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PBN Olympia EB-SA3 Amplifiers and Lxi Preamplifier


Big Amps, Big Power Done Right. PBN is pretty well known for Peters Noerbek's wide range of speakers, a pair of M2!5s which I recently reviewed (HERE) took up floor space at my home for the majority of this review. So what better time to give his new Olympia mono amps and Olympia Lxi 2... Read More »


The Gudebrod Audio 3T12V Tube Preamplifier Strikes a Nice Balance


Arlington Heights, IL - The music swirled about the room like wine in a sommelier's mouth. I'd first heard them in a packed Arlington Room at the Arlington Heights Historical Museum in February 2018. The frozen, yellow grass out front was thawing and inside, principals Eric Krupp and John Brunner were demonstrating their Gudebrod Audio... Read More »


Reimagining Net Neutrality: The Mola Mola Kaluga Class D Mono Power Amplifiers and Companion Makua Preamplifier (with onboard DAC and Phono Modules)


The Unbearable Joy of Thinking Outside the Box Now that GTT Audio & Video head Bill Parish and I are finally back on friendly terms (heck, he even calls me on the phone occasionally to give me a hard time, and to ask when I plan on finishing the reviews I promised to write, if... Read More »


Audio Research Reference Phono 3 - One Smart Phono Stage


Phono preamplifiers come in all shapes and sizes and with varying amounts of user adjustability and convenience. The ARC Ref 3 phono preamplifier is hands down the smartest phono section I have ever had the pleasure of using and listening to. At the bottom of the intelligence pecking order are phono preamplifiers that only have... Read More »


Linear Tube Audio's Microzotl Preamplifier and ZOTL40 Reference Amplifier


Prologue: A Berning Desire Many years ago, I purchased a boxy little bespoke headphone amp for my Sennheiser HD600's called a MicroZOTL. Built by a mysterious mid-Atlantic, not-so-mad audio scientist by the name of David Berning, the MicroZOTL was a mighty tiny wonder. I loved it so much I had physicist / audio manufacturer Berning... Read More »


Backert Labs Rhumba Extreme 1.3 Preamplifier: A Neutral Presentation That Excels in Micro Dynamics and Harmonic Delicacy


Review By Dean Cacioppo With this article, Positive Feedback continues its content-sharing relationship with Enjoy the Music. Dean Cacioppo shares his thoughts about the Backert Labs Rhumba Extreme 1.3 Preamplifier. Read, and learn.... Dr. David W. Robinson, Editor-in-Chief In my humble opinion, the two most under appreciated aspects of high-end audio are room acoustics / speaker placement and... Read More »


Simaudio Moon 390 Network Player and Preamplifier


We're Gonna Spread Our Wings And Take To The Sky For some time now I've been attempting to implement, to my satisfaction, a home built music server/home theater PC. Being an audiophile, I set the bar higher for sound than picture. But until just recently my attempts have not produced sound quality competitive with my... Read More »


Wells Audio Commander Level II Tube Line Stage


World Premiere Review! I found myself often thinking of Van Morrison's terrific tune "Cleaning Windows." Review By Dr. Jules L. Coleman With this article, Positive Feedback continues its content-sharing relationship with Enjoy the Music. Dr. Jules L. Coleman shares his thoughts about the Wells Audio Commander Level II Tube Line Stage. Read, and learn.... Dr. David W. Robinson,... Read More »


German Physiks Emperor Preamplifier


 At 66 pounds, it took two of us to carefully hoist the new German Physiks Emperor Preamplifier onto my rack. This is the heaviest preamp I've had since the mbl 6010D a decade ago. That was so huge I needed to get height extenders for my TAOC rack. The Emperor is not that big, just... Read More »


Schiit Freya + Preamplifier


With a legion of followers, Schiit have been in the audio game for a while and have organically grown from simple and humble beginnings. Headed by Jason Stoddard and Mike Moffatt, the company have held a strong value for money philosophy and have constantly released affordable yet high quality gear earning them many accolades amongst... Read More »


Benchmark Media Systems LA4 Line Amplifier


  The LA4  Line Amplifier is a linestage preamp introduced by Benchmark Media Systems in 2018. Priced at a very competitive $2495 USD, the small, squarish LA4 comes securely packaged, and includes a power cord, 12V trigger cable, and a manual complete with test reports. The review LA4 was furnished with the optional remote (add... Read More »


Parasound Halo P 6 2.1 Channel Preamplifier and DAC


It Even Makes Julienne Fries It was a golden age for Television, or perhaps commercials in the 1960s. The Ronco Veg-O-Matic hit the market, promising  to ease the life homemakers everywhere. This food slicer did it all; its catch-phrase, "It slices! It dices! It even makes julienne fries!" became the go-to reference for multi-function devices... Read More »


Constellation Inspiration 1.0 Linestage and 1.0 Stereo Amplifier: The Definition of Value


The Constellation Audio Inspiration 1.0 Linestage and pair of 1.0 Stereo amplifiers, driving the GamuT Flagship Zodiac Loudspeakers. From the Beginning For a company that just recently celebrated only its 8th birthday, Constellation Audio has proven itself virtually unparalleled in both accomplishment and acceptance. My first take was at their 2010 CES introduction, where I... Read More »


Mytek Brooklyn DAC+ and Brooklyn Amplifier


I was recently introduced to Mytek, a company out of Brooklyn, NY that specializes in digital electronics. Not being known for being the go-to guy for digital I thought the opportunity to try something completely different was something I could not pass up. Suffice it to say right up front that I am glad that... Read More »


Experiences with Gryphon Audio


Mythical Sound from the Winged Lion. How many manufacturers offer fully designed turn-key systems? How many do it with the panache of Gryphon Audio of Denmark? The answer can fit on one hand if you were missing at least two fingers. My first encounter with Danish designer Fleming Rasmussen's Gryphon Audio came with the review... Read More »


From an Editor’s Notebook: Glances in the Rearview Mirror


Ye Olde Editor, late summer 2018:  a portrait by John Robinson A late-year glance backwards. Memory, music, people, associations… "No sooner had the warm liquid mixed with the crumbs touched my palate than a shudder ran through me and I stopped, intent upon the extraordinary thing that was happening to me. An exquisite pleasure had... Read More »


Impressions:  The Audionet STERN Preamp and HEISENBERG Monoblock Amp, Finale


Ye Olde Editor:  a portrait by John Robinson Audionet's STERN and HEISENBERG:  Back to the mountaintop again! Fair warning:  This is yet another one of my evaluations that is not going to be a typical "review." No, not with these designs. This is going to be more of a culminating mediation on my experiences with... Read More »


Pass Labs XP-12 Preamplifier


Prologue I used Pass Labs' XP-10 as a reference preamplifier for most of 2017. I had no problem distinguishing it from my previous reference, a circa 1995 YBA Alpha 1 linestage. The XP-10 was more relaxed in the midrange and had every bit as much detail while forming more realistic renderings of bass depth and register... Read More »


Impressions:  the Accustic Arts Tube Preamp II Mk2 Preamplifier and Mono II Monoblock Amplifier


Image courtesy of Accustic Arts A bloody busy year so far, with much more to go. One of the projects that I took on very early in 2018...with some hesitation, I confess, due to the workload that was already building...was an offer to hear the Accustic Arts Tube Preamp II Mk2 and Mono II Monoblock... Read More »


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