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Kryna Inc. was established on 21st May 1980 in the city of Machida-shi, which is part of Tokyo Metropolis. Its CEO is Mr. Ryoka Ina who employs only five people. The company offers both cables and vibration reducing products. We are testing an untypical product, the Helca 1 and Helca 2, RFI/EMI and vibration filters,... Read More »

Everything you want to know about the recording of Blue Train's behind-the-scenes and which of the digital reissues of this jazz masterpiece are the best. On September 15th 1957, John Coltrane walked into Rudy Van Gelder's studio in Hackensack and recorded a masterpiece album: Blue Train. It was the only album by a saxophone leader... Read More »

Or about computer sound recording systems. Pt. 3 : MUSIC (II) It all started in January 1971 with the world's first LP with digitally recorded material. In a long chain of successive recorders - among Denon Digital, Soundstream, 3M, ProDigi, DASH, ADAT, RADAR - DAW, or Digital Audio Workstation, is the latest development. And this is... Read More »

dCS is a British company based in Cambridge focused on development of digital audio sources—D/A converters, SACD and files players. It made its debut in 1987 in the military industry (radar). The first A/D converter, model 950, from 1989 was intended for recording studios, and only after some time they also designed versions for home... Read More »

Or about computer sound recording systems It all started in January 1971 with the world's first LP with digitally recorded material. In a long chain of successive recorders—among DENON Digital, SOUNDSTREAM, 3M, ProDigi, DASH, ADAT, RADAR - DAW, or Digital Audio Workstation, is the latest development. And this is its story. DIGITAL SOUND RECORDING –... Read More »

ThunderData Co. LTD. is a company founded by Dr. Eric Jian Huang. It is engaged in the production of servers, network communication, data management, network storage software, hardware engineering, etc. The company operates in the hi-tech industry and focuses on 5G mobile networks and 8K video transmission. Its audio offer is concentrated in two series... Read More »

Or about computer sound recording systems It all started in January 1971 with the world's first LP with digitally recorded material. In a long chain of successive recorders—among Denon Digital, Soundstream, 3M, ProDigi, DASH, ADAT, RADAR - DAW, or Digital Audio Workstation, is the latest development. And this is its story. DIGITAL SOUND RECORDING –... Read More »

One of the few Polish audio brands that conquered global markets, highly acclaimed among both users and reviewers around the world, J. Sikora, after several years of consolidating its market position, prepared premiere products for the last Audio Video Show in Warsaw—new, improved versions of their fantastic tonearms. For this test, we received the first... Read More »

Part 1: About the Brain From the Editor In her first column for High Fidelity, Malwina Prus-Zielinska talks about how our brain works and what sounds have to do with it. Women's Listening is a series of essays written by Malwina Prus-Zielinska, an occupational therapist by profession, a music fan by choice, and an audiophile's... Read More »

Weiss was founded in 1985 in Uster, Switzerland by Daniel Weiss, previously an employee at STUDER, where he specialized in designing frequency converters used in its digital recorders. Until 2000, he specialized in digital devices for mastering studios, and later he proposed D/A converters for audiophiles. We are testing its top D/A Converter designed for... Read More »

GHOST is a Swedish band playing a genre of hard rock, formed in Linköping in 2006. In 2010 the band released its demo and then a complete album entitled Opus Eponymous. Since 2013, their album covers have been designed by the Polish graphic designer Zbigniew Bielak. We are reviewing the Japanese version of their latest... Read More »

SoulNote is a Japanese company, founded in 2004 by the ex-director of Marantz Nippon, an engineer, Mr. Norinaga Nakazawa. It specializes in the construction of solid-state amplifiers, phono preamplifiers and digital sources from the middle and upper price range. We are testing its P-3 Special Edition linestage. Mr. Norinaga Nakazawa, co-founder of the SoulNote brand,... Read More »

Crosszone is a specialized audio company, founded in 2016 in Japan by the Taiwanese company Asia Optical Inc., a manufacturer of lenses and optical systems. It is headed by Mr. Robert Lai, and the first product was the CS-1 headphones. We are testing its latest product, the CS-8A headphones. The headphone selection on the market... Read More »

WORLD PREMIERE The Italian company Grandinote was established in 2005. Its founder and chief designer is Massimiliano "MAX" Magri. Their first product was the A Solo amplifier, and the most important technology they use is called Magnetosolid. We are premiere testing their largest integrated amplifier, Supremo. If you look at the Grandinote's lineup, you will... Read More »

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 – 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 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 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 »

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 »