L-Acoustics 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 System sets a new absolute reference for stadium sound systems that has already been entrusted to the world’s biggest stages. 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. 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.

With four 21″ transducers in a cardioid topology, subwoofer CS1 delivers peak SPL up to 150 dB and extends bandwidth down to 25 Hz. The CS1 delivers the sub-bass power and impact that the biggest shows in the world demand while preserving acoustic integrity across the site. L1 and CS1 are currently in pilot phase with a select group of L-Acoustics certified partners. Availability for qualified partners is planned for early 2027.