier and XP-17 Phono Stage, Aurender W20SE Music Server, Aqua LaScala MkII DAC, VPI HW-40 40th Anniversary Turntable

Fyne Audio F702 Speakers, Pass Labs INT-60 Integrated Amplifier and XP-17 Phono Stage, Aurender W20SE Music Server, Aqua LaScala MkII DAC, VPI HW-40 40th Anniversary Turntable

Suncoast Audio presented Fyne Audio F702 speakers ($8995/pair) in their US debut. Handmade in Scotland, the two-and-a-half-way floorstander features a concentric point-source tweeter/midrange array with a titanium center that seemed almost hornlike in its appearance and delivery.

Stenheim Alumine 3 Loudspeakers; VAC Master Line Stage and Signature 200iQ Stereo Amplifier; Acoustic Signature XX Turntable, TA-2000 Tonearm, and TANGO Reference Phonostage; Dynavector XX2 MC Phono Cartridge; Critical Mass Systems Sotto Voce Rack; Cablin

Stenheim Alumine 3 Loudspeakers; VAC Master Line Stage and Signature 200iQ Stereo Amplifier; Acoustic Signature XX Turntable, TA-2000 Tonearm, and TANGO Reference Phonostage; Dynavector XX2 MC Phono Cartridge; Critical Mass Systems Sotto Voce Rack; Cablin

When I heard the Stenheim Alumine 3 at AXPONA last year, I frankly wasn't impressed. The tweeter seemed a little hot, the character a little buzzy. I learned just this morning that Jean-Pascal Panchard, Stenheim's CEO and designer, wasn't happy with them, either. He didn't think they were ready, but they had committed to presenting them at AXPONA, so he kept his commitment. They only produced three pair in that configuration. After that show, changes were made.

Kiso Acoustics HB-N1 Speaker, Metronome DSS Streamer and Le DAC, Thales Slim II Turntable, Karan Acoustics KAL MK3 Preamplifier, KAS 400 Stereo Amplifier, and PH1 Phonostage, EMT STX 5/10 Step-Up Transformer

Kiso Acoustics HB-N1 Speaker, Metronome DSS Streamer and Le DAC, Thales Slim II Turntable, Karan Acoustics KAL MK3 Preamplifier, KAS 400 Stereo Amplifier, and PH1 Phonostage, EMT STX 5/10 Step-Up Transformer

Wynn Audio of Toronto presented a lovely demo with a couple of new products: the Swiss-made EMT STX 5/10 step-up transformer ($9280), which employs a toroidal transformer with pure silver wiring to provide output options for 14dB or 20dB of gain with a lower noise floor for higher resolution, and the Métronome DSS Streamer (DSS stands for Digital Sharing Streamer), which was released in January but seen for the first time here in the U.S.
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