L-Acoustics SB28 Subs

The L-Acoustics SB28 is a high-powered subwoofer engineered for deep, impactful bass reproduction with remarkable clarity and control. Featuring two 18-inch direct-radiating drivers in a bass-reflex tuned enclosure, the SB28 delivers a frequency response extending down to 25 Hz, ensuring a tight, punchy low-end ideal for live sound reinforcement. The enclosure is constructed from premium Baltic birch plywood, offering durability for both touring and fixed installations. The front grille is treated with an anti-corrosion coating, protecting the drivers from environmental elements. This subwoofer is specifically designed to complement L-Acoustics line array systems such as the V-DOSC, KUDO, and K1, seamlessly integrating into large-scale sound setups to provide balanced, distortion-free bass.

One of the defining features of the SB28 is its ability to be deployed in both standard and cardioid configurations. When used in a cardioid setup, it minimizes unwanted stage noise and provides a cleaner, more focused low-end response. This is particularly useful for live performances where managing on-stage sound levels is critical. The SB28’s powerful low-frequency response is optimized using L-Acoustics’ proprietary LA8 amplified controllers, which provide precise DSP settings, optimized presets, and protection against overheating or overdriving. These controllers ensure consistent performance while allowing fine-tuning for different venues and configurations. Additionally, the SB28’s integrated rigging system allows for both flown and ground-stacked deployment, making it a highly flexible option for various applications.

Whether in concert touring, stadium events, or high-end permanent installations, the SB28 is widely recognized for its deep, powerful, and controlled bass output. Its precision-tuned enclosure and advanced power management system enable superior performance at high SPL levels without distortion. For sound engineers and audio professionals, the SB28 is a trusted choice that delivers industry-leading bass performance with reliability and ease of deployment. When paired with L-Acoustics’ line array systems and LA8 amplification, it forms a cohesive and high-fidelity sound system capable of handling the most demanding live sound environments.