L‑ISA was born of the union between a team of sound engineers from the performing arts, professional audio equipment designers and experimental research engineers in acoustics and signal processing.

Together, they have introduced new concepts for professional sound reinforcement in order to provide the creators of music, designers and sound engineers with a platform for three-dimensional sound creation.

Building on their experience in the performing arts and the professional audio industry, L‑ISA designs professional and private sound installations to deliver immersive hyperrealism.

Creative Team

Christian Heil


After founding L‑Acoustics in 1984, Christian Heil has left his mark on the professional audio industry with his introduction of the Line Source Array which revolutionized sound systems in live performance venues.

Combining a scientific mind and entrepreneurial spirit, Christian surrounds himself with the best scientific and technical experts in various fields of professional audio in order to diversify the group’s innovations.

Within this context, L‑ISA was created in 2012 to accelerate the company’s research into sound design and multichannel technology, as well as to provide the creators and producers of sound and musical events with new and exciting tools.

Guillaume Le Nost

Director of R&D, L-ISA

Driven by a passion for sound and technology, Guillaume has built a career in both the artistic and technical domains.

After getting two MScs in electrical engineering and signal processing from Ecole Centrale Paris and IRCAM, he started a research career in 3D sound, and received a PhD in Acoustics. He then performed as a professional rock musician and managed an indie music label before going on to co-found the start-up AudioGaming, a pioneer in audio synthesis technologies and French Ministry of Research award-winner.

He joined the L‑Acoustics R&D department in France in 2009 where he led projects on acoustic measurement and simulation, and developed new signal processing algorithms for integration into L‑Acoustics software and amplified controllers. Guillaume moved to London in 2012 to head the research team for L‑ISA, from where he continues to pursue his passion for live music and regularly performs in electronic or jazz ensembles.

Sherif El Barbari

Director of L-ISA Labs

Having spent his teens as a drummer in a hard rock band in Cairo, Sherif’s connection to live music was established at an early age.

His ever-growing interest in live sound mixing and sound reinforcement speaker configurations led him to choose a career at the mixing desk, while still taking part in the artistic procedure of creating live music.

One of the earliest and most faithful adopters of L‑Acoustics’ innovative V-DOSC speakers, Sherif has put his knowledge and experience to the benefit of artists from many musical domains as FOH and system engineer for their worldwide tours: Deep Purple, Supertramp, Montserrat Caballé, Robbie Williams, a-ha and Radiohead, to name but a few. Between world tours, he has also worked as a consultant for live sound industry equipment manufacturers including L‑Acoustics, before being snapped up by Christian to focus his immense talent and musical intuitions on the application of L‑ISA.

Christophe Combet

Director of Sound System Design

Genio Kronauer

Director of Electronics

Projects Team


Florent Bernard

Director of Application, Touring


Cédric Montrézor

Director of Application, Install


North America

Scott Sugden

Head of Applications US


David Brooks

Application Engineer


L-ISA Labs

Sylvain Biguet

L-ISA Labs Engineer

Carlos Mosquera

L-ISA Labs Engineer, US