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Horch House Launches DSD Wafer Cards


One of the interesting exhibits at the recent High End Audio show in Munich earlier this year featured Horch House. For those of you who aren't familiar with the company, Horch House is the analog audio division of Lutz Precision, a worldwide leader in auto making equipment based in Austria. While it probably seems a... Read More »


In Search of a Perfect Song


This article was originally published in Issue 26 of Positive Feedback. I decided to republish it because I've gotten the bug to write another article with some more perfect songs. Back when I wrote this article it seemed like I was a topic for discussion on message boards. I was everyone's favorite target because I... Read More »


GTT’s Bill Parish & Audionet’s AMP 1 V2 Truthful, Happy Stereo Amp


The Always Unimaginable Future The First World War pre-dated the arrival of vivid sonic capture. It's not difficult to imagine that—despite the assassination of the Archduke Ferdinand in Sarajevo in 1914, which let loose animosities ready for release after Europe's and Asia's 1870 conflicts—almost anything might have helped stave off the disaster of that delusional... Read More »


My Dinner With Paul - or - Design and Direction: Getting Up, or Getting Down


On Friday, after T.H.E. Show in Newport Beach—actually in Irvine—California, I went to dinner with PS Audio's Paul McGowan and company: Arnie Nudell, Bill Leebens, Scott Schroeder and Paul's son, Scott. Ostensibly, I was there to talk about something Paul wants to do that will probably involve me. But the talk took an interesting direction.... Read More »


Cars and Watches and HiFi: Roger Skoff Writes About the Things We Buy


What kind of a watch does James Bond wear? That's easy; everybody knows that, at least as written by Ian Fleming, it's a Rolex Oyster Perpetual. Now, what kind of a car does he drive? Odds are that, whether in a book or a movie, it's an Aston-Martin, a Lotus, a BMW, or a Bentley... Read More »


The Higher End: Welcome to the New Look of Positive Feedback!


At last! And welcome! The NEW-LOOK Positive Feedback Web site will be going live on July 1, 2015, with the launch of Issue 80. You'll see that we've spent an enormous lot of time, effort, and money to take PF to a state-of-the-art new publication system. The results speak for themselves, as you'll see:  A... Read More »


Audio Ramblings – Acoustic Imagery Atsah Amplifiers and Jay-Sho Passive


Last late Winter… or early, early pre-Spring, depending on how you prefer your "pretty much the same with some slight differences, though not really all that much" seasons here is SoCal, I found myself staring at John Young's Acoustic Imagery Atsah (Htpex NCore 1200 Class D power amplifiers, $9995/ pair based on the Hypex NC1200... Read More »


Audio Ramblings – Verastarr Grand Illusion AC Power Cords


Verastarr Grand Illusion AC power cords ($2500 in 6 foot length) use high purity copper metal foils and produce a musical presentation that is big, bold, and robust. Not to be clichéd here, but being a copper-based cable, and using lots of copper to address skin effect with its four 2-inch wide foils, music with... Read More »


Your Final System (YFS) PS-12m Mac Mini Power Supply/Internal Power Filter Mod


If you're an audiophile, you realize at some point that digital spinning discs won't be around forever. Although that realization hit me several years ago, it took quite a while before I really decided to get serious about a digital source based on a computer. I'd heard several computer-based rigs at shows, and what I... Read More »


The Rega DAC-R: Will the Circle be Unbroken


Avec l'assistance de M. Bastille "We sang songs of childhood Hymns of faith that made us strong Ones that mother Maybelle taught us Hear the angels sing along" —"Will the Circle be Unbroken" by Johnny Cash OK, first I have to admit something. I'm about to receive an Ayre QB-9 DSD as my new reference... Read More »


Ready For Computer Audio? Ready To Rip, Download or Stream Your Large Collection? One Option To Consider: Murfie.


During my career with AT&T Bell Laboratories, I had many opportunities to visit some of the finest higher education institutions in the country. My focus was on central office switches for voice and data services—typically purchased and utilized by regional telephone companies for medium to large cities and urban areas. Of course these elite Universities... Read More »


Dr. David W. Robinson, Yarlung Records, and DSD


Dr. David W. Robinson, Yarlung Records, and DSD   David W. Robinson, enjoying some holy smoke of a recent afternoon. Photograph by John W. Robinson…yes, one of my sons, who was also enjoying a fine pipe! Bob Attiyeh is the President and Chief Producer-Audio Engineer at Yarlung Records. He has just released an article talking... Read More »


Dynamic Design Heritage Challenger AE15 Digital Power Cord


Power cords are a specialty within the category of audiophile connectivity that is mighty important. Those supplied with the gear, regardless of price, are merely included to allow the equipment to meet specifications and light the LEDs. They are best discarded and upscale cords should be used to tune your system for maximum performance. I... Read More »


The eXemplar System


A Little Background It's safe to say that mentioning John Tucker's eXemplar audio to an audiophile is likely to get one of three reactions. The most likely reaction is a blank stare accompanied by the questions "Who?" and "What?" There's a smaller group who hears the name and asks, "That guy with the big horns?"... Read More »


AK500N The Ultimate MQS Network Audio Player


I would have called this a Quicky, but lets bump it up to a First Look in honor of Astell&Kern's top effort to date to create a network server, ripper, and ultimate headphone station and more! This powerful digital device has graced my big reference system for two weeks and here is what I heard.... Read More »


The Garrard Project 2015: From Simple to Spectacular!


There's just something musically magical about the performance of idler-wheel Garrard transcription turntables that keeps me fascinated with them. Certainly the vintage Garrard 301 represents a beloved milestone of turntable design that remains enduringly popular with hi-fi enthusiasts to the present day, and who, like the 1956 Garrard advertisement below suggests, have concluded that Garrard... Read More »


Mourning One of Our Industry's Founding Fathers, John Ulrick


John Ulrick on the cover of Positive Feedback, Vol. 6, No. 4, 1996 Today I mourn the passing of a good friend and one of the men who helped found the high-performance audio industry, John Ulrick. Hired as a Circuit Design Engineer at Litton Industries right out of college to work with the Air Data... Read More »


Audio Ramblings - The DEQX PreMate: The Next Step to Sonic Bliss


I wrote a rather extensive review relating my experience with the DEQX Mate in Issue 67  where I quite succinctly reported how wonderful the unit was in making ALL things better with respect to my music. While you are certainly welcome to read the whole review, the key to what the DEQX does when properly... Read More »


Audio Ramblings - Skogrand SC Beethoven Speaker Cables


So here we have the Beethoven loudspeaker cables from Skogrand that at $22K are something I tend to never review. Actually make that never ever ever review. Just not at a price point that I am comfortable with, or one that I would ever consider as a purchase option—and yes, even with an industry accommodation.... Read More »


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