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Audio Note Cobra Integrated Tube Amplifier


Audio Note is a company founded in 1976 (company site says October 1979) in Japan by Hiroyasu Kondo. The first products hit the world markets in 1989. In 1997, the company split into two parts, Kondo Labs, focused on the Asian market, and Audio Note UK, responsible for Europe and the rest of the world.... Read More »


The Editors Series № 34 - Roy Gregory


The Editors is a series of interviews with audio magazine editors from all over the world—both printed and online magazines, and portals. It started on January 1st, 2012, and 33 interviews have been published so far—the one below is No. 34. Our aim is to make our readers more familiar with the people who usually... Read More »


Octave Jubilee PRE Preamplifier and MONO SE Amplifiers


Octave Audio is a German company founded in 1968 by Karl Heinz Hofmann; initially it produced transformers. In 2000, his son, Andreas Hofmann took over the business, and from then on it has been called Octave Audio. We are testing the top Jubilee system. Although the first Octave amplifiers were made in 1975, and since... Read More »


RADAR Recording Technique - Part 2: MUSIC


RADAR – Random Access Digital Audio Recorder. The first fully functional HDD non-linear recording system Or how album recorded using RADAR sound like DIGITAL SOUND RECORDING  – method of preserving sound in which audio signals are transformed into a series of pulses that correspond to patterns of binary digits (i.e., 0's and 1's) and are... Read More »


Acoustic Revive RGC-24K - Artificial Round Conditioner


Acoustic Revive is a Japanese company that was set up in 1997, run by Mr. Ken Ishiguro-san. It specializes in connectors and anti-vibration products, but also offers innovative devices, most often the brainchildren of the University of Tokyo. We are testing one of the company's products that filter ground interference—the RGC-24K. The artificial ground, or—as... Read More »


A Reference System as a Source of Heartache or Joy


A reference system is a fundament of audio reviewer's work. It is his working tool. It turns out, however, that although we all want the same thing, and we want to capture the nature of the tested product or the reviewed album as best as possible, the way to achieve it can very significantly. It... Read More »


The Editors Series 33 - Jim Austin of Stereophile


№ 33 of High Fidelity's "The Editors Series" of interviews. "The Editors" is a series of interviews with editors of audio magazines from all over the world—both printed ones, as well as online magazines and portals. It started on January 1st 2012 and 32 interview records have been published so far—the one below will be... Read More »


Krakow Sonic Society Meeting 132 - Siltech Classic Legend


Krakow Sonic Society  is an informal group of music lovers, audiophiles, friends, meeting to learn something new about audio products, recordings, music, etc. The idea for KTS was born in 2005 and this is now its 132 meeting. Many steps led to the 132 meeting of the Krakow Sonic Society—bigger and smaller, but necessary ones.... Read More »


RADAR - The First Fully Functional HDD Non-linear Recording System


Part 1: TECHNOLOGY Or why a recording is not a document and what does it mean DIGITAL SOUND RECORDING  – method of preserving sound in which audio signals are transformed into a series of pulses that correspond to patterns of binary digits (i.e., 0's and 1's) and are recorded as such on the surface of... Read More »


Acoustic Revive RTS-30 and RKI-5005 Turntable Sheets and Anti-vibration Pads


WORLD PREMIERE Acoustic revive is a Japanese company founded in 1997 and run by Mr. Ken Ishiguro-san. It specializes in connection cables and anti-vibration products, but offers also  innovative products, the ideas of which are most often sourced from the University of Tokyo. We test its products containing a mineral called Kiyoh-stone. The use of minerals... Read More »


Krakow Sonic Society Meeting 130 - Impex Records' S1TEP Patricia Barber, Café Blue 


Krakow Sonic Society is an informal group of music lovers, audiophiles and friends who meet to learn something new about audio products, records, music, etc. The idea for the Society was conceived in 2005. This is already its 130th meeting. It took both Impex Records and High Fidelity a while… And it started as usual:... Read More »


Acoustic Revive RWL-III Absolute Acoustic Panel


Acoustic revive is a Japanese company founded in 1997 and run by Mr. Ken Ishiguro-san. It specializes in audio cables and anti-vibration accessories, but it also offers innovative products, the ideas of which are most often inspired by the University of Tokyo. We are testing one of the products used to correct room acoustics, the... Read More »


Colored Vinyl


Colored vinyl, or a few words about the phenomenon of colored vinyl with the Komeda Quintet's Astigmatic in the version released on the artists 90th birthday as an example. Colored vinyl LPs are flooding shops and the Internet. What's the point in that? Do consumers really get more or is it just a way to... Read More »


Acoustic Revive RPC-1K Passive AC filter


Acoustic revive is a Japanese company founded in 1997 and run by Mr. Ken Ishiguro-san. It specializes in audio cables and anti-vibration products, but it also offers innovative ones, the ideas of which most often come from the University of Tokyo. We are testing one of the products used to filter the AC supply voltage,... Read More »


Alesis ADAT - 30 years of Digital Recorder that Revolutionized the Music Industry, Part 2


Part 2: RECORDINGS In the 1990s, the music industry moved from reel-to-reel recorders, both analog and digital, to DAW recording systems, i.e. computer workstations. The Alesis Electronics ADAT digital multi-track tape recorders represent a turning point in this history. DIGITAL SOUND RECORDING  – an audio preservation method in which the audio signals are converted into... Read More »


The Secret Life of Audio Systems


There are issues that drive me crazy, truly. I try not to give in to them, I look away and look for more interesting activities, but eventually, sooner or later, they come back to me. I am thinking mainly about how pavements are treated. Once the NOT office building, commonly known as the Szkieletor, today... Read More »


Muarah MT-1 EVO and PSC Precision Speed Controller


Muarah Audio made its debut during the Audio Video Show 2015 with a complete system designed for playing music from vinyl records. Associated primarily with turntables, it also offers electronics. This time, however, we are testing its flagship MT-1 EVO turntable with a PSC precise speed controller. The title of one of the articles on... Read More »


Krakow Sonic Society Meeting No.129 - Santana's Santana


We are listening to the album: Santana, Santana Krakow Sonic Society is an informal group of music lovers, audiophiles and friends who meet to learn something new about audio products, records, music, etc. The idea for Krakow Sonic Society was conceived in 2005 and this is already meeting No. 129. THE MUSICIAN In the last few years,... Read More »


Polish Jazz Remasters 2016


Two more titles from the "Polish Jazz" series in the new releases of Warner Music Poland: Young Power, Young Power. Polish Jazz vol. 72 Jaroslaw Smietana Sounds & Colours. Polish Jazz vol. 73 The "Polish Jazz" series is one of the national treasure of Polish culture—and I say it with full conviction. As part of it, selected,... Read More »


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