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Qualia physic Q1 Mains Filter


I do not know if you remember our interview with Daniel Břeizina, the editor-in-chief of the Czech portal HiFi-Voice.com, published in the previous High Fidelity edition (No. 159, read HERE). Just in case, let me remind you that when he was asked for advice for a beginner music lover and audiophile, he said that it... Read More »


33 Rackit Modular Record Storage Unit


For many years, Per Madsen in San Francisco made elegantly designed modular record racks which were prized by record collectors and audiophiles. With oak LP modules as well as modules for CDs and cassettes, many thousands of his Rackit modules were sold over the years. But then, in 2008, Mr. Madsen decided to retire and... Read More »


Fidelizer's Nimitra and Nikola Linear Power Supply


Fidelizer Nimitra About two months into my first job—bagging groceries—I had a recurring nightmare. Mid-conversation I would discover I was sitting cross-legged on the counter next to the register wearing only my boxer shorts. Writing about computer audio makes me feel, well, let me say my nightmares involve fewer clothes these days. As foreshadowing for... Read More »


Grado Labs Prestige Black2 Phono Cartridge: A World Premier Review


Have I got great news for you! The development of the brilliant, new Epoch $12,000 Grado Lineage Series Cartridge (see my review of it in PF Issue 92 HERE), incorporating unique and inventive engineering galore, caused the design team headed by John Grado himself to rethink the entire cartridge line-up! This includes their entry-level cartridges.... Read More »


Ripping CDs Made Easy...The Acronova Nimbie USB Plus Disc Autoloader


Ripping CDs is a job that's easy to put off.  "Honey, what's the plan for these CDs?" my wife says sweetly. I may be a little obtuse at times, but even I speak enough Spouse to know that what she really means is, "When are you going to get off your duff and do something... Read More »


SPEC RSA-F33EX Integrated Amplifier


The SPEC company and its founder, Mr. Shirokazu Yazaki, as well as its main constructor, Mr. Banno Tsutomu, have a special place in my heart. I was the first person from outside Japan to test the company's products and my relationship with Mr. Shirokazu is especially close. It was no coincidence that he described the... Read More »


The Linear Tube Audio Micro ZOTL MZ2 Headphone Amplifier/Preamplifier and ZOTL 40 Amplifier


When I listened to the Spatial Audio M3 Turbo S (read that review HERE) I was hoping to pair them with the Linear Tube Audio Micro ZOTL MZ2 preamp/heaphone amp and ZOTL 40 power amp. Clayton Shaw of Spatial audio opined that the pairing of the LTA components driving his M3 Turbo S was magical,... Read More »


Parasound Halo JC 3 Jr. Phono Preamplifier by John Curl:  Premier Review


Having known the legendary John Curl's work since he did the JC2 Preamplifier for Levinson in 1972, a ground-breaking design for solid-state, and every bit as competitive as the tubed ARC SP-3a-1 of the era, I fearlessly replaced my current mega phono gear, both tube and solid-state, with the Parasound Halo JC 3 Jr. Phono Preamplifier, costing just... Read More »


conrad-johnson CA150 Control Amplifier


Bill Conrad and Lew Johnson of Virginia-based conrad-johnson feel that typical integrated amplifiers are compromised in performance compared to high-end separates. Audio manufacturers, they posit, build integrated amplifiers to meet a price point, sacrificing parts quality and sonics along the way. The CA150 Control Amplifier represents conrad-johnson's answer to the ubiquitous integrated amplifier. Note the subtle distinction in terminology—conrad-johnson refers to the CA150... Read More »


Sonore's UltraRendu Streamer with the UpTone Audio UltraCap™ LPS-1 Linear Power Supply


Streaming is the future of computer audio. Anyone who's serious about playback of digital files knows that streaming is essential to achieve the ultimate in effortless, totally transparent playback. Think of it like this: with computer audio, there's no transport, per se; you can have the world's greatest digital-to-analog converter, but you've still gotta have... Read More »


Merrill Audio Veritas Monoblock Amplifiers: Are All Class-D Amplifiers the Same?


Have Class-D amplifiers gotten a bad rap? Despite my colleague Guido Corona's enthusiastic review of Merrill Audio's Veritas amplifiers (HERE) some four years ago, the sound and performance of all Class-D amplifiers still tends to be lumped together and in the words of the immortal Rodney Dangerfield, "…don't get any respect." Is or isn't that... Read More »


Unique Innovation Technology (UIT) Perfect Music Purifier (PMP) Interconnect Series: A Postscript


Many of our readers will have read my earlier rave review of the Unique Innovation Technology (UIT) interconnects back in Positive Feedback Issue 92. With some 18 meters of UIT Interconnect included in my two systems, I can now further report on the extraordinary performance of this under-$1000 per meter  interconnect development for audiophiles and music lovers. I... Read More »


Happy Happy Joy Joy - PASS Labs XP-10 Preamplifier


Reviewing Reviewing has been a boon to me. I enjoy audio and music more than I ever have because of it. While my time for listening is pinched by my life outside of audio, I enjoy a greater variety of music than ever. I've discovered the wonder underneath the horror of the distant shore of... Read More »


NSMT A100 Amplifier


I am so excited about this amplifier I don't know where to start. First and foremost is its surprising performance. Secondly is the price. For something so small and inexpensive, it seems only natural that expectation bias rears its ugly head. But that would be doing anyone with even a passing interest for this amplifier... Read More »


Air Tight’s Top-of-the-Line Cartridges: The Supreme and Opus


Air Tight's Supreme and Opus Cartridges What's the Pecking Order? "That would make life very interesting, but wouldn't it be overkill?" I was in the middle of a Thales turntable review and had the TTT-Compact II table and Simplicity II tonearm on the floor mounted with my Air Tight PC-1s MC cartridge ($14,500, $9200, and... Read More »


The Arai Lab MT-1 Step-Up Transformer for Moving Coil Phonograph Cartridges


One look at the Arai Lab MT-1 step-up transformer (SUT) and you'll know in a moment that it is a very serious, ultra-quality, audio product. The fit and finish are impressive and impeccable, yet what really stood out for me was the Arai MT-1's considerable size and weight—it wasn't that much smaller than one of... Read More »


Astell & Kern AK T1p Headphones


Exciting news! Astell & Kern has some really great new headphones that you need to know about. They're the A&K T1p, and I think they're terrific! Extravagantly made for A&K, the T1p is a modified German beyerdynamics Tesla Gen. 2 headphone that are hugely popular in Great Britain and the EU. The A&K T1p, which are Cartier-like beautiful and... Read More »


LP Gear Vessel R3SV Cartridge


When the final rays of light faded from the horizon on what was widely perceived as the twilight of analog playback in this hobby, there was a tragic loss of cartridge manufacturers and their parts suppliers. In those days, the high point of cantilever technology had been realized, and the stylus assembly mass of cartridges... Read More »


Charisma Reference Two Moving Coil Cartridge: A Honey of A Midrange


I covered back in Issue 80 of Positive-Feedback an entirely new moving coil cartridge from Bernard Li and Charisma Audio in Canada. The $1495 Charisma MC-2 cartridge rapidly made itself at home and didn't embarrass itself in my reference system. Nor was there any doubt by the end of the review that the MC-2, "is... Read More »


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