3 9 3 DIY
Stefan Riedel took part in the OSIL-IKO summer school and in the following months, designed the 393 beamforming-loudspeaker array, a sort of DIY version of the IKO that can be built at home for 10% of the listed IKO price.
In the course of his Master’s with supervisor Franz Zotter, Stefan developed a 3D printable housing for a compact spherical loudspeaker array. To be precise, a mixed-order array of 15 loudspeakers arranged in three rings, 3|9|3, achieving 4th-order beamforming on the equator.
Gerriet K. Sharma, Franz Zotter, and Matthias Frank investigated the new tool through listening tests and by developing new spatial compositions in a WTZ Styria funded 3-months research project.
In 2021 spæs lab asked Stefan Riedel to customise two 393s for the lab and developed its own amplification approach with Richard Lucchesi.
Since 2020 Gerriet K. Sharma has been working on live performance pieces and installations using the 393:
BirdL0re for 393, double bass, and subwoofer (2022)
simmmmrrrrnn for 393, and subwoofer (2021-23)
Please, Excuse The Details Of My Disbelief, for guitar, accordion, 393, and subwoofer (2023)
ATOLL sound installation for two 393s, subwoofer, and translucent reflector screens (in progress).
“The 393s will change artistic approaches to sound as space fundamentally.” (2023, gksh)