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Dialing in this DAC conjures an enchanted eye exam—however, instead of an optometrist switching lenses in a phoropter and asking, "Better or worse?", you swap 12AU7 tubes and focus on how they affect your music experience. As with eyeglasses, the optimal fit varies with each individual. It depends on a variety of factors—the room's acoustics,... Read More »

Over the past several years, increasing emphasis has been placed on products made in the U.S.A., and moreover, those hand-crafted by artisans. Entire fairs have sprung up showcasing wares by craftsman and more attention is being paid to the sources of materials of each product. Whether it is the farm-to-table movement, or your daily deliveries,... Read More »

Image courtesy of UIT Unique Innovation Technology Co. (UITaudio.com) is a California company under the guidance of Mitch Ko, an extremely talented electrical engineer and designer who has always been looking to improve and advance connectivity for high-end audio. When I met him for the first time at the LA Audio Show a few years... Read More »

If any audio product should be standard issue, the lowly record cleaner certainly qualifies for that status. If you play records, they need cleaning. If you buy new or used records, they need cleaning. Yes even new ones need a once over with a good old record cleaner. Of course I have talked to people... Read More »

Classy Operation A class-D amplifier, or switching amplifier, all too often mistakenly referred to as a "digital" amplifier, differs from the much more traditional and popular linear amplifier classes. In a switching amplifier, its transistors, usually MOSFETs (Metal–Oxide–Semiconductor Field-Effect Transistors), rather than directly providing gain to the sourced signal, operate as electronic switches. The audio... Read More »

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 »

The last of the Fono Acustica cables had been sent back about six months ago. Already, their sonic profile was receding. It's difficult to retrieve what you can barely describe in words because sounds are not stored in long-term memory. So it was amazing and a testimony how fast that profile resurrected when the newly... Read More »

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 »

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 »

The AT-ART20 lists for $2900 and resides as the second most expensive cartridge in the ART series cartridge line. The AT-ART20 is only topped by the $4999 AT-ART1000. The AT-ART20 magnetic circuit was based on the AT-ART9XI, but the AT-ART20 has a thicker front yoke, which improves the flux density and increases the output by... Read More »

Room correction is catching on in the two channel world. Some will read this first sentence and think that I have lost my mind, some will say "of course," and others will say "really, I had no idea." Room correction is easily one of the most debated topics by audiophiles, and ranks up there with... Read More »

A Breakthrough Amplifier Design A pair of the Zesto Audio Eros 500 Select Monoblock Amps (image courtesy of Zesto Audio) The more I immerse myself in this hobby since I retired from the entertainment industry in 2008, the more certain I have become that the amplifier is the most important and telling piece of equipment in... Read More »

It used to be that when traveling out of state, I would tell people I was from Chicago. But in reality, it couldn't be further from the truth. I live in a suburb more than an hour north of Chicago and largely avoid going into the city. Lately, I have begun to be more truthful,... Read More »

I'll share a snippet from an email exchange with Alan Kafton, proprietor of audiodharma, the company that makes the Cable Cooker. The subject is the long anticipated, but now available, Ground Breaker adaptor set for the conditioning of power cables. Good morning, Alan I just finished cooking a pair of power cords. One PC used... Read More »

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 »

The journey continues. In pursuit of the finest in high end audio integrated amplifiers, last month I auditioned the Aavik I-580 from the Audio Group Denmark. You can check out the review HERE. The I-580 certainly deserved its position as the flagship integrated in the Aavik lineup, but it has just recently been upstaged by... Read More »

In Stanley Kubrick's 2001: a Space Odyssey, awestruck australopithecines (prehistoric ape-like primates with human traits) encounter an alien, 11' x 5' x 1.25' black monolith standing in the rocks and crags of an African desert and, shortly thereafter, have an epiphany and create crude weapons. Fast forward 4000 years: clothed and scented homo sapiens gawk... Read More »

Guys who own digital master clocks are very serious about extracting the most from digital sources. If a stock power cord came with the clock, very likely it's still unwrapped in the box, because that would be self-defeating. Audiophiles shooting for the max are OK with substantial outlays for after-market power cords—they've heard the solid... Read More »

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 »