The L-Acoustics SB15m is a compact, high-power 15-inch active subwoofer designed to deliver exceptional low-frequency performance for portable and installed sound systems. It features a vented enclosure housing a long-excursion 15-inch neodymium driver, powered by an integrated high-efficiency Class-D amplifier with dedicated onboard DSP (Digital Signal Processing). This self-contained, powered design ensures optimal alignment between the driver and amplifier, providing precise control and protection while simplifying system setup by eliminating the need for external amplification. The subwoofer is engineered to produce deep, articulate bass with high output capability, making it an ideal companion for L-Acoustics' compact coaxial loudspeakers and a versatile choice for a wide range of applications including live sound, corporate events, touring, and fixed installations.

A key feature of the SB15m is its sophisticated DSP, which includes factory-preset tuning for various applications, such as extended low-frequency response for music or optimized settings for speech reinforcement. The processing manages critical functions like crossover filtering, phase alignment, EQ, and dynamic limiting, ensuring the subwoofer performs optimally and reliably even at high output levels. The cabinet is constructed from rugged, void-free plywood with a durable textured finish and features ergonomic handles for easy transport, along with integrated rigging points for flexible deployment options, including ground-stacking, flying, or pole-mounting with compatible full-range enclosures.

The SB15m excels at providing powerful, controlled low-end extension that enhances the overall impact and clarity of a sound system. Its combination of high-output capability, integrated processing, and robust construction makes it a reliable and efficient solution for sound professionals seeking to add substantial bass reinforcement without the complexity of separate amplifiers and processors. Whether used as a single unit for smaller events or in arrays for larger productions, the L-Acoustics SB15m delivers the performance and reliability expected from a premium audio brand.