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Dean Waters at Pacific Audio Fest 2023: A Portrait with a Cigar. (Photograph and image processing by David W. Robinson)  About four months ago I received a Mola-Mola Tambaqui DAC and a Mola-Mola Perca stereo amplifier from Bill Parish at GTT Audio, and I've been using them as my daily-driver since then with much glee... Read More »

Bella Sound is the brain child of Michael Vice. Educated at UC Berkeley and Stanford in Physics and Electrical Engineering, Mike has poured his decades of experience and over 40 patents into his unique designs. Bella Sound's products include amplifiers, a power conditioner, and power cords, all based on Mike's conceptually novel approach, and married... Read More »

Audio by Van Alstine ("AVA") is a familiar name to long toothed audiophiles, but maybe not so much for newer audiophiles. Fifty plus years ago Frank Van Alstine founded AVA, building a reputation for good sounding, high value products. AVA started selling direct to consumers when that was called "mail order." I thought to describe... Read More »

It's not often that I get the opportunity to review an amplifier that harkens back to the days of yore—big, heavy, power hungry. It's a fun exercise to cleanse ones palate, so to speak, of all of the Class D amps I've been using lately. There was a period of time where I didn't enjoy... Read More »

Some 20 plus years ago, as a fledgling cub reporter for a local HiFi group, I was attending CES and the high-end show at the Alexis Park. That's when I had my first encounter with the Von Gaylord Legend speaker. I wandered into their room and waited for the next demo session. I took my... Read More »

Power to Drive Virtually Any Loudspeaker with Incredible Performance at a Ridiculously Low Price   I have a fairly constant presence on social media, particularly Facebook, and I belong to a number of audio-related groups there. So when I saw a post in one of them announcing the new Vera-Fi Audio Vera-Link Bluetooth Wireless Stereo... Read More »

Dean Waters on the hardware:  First contact with the KECES S300+ Stereo Amplifier I've been given the wonderful opportunity to listen to and evaluate the KECES S300+ dual-channel Class A / Class AB hybrid amplifier. What a marvelous experience! First time I've had goosebumps listening to recorded music since I can't remember how long. This... Read More »

Sometimes you listen to a piece of equipment, and its performance gives you pause. Sometimes that pause is a good thing because what you're listening to is performing better then you expect. Unfortunately, sometimes it's a bad thing, candidly most of the time it is a bad thing. However, this review is about one of... Read More »

The Parasound JC 5 stereo amplifier has been in continuous production since 2018 and has been reviewed many times over the years including reviews in Positive Feedback. I want to be upfront that I purchased the JC 5 prior to writing this review. I made the leap of faith based on the reputation of the... Read More »

Founded in 1964, and for 59 years now, Mactone has continuously manufactured high-fidelity vacuum tube audio components, longer than any other company in Japan. Steve Mishoe (In Living Stereo) started importing Mactone audio components to North America in late 2018, after visiting the Matsumoto family—who owns and operates Mactone—in Japan. Steve recently contacted me and... Read More »

This article by Ed Morawski originally ran in Issue 6, April/May 2003, 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. E.A.R. 864 Although I was very pleased with my Plinius CD-LAD preamp,... 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 »

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 »

This article by Gary Beard originally ran in Issue 5, February/March 2003, 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. A Lighthearted Look at the Lightweight ChAMP of the World: The Zero-Hysteresis... Read More »

This article by Dr. David Robinson originally ran in Issue 5, February/March 2003, 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. After All These Years... You know, it's strange. In PF's "Ghost of... Read More »

Black on Black Red October with Western Electric 300Bs and U52s ampsandsound continues to surprise and delight me. Last year it was with the Rockwell, which showed me what a DHT amplifier built around a less well known tube could do. ampsandsound also rolled out the new Agartha and converted their entire lineup (with the... Read More »

The Usher R-1.5 stereo amplifier is built like a tank. Its utilitarian industrial design bears a striking resemblance to the Threshold 300 Stasis designed by audio guru Nelson Pass, which should come as no surprise. In 1972 Usher Audio's owner and head engineer Lien-Shui Tsai built the first Usher R-1.5 amplifier as a copy of... Read More »

Prestigious power, glorious grace, and terrific transparency. Review By Dwayne Carter With this article, Positive Feedback continues its content-sharing relationship with Enjoy the Music where Dwayne Carter shares his thoughts on the Pass Labs X260.8 Monoblock Amplifier. Dr. David W. Robinson, Editor-in-Chief Pass Laboratories, Inc., is a name that most audiophiles utter, after describing a product that comes... Read More »

Each Zion weighs nearly 75 pounds As I sat in my listening room with the lights dimmed, I began to take a journey. My journey started with the Red Hot Chili Peppers' Unlimited Love, and I then found myself listening to Mark Knopfler's Down the Road Wherever. After awhile I ventured onto St Vincent's MasSeduction, with a short... Read More »