LOS ANGELES, CA – May 2026 – L-Acoustics today unveiled L1, the flagship of the L Series, and its companion cardioid subwoofer, CS1. Built on L-Acoustics patented Progressive Ultra-Dense Line Source (PULS) technology, L1 sets a new absolute reference for stadium sound systems that has already been entrusted to the world’s biggest stages.
L1 has been deployed on Bruno Mars’ The Romantic tour with Clair Global, for Harry Styles Together, Together tour with Solotech, and on Joker Xue’s world tour with MRT, as well as a debut at the Brit Awards in London with Britannia Row, a Clair Global company. CS1 delivered the low end on the main stages of Coachella Valley Music and Arts Festival with RAT Sound, and Ultra Music Festival with Unreal-Systems/AgorA.
L1 and CS1 also mark their first permanent installation at the Hollywood Bowl, deployed in a white architectural finish, and the venue where the company officially unveils the new technology, alongside the new L-Acoustics Source Intelligence™ audio processing platform at Keynote 2026. The event featured a performance by The War on Drugs.
L1 Breaks Every Performance Benchmark for Line Array Systems
Where previous large-format systems made incremental gains, L1 achieves a categorically higher concentration of transducers in an efficient form factor. Each enclosure integrates two 18″ low-cardioid (LC) transducers side-mounted for frontal energy and rear rejection, four front-facing 15″ low-frequency drivers, eight 8″ mid-frequency drivers, and six coaxial 4″+2.5″ HF compression drivers. This HF coaxial configuration, new to the L Series, increases SPL and long-throw capabilities.
The result is a maximum SPL of 160 dB per enclosure, across a full bandwidth of 35 Hz to 20 kHz, yielding best-in-class SPL per size, per kilogram, and per square meter. The companion wide vertical coverage L1D element matches this transducer architecture with a progressive 60-degree vertical coverage pattern for nearfield zones, achieving 155 dB SPL.
“L1 represents the highest expression of power, bandwidth, and pattern control ever achieved in line array technology,” said Germain Simon, Director of Product Management, Loudspeakers at L-Acoustics. “With PULS taken to its ultimate expression, we have broken every performance benchmark we set for large-format line source. L1 is a genuine turning point for the industry.”
