L-Acoustics SB28

The L-Acoustics SB28 is a high-performance subwoofer designed to deliver deep, impactful low-frequency reinforcement for professional audio applications. Part of L-Acoustics’ acclaimed line of sound reinforcement solutions, the SB28 is engineered to complement the company’s line array and loudspeaker systems, making it a versatile choice for concerts, live events, theaters, and other high-profile audio setups where powerful bass is essential.

The SB28 features a dual 18-inch high-power transducer configuration, which provides substantial low-frequency output and exceptional performance in demanding environments. Each driver is housed in a robust, high-strength enclosure designed to maximize efficiency and minimize distortion. The dual-driver setup allows the SB28 to produce deep, punchy bass with a high maximum SPL (Sound Pressure Level), making it well-suited for applications that require both high impact and extended low-end response.

One of the key features of the SB28 is its advanced cardioid configuration, which enhances control over low-frequency dispersion. The subwoofer’s design incorporates a unique arrangement of drivers and phase-cancellation technology that directs the majority of the low-frequency output towards the audience while minimizing unwanted rearward sound. This cardioid pattern helps reduce low-frequency spill on stage and into adjacent areas, improving the overall clarity and effectiveness of the sound system.

The SB28 is designed with robust construction and reliability in mind. The subwoofer’s enclosure is built from high-density plywood and finished with a durable, weather-resistant coating, ensuring it can withstand the rigors of touring and heavy use. The subwoofer is also equipped with an integrated rigging system, which allows for flexible deployment options, including ground-stacking or flown configurations. The inclusion of handles and wheels further enhances the portability and ease of setup, making it suitable for a wide range of applications.

The SB28 is compatible with L-Acoustics’ LA8 and LA12X amplified controllers, which provide advanced processing and tuning capabilities to optimize the performance of the subwoofer within the overall sound system. These controllers enable precise adjustment of crossover settings, EQ, and phase alignment, ensuring seamless integration with other L-Acoustics loudspeakers and achieving the best possible sound quality.