Bozar's Henry Le Bœuf Hall installs L-Acoustics L-ISA hyperreal sound system

Nearly a century after Victor Horta’s visionary design first opened its doors, Brussels’ iconic Palais des Beaux-Arts – lovingly known as Bozar – is once again making history. Inside its majestic Henry Le Bœuf Hall, a new era of sound has begun: a state-of-the-art L-Acoustics L-ISA Hyperreal Sound system, powered by the cutting-edge L Series, now fills the legendary 2,150-seat venue, redefining what live performance can feel like in one of Europe’s great cultural landmarks. 

For decades, amplified performances in the iconic hall relied on rented systems that could never quite match the venue's artistic ambitions. Now, with world-class artists like Sigur Rós, Bob Dylan, Kae Tempest, and Zaho de Sagazan gracing its stage this autumn, Bozar has equipped itself with technology that finally matches its legendary status.

"The new sound system is specifically designed to support Bozar's non-classical music programming," said Aurore Aubouin, head of music at Bozar. "This autumn, we are proud to welcome Sigur Rós, Kae Tempest, Bob Dylan, and Zaho de Sagazan, as well as Scylla with BNO, among many other world-class artists. This installation is also a strategic investment: by having our own permanent system, we no longer need to rely on renting equipment, allowing us to deliver the highest-quality experience to both artists and audiences."

At the core of this upgrade is L-Acoustics' L-ISA technology, which allows sound engineers to position individual instruments and vocals with pinpoint accuracy across the listening area. 

Working hand-in-hand with L-Acoustics Certified Provider XLR and integrator ARTO, Bozar chose to leap beyond traditional stereo configurations straight into the future of immersive audio.

"While the initial request was for a traditional stereo configuration, it became clear that the most meaningful choice was to invest in Hyperreal Sound," explained Louis Lukusa, CEO of XLR. "The L-Acoustics L Series system in an L-ISA configuration is the only solution that could provide uncompromising tonal balance, clarity, and realism for every seat in the hall."

"This new system transforms the way audiences experience music at Bozar," added Nicolas Bernus, technical production manager at Bozar. 

"The L-ISA spatial audio technology allows us to create a truly frontal, realistic soundscape where every detail of the performance is delivered with stunning clarity and depth. It's a major leap forward that aligns Bozar with the highest international standards, ensuring our audiences enjoy an unparalleled listening experience."

The technical achievement is as impressive as it is elegant. Using Soundvision modelling software, the team mapped coverage for every seat across the auditorium's curved geometry and multiple balconies. The final configuration features five precisely positioned hangs of L2D loudspeakers paired with two centrally flown hangs of four KS28 subwoofers that deliver powerful low-end without overwhelming the hall's natural acoustics.

Strategic placement of two Syva and two Syva Low cabinets at the stage edges broadens the sonic spectrum for orchestra seating, while a carefully distributed network of 15 compact 5XT enclosures along the stage lip and balcony fronts ensures crystal-clear intelligibility even in the front rows. 

The entire system is powered by LA7.16i, LA7.16, and LA12X amplified controllers that provide abundant headroom and surgical precision across every frequency range.

"Soundvision is the key to success when designing this kind of project," Lukusa said. "Everything starts with it; it is the first and most important step in the L-Acoustics ecosystem. With our long experience in designing and installing L-Acoustics systems, we know we can rely on Soundvision – what we see is what we will hear."

Henry Le Bœuf Hall's lively acoustic character has always challenged sound engineers, but the new L Series system Factor has turned this challenge into an advantage. The system delivers pristine intelligibility and uniform coverage all the way to the back row without raising sound pressure levels or unnecessarily exciting the room's natural reverberation.

"The L-Acoustics L Series handles Bozar's diverse programming effortlessly," said Lukusa. "Whether it's classical, pop, rock, jazz, or urban productions, the system adapts instantly. The ease of deployment offers highly valuable time savings, and the L-ISA Processor's control tools make it adaptable to any configuration. We can switch from a hyperrealistic immersive system to a stereo configuration with a single click."

The installation received full support from the L-Acoustics Applications team, who collaborated with XLR from initial design through final calibration. Training played a crucial role, with Bozar's technical staff completing dedicated courses at the L-Acoustics Education Centre to ensure complete mastery of their new sonic weapon.

The investment doesn't stop here. Bozar and XLR are already preparing to extend the immersive experience to the venue's Salle M, which will receive a 360° immersive A10 system early next year, creating a comprehensive ecosystem of cutting-edge audio technology.

"It is a long-term investment," Lukusa aconfirmed. "By offering artists, producers, and audiences the most advanced sound system available, Bozar has positioned itself at the forefront of the international stage."

“This system represents a major step forward in Bozar's technical capabilities,” Bernus concluded. “With L-ISA spatial audio, we can create a truly immersive soundscape where every nuance of a performance reaches every seat with stunning clarity. It's a leap that brings Bozar in line with the highest international standards and enhances our ability to host a diverse range of artists and productions.”

The inauguration of the new system took place in September, led by Bernus, with performances from Syla and the Belgian National Orchestra.