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Stein Music Bobby S Ultimate Loudspeaker


The Bobby S Ultimate Loudspeaker from Stein Music of Germany is a robust stand-mounted two-way monitor that is unusual in several ways. It has a unique horn tweeter/midrange on top of a moderately large, for a monitor style speaker, dynamic woofer. The cabinet is finished in 100% knife-veneered birch and this model is the top of... Read More »


Rock and Roll All Night… I Just Might! - Wharfedale Diamond 12.3 Loudspeakers


A common topic among audiophiles or collectors of HiFi gear is the piece of gear you regret selling the most. Often, this results in a list of equipment we lament relinquishing to the wild. You have yours and I have mine. What's my regret? A gorgeous set of Wharfedale Pacific Evo tower speakers that I... Read More »


Impressions: Vivid Audio at GTT Audio, a Photo-Essay…and Another Mountaintop Experience


Robinson in Jerusalem, 2022, contemplating on the Via Dolorosa. (Photograph and image processing by John Robinson.) Every now and then I make a trip to visit my very good audiobud Bill Parish over in Long Valley, New Jersey. Bill owns GTT Audio and has an exceptional line of high-end audio brands, each of which sets... Read More »


Solen Monitor 9A:  A Standout Bargain Among Professional Monitors


Every now and then—but really, not all that frequently—a product appears that really "shakes the chessboard" in terms of performance, value for money, or both. The Monitor 9 from Solen Electronique is one such product. Solen is a Montreal-based Canadian company with manufacturing facilities in Canada and France. Its overall performance is top-tier, and its... Read More »


Sonus faber Sonetto III Loudspeakers


It has been a little over one year since the write-up about the Sonus faber Lumina V (HERE). A keen-eared reader made a comment regarding the Lumina V: "It was amazing how little the Lumina V gave up to the Sonetto VIII." The Sonetto VIII is the big brother of the Sonetto III which will... Read More »


Musician Audio Knight 1 Loudspeakers


An electric bass sets the rhythm and is instantly recognizable as the snap of a snare drum and the splash of a single cymbal resonates in the background. The lights are turned down in my listening room and Stevie Nicks voice is dark, haunting, and otherworldly. Though this is a classic song, the lyrics remain... Read More »


Wolf von Langa WVL 12639 SON Loudspeaker System


The SON also Rises The name Wolf von Langa (WVL) is known in Germany as a manufacturer of high-end audio speakers. Unless you are up on the European speaker scene, the brand may be new to you. Here's a little background about Herr von Langa, the man: After making his very first speaker at age... Read More »


Vermouth Audio Studio Monitor Loudspeakers


With this article, Positive Feedback continues its content-sharing relationship with Enjoy the Music where Tom Lyle shares his thoughts on the Vermouth Audio Studio Monitor Loudspeakers. Dr. David W. Robinson, Editor-in-Chief A good-looking and great-sounding loudspeaker. Review By Tom Lyle Vermouth Audio is located in the Indonesian province of Bali, which is located east of Java. Most know... Read More »


JansZen Valentina A8-SE Loudspeakers [Updated 12-10-2022]


The JansZen A8-SE Loudspeaker JansZen Laboratory was founded in the 1950s when Arthur Janszen developed the first practical electrostatic loudspeaker. The company, currently called JansZen Audio, is run by his son David, who has continued the research and development culminating in the Valentina A8. The Valentina A8 is a complete audio system containing DAC, ADC,... Read More »


The Great Painters - MayFly MF-201A Loudspeakers with MF-201A Stands


Most times, equipment reviews begin smoothly, and progress from there. Occasionally, though, they start with a bit of thud. In this case, my review of the MayFly 201A loudspeakers began with a disheartening rattle. The shipper had apparently not been kind in their transit of the four boxes. Upon connecting the speakers, it was readily... Read More »


The Audio Note (UK) AN-K/SPe Loudspeakers: The Life and Emotion of Music!


Greeting friends, I hope you are doing well, and Happy Holidays to you! Today's article is about the Audio Note (UK) AN-K/SPe compact high-performance stand-mounted loudspeakers ($5665 USD per pair HERE), along with their intended AN-K stands ($936 USD per pair HERE). The Audio Note (UK) AN-K/SPe Loudspeakers The Audio Note (UK) AN-K/SPe loudspeakers are... Read More »


Zu Union 6 Loudspeakers


Zu really impressed me this year. I have listened to their speakers in the past but, when I heard the Soul VI in my room I fell in love. So much so, that I bought them immediately after I completed my review. When I was working on that review, Phil, Zu's business advisor, told me... Read More »


Load Factor and Agility Factor: Proposed Additions to the Thiele-Small "Canon"


A special Positive Feedback guest editorial from John Marks, J.D. and James Tuomy, AES John Marks has been a longtime audio friend of mine, and a respected member of audiophile recording and loudspeaker design community. He recently approached me to publish a technical paper that he and James Tuomy had written regarding proposed modifications to the... Read More »


Von Schweikert VR-4JR MkII loudspeakers - A Speaker of Many Virtues


This article by John Zurek originally ran in Issue 31, May/June 2007, so while we call this section "New Old Stock - Articles from Our Days in Print" you are also going to see some articles from our early days of going online. It started out innocently enough. One of the spikes broke—my fault—on my... Read More »


The Sony LSPX-S3 Glass Surround Speaker: Modesty's Beguiling Musical Eros


Jim Merod: a self-portrait. Sony's LSPX-S3 glass sound speaker can be regarded as a leaner, no less enjoyable sonic anomaly which the paradigm-setting Harmon Kardon three-unit stereo playback device, a decade or so back, brought the convenience of music's joyful digital miniaturization. This inexpensive, highly-compatible audio triumph depends not so much on Bluetooth flexibility, but... Read More »


From an Editor's Notebook, Very Briefly: More on Gold Note…the XS-85 Reference Loudspeaker


Dr. David contemplating the mysteries of Life. Happy Valley, OR, 2018 (Photograph by John Robinson; image processing by Ye Olde Editor) Last month's reflection upon the good things happening at Gold Note in Italy concentrated on some of their key people, as profiled on their YouTube channel. It was good stuff, people being the most... Read More »


From the Copper Mine: A Loudspeaker Company Grows in Brooklyn - DeVore Fidelity


As a reminder to Positive Feedback readers, PF has some very fine content-sharing relationships with a handful of fine audiophile publications. Among this fraternity of online magazines is Copper Magazine, the journal of PS Audio, Paul McGowan's audiophile company. Frank Doris is the current Editor there, and is a good friend, respected due to his many years in... Read More »


The New Apartment Lounge: Von Schweikert Audio's Stealth-Bomber Endeavor Special Edition Loudspeaker


Up and Down the Loudspeaker Evolutionary Ladder From its inception nearly 40 years ago, Von Schweikert Audio has adhered fanatically to a unifying corpus of science-driven principles first championed by company founder and former chief engineer Albert Von Schweikert, sadly no longer with us. Albert's science-centered reimagining of modern loudspeaker design utilized applied psychoacoustic observations... Read More »


The Magnificent Magnesium Usher Audio ML-801 Loudspeakers


Staring out from the darkened hotel room, two sculpted, burly figures stand guarding the glistening golden and onyx tinted treasures between them. Suited in matching, high gloss Macassar Ebony with piano black faceplates angled back and studded with a tweeter and two drivers, at nearly four feet tall, they can swing and punch with the... Read More »


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