SX-R4+ Update / SX-AD8+ AVB / IRCAM
A brighter display
A new touchscreen display for the SONOSAX SX-R4+ will be soon available, much brighter and visible in direct sunlight (see photo below). We are pleased to offer you an upgrade comprising:
- The new display with it’s corresponding driver PCB
- A full overhaul of your SX-R4+
- A full Firmware update
- A new 3 month warranty
This up-grade will be available between the end of April and end of May. It is offered at CHF 380.00 excl. shipping and taxes. Please contact us by e-mail if you wish to schedule this up-grade.
Firmware Update
A new firmware is also in preparation and is currently undergoing testing. This release will correct some bugs and improve overall stability.
Once testing is complete, it will be available on our website during the month of March.
Please check our website for this update and for the procedure at: https://sonosax.ch/product/sx-r4p/
SONOSAX SX-R4+ Availability
We are pleased to announce that we are starting a new production run of the SX-R4+, with the first units expected to be available in around six months.
SD Card formatter
As you know, not all SD cards are equal and even new high speed cards may lead to errors (Speed Error).
SD cards are also somehow “ageing” and this error may happen after using cards for a few month only.
We recommend you to reformat your cards on regular basis using the specific SD Card formatter courtesy provided for free download by the root organization “SDcard.org”.
We noticed significant improvements in speed and reliability on pretty old SD cards after using this formatting utility.
For Windows
https://www.sdcard.org/downloads/formatter/sd-memory-card-formatter-for-windows-download
For MacOS
https://www.sdcard.org/downloads/formatter/sd-memory-card-formatter-for-mac-download
NOTE: For optimal results you must select “Overwrite format”. This is a slow process that takes about one hour to format a 128Gb card. Be patient.
IMPORTANT: After formatting your SD card with this specific SD card formatter, you MUST reformat your cards to UDF format using the formatting utility in the SYSTEM menu of the SX-R4+.
SONOSAX SX-AD8+ and AVB
A new firmware allows the SX-AD8+ to connected via AVB to the latest MAC (running on the latest MacOS).
Obviously the SX-AD8+ must be equipped with the optional AVB board, part nr 024291.
This firmware is available along with the installation procedure at: https://sonosax.ch/product/sx-ad8/
SONOSAX part nr 024291
The SONOSAX SX-AD8+ equiped with this AVB board supports PoE on RJ45 connector, it operates at 48, 96 and 192kHz.
More information about the AVB board at: https://www.sonosax.ch/product/024291/
New deliveries of SONOSAX SX-AD8+ automatically include the latest firmware.
IRCAM chooses SONOSAX SX-AD8+ with DANTE
We are very pleased and honored that IRCAM – Institut de Recherche et Coordination Acoustique/Musique – has chosen the SX-AD8+ for their research and developments. Below is what Richard Rentsch and José Miguel Fernández say about their works.
As part of our creative and research project dedicated to human/machine co-improvisation with Somax2 artificial intelligence agents (developed at Ircam, Paris), it is essential to be able to analyze the sound of instruments with a high degree of precision in order to guarantee reliable and musically relevant results in real time.
That’s why we chose the Sonosax SX-AD8+ preamplifier, combined with its Dante extension, for both our studio testing sessions and our live performances.
The remarkable quality of its preamplifiers, the stability of the system, and the portability of the SX-AD8+ allowed for optimal use at two Improtech international festivals, in Tokyo and Paris, as well as during a concert at the Rolex Learning Center at EPFL with pianist Richard Rentsch, in collaboration with José Miguel Fernández and Somax2 AI agents.
CARNET NOIR
Georges Quellet, founder of STELLAVOX, passed away on February 26, 2026.
This man, whom I had the privilege of meeting on several occasions, concealed a profound humanity beneath his initially somewhat austere exterior.
He was as kind as he was approachable, and from the very first moments of our encounters, he showed remarkable generosity of spirit. He knew how to share his convictions and knowledge with infectious enthusiasm, leaving those who knew him with memories of a man of heart and dialogue.
His devices were a source of inspiration to me.
My thoughts go out to his wife, his entire family, and his loved ones.
Jacques Sax
Jeff Wexler
I met Jeff in the 1980s. He was one of the first users of the SONOSAX SX-S. I remember him as a very friendly and welcoming person with a very open mind.
Totally passionate about sound in cinema, Jeff contributed greatly to its development and helped to advance the profession of cinema sound recording thanks to his curious mind. He had an engaging personality that left no one indifferent.
Jeff also knew how to bring people together, notably by creating the website https://jwsoundgroup.net/ a forum and reference site that is the go-to destination for thousands of users and professionals
Jacques Sax