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Live Streaming in the Time of Covid-19 with AudioQuest DragonFly USB DAC


We are now four months into New York State's pandemic lock-down. The days pass, every one feels like a Saturday. There's nothing on my calendar except a couple of repeating Zoom sessions—all our entertainments have been zapped. (I know: if that's the worst of it, I shouldn't complain.) The free time hangs heavy; you adjust... Read More »


Don't Pass, Go! The Pass Labs XA30.8 Amplifier


During the initial days of my shelter in place, I stepped outside for a walk, only to find a short monolith in the middle of my driveway. It was a hulking, brown box, and obviously delivered by truck. No knock on the door, no ring of the bell... just something I discovered in my driveway—not... Read More »


David Elias - The Art of Listening


Bach vs Beck…is it all just Nature's Noise? I am listening to both Bach then Beck on Spotify and noticed they had a similar 5 million listening audience for the month. What else do these guys have in common? To start they both wrote music for infinite audiences. This is something Beck no doubt always... Read More »


Goldmund Mimesis 37S NextGen Analog Preamplifier and Telos 280 Stereo Analog Power Amplifier: Never Say Never


I was once upon a time in a galaxy far, far way, an unabashed, dyed-in-the-wool tube lover. The mere mention of solid-state electronics sent my upper lip into involuntary quivering. Still, it was important to separate my job as an audio reviewer from my personal preferences. Over the years, products from Levinson, Rowland, Cello, PASS,... Read More »


LTA MZ3 Preamplifier


For those who have read my other reviews on Positive Feedback, one thing that is probably apparent, is my love of tubes. I find that tubes bring a sense of space and realism that is rare in solid state amplifiers. Now tubes are not perfect, they have their drawbacks. For example, if you are using... Read More »


Sexy Blue Tubes, Part 2, The Sophia Electric EL34-ST and KT88-ST Vacuum Tubes!


It has been quite some time since my last article for Positive Feedback about the Sophia Electric vacuum tubes developed and offered by Sue and Richard in McLean, Virginia. It was all the way back in August of 2017 that I wrote about the Sophia Electric EL34-ST (photo below) and Aqua 274B vacuum tubes (HERE),... Read More »


Cheers to Lutz: Sparkos Labs Aries Headphone Amplifier


Background In this time of Covid 19 it was apt that I was given the opportunity to review a product from a small company headed by a dog named Lutz. Cottage industry is the name of the game, and Sparkos Labs is an outfit out of Westminster Colorado, United States that was born from a... Read More »


KEF R5 Loudspeaker and KF92 Subwoofer


A system with wonderful synergy. Review By Frank Garofalo With this article, Positive Feedback continues its content-sharing relationship with Enjoy the Music. Frank Garofalo shares his thoughts on the KEF R5 Loudspeaker and KF92 Subwoofer. Dr. David W. Robinson, Editor-in-Chief   KEF is a company cherished in the audiophile world for bringing great sound to many around the... Read More »


The Clarus Duet - A Journey Though High-Current Line Conditioning


"If the power supply of an amplifier is designed correctly, there is no need for a power conditioner." The quote above is a paraphrase, of a paraphrase, of something that has been said since the first power conditioning devices for audio equipment crawled out of the ocean and began to breathe air. While the quote... Read More »


Notes of an Amateur: Bach Cello Suites by Weilerstein; Haydn by the Chiaroscuro Quartet;  New England Piano Trios. Telemann’s Solo Violin Suites by Hadlich, Shostakovich’s Violin Concerto by Ibragimova


…all descriptions of music are quite worthless & rather unpleasant; they are apt to be hysterical & to say things the people will be ashamed of having said afterwards. V. Woolf, Diary.   Bach Cello Suites, Alisa Weilerstein, Pentatone PTC 5186 751. I am a big first impression guy. I never leave it at that,... Read More »


RADIO FREE CHIP: The Sounds of Silence


Do You Believe In Ghosts? A boy hears a sound. He hears sound before he has a name. He hears gurgling, pounding underwater. He hears an ocean of blood swimming around him. Through his veins. Through his mother. He breaks into the light of day. He's shocked that he has a voice. He finds his... Read More »


Ekaterina Siurina: French and Italian Arias


Amour Éternel,  Ekaterina Siurina, soprano; Kaunas City Symphony Orchestra/ Constantine Orbelian. Delos DE 3583.  TT: 76.11 CARPENTIER: Louise: Depuis le jour. GOUNOD: Roméo et Juliette: Je veux vivre; Va! Je t'ai pardonné...Roméo! Qu'as-tu donc? (with Charles Castronovo, tenor); Faust: O Dieu! que de bijoux...Ah! je ris (Jewel Song). BIZET: Les pêcheurs de perles: Me voilà seule... Read More »


Monarchy Audio SM-70 Pro Amplifiers


This article, as reviewed by Francisco Duran, Victor Chavira, Carol Clark, and Dave Clark originally ran in Issue 2, August/September 2002, 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. Back in Issue... Read More »


Technology - AAD, ADD, DDD: the SPARS Code in the 21st century


"The SPARS code is a three-position alphabetic classification system developed in the early 1980s by the Society of Professional Audio Recording Services (SPARS) for commercial compact disc releases to denote aspects of the sound recording and reproduction process, distinguishing between the use of analog equipment and digital equipment." Wikipedia, USA Richard James Burgess, the Marketing, Sales and Licensing Director at Smithsonian Folkways Recording, i.e. the non-profit... Read More »


Afro Cuban Quarantine


One of the few benefits of quarantine has been an abundance of time for listening to music. As resident Latin music specialist, I offer the following recommendations for your enjoyment. Buenos Hermanos was Ibrahim Ferrer's 2003 follow up to Buena Vista Social Club Presents Ibrahim Ferrer released in 1999. Both recordings are from World Circuit.... Read More »


Above and Beyond - The Synergistic Research PowerCell SX Power Conditioner


As we who love music continue to respect and cherish tradition when it comes to things like tubes and vinyl LPs, I think that it is also import for us to embrace those who challenge the audiophile norm, and are true innovators in the industry. We need a balance of both to move forward and... Read More »


Audio Show Flashback: CES 2010


Because the Coronavirus has halted audio shows for the foreseeable future, we thought it might be fun to go back and revisit some shows from days gone by. I believe this is the last CES that Dave and I attended. Carol and Mark O'Brien of Rogue Audio. We can all agree that 2009 was a... Read More »


DS Audio Vinyl Ionizer ION-001


Static electricity, the dreaded bane of vinyl lovers the world over. It doesn't matter were you live or what climate you find yourself in, static electricity is an issue for anyone spinning records. There are essentially three culprits contributing to the progressive build up of static during vinyl playback: the first is the simple act... Read More »


Top 500 SuperSonic List - Part 21


This is an ongoing project by Claude Lemaire of Soundevaluations "I can't breathe" Eric Garner, George Floyd "We can't breathe" People all over the World "What's Going On" Marvin Gaye "Why Can't We Live Together" Timmy Thomas "Love Is the Message" MFSB (Gamble & Huff) "RESPECT" Otis Redding, Aretha Franklin "Get up, stand up, stand up for... Read More »


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