The L-Acoustics SB28 is a high-performance dual 18-inch subwoofer engineered for powerful, musical low-frequency reinforcement in large-format PA systems. Its optimised bass-reflex enclosure and carefully managed airflow deliver tight, articulate bass with excellent transient response and generous headroom. Seamless integration with L-Acoustics amplified controllers ensures consistent voicing, system protection and straightforward deployment, with presets supporting standard and cardioid configurations for improved directivity and stage rejection.
Built for touring reliability, the SB28 features a rugged enclosure with practical stacking and rigging options, enabling fast, repeatable setups from compact ground stacks to large-scale arrays. Thermal management and airflow design help maintain stable output during demanding shows and sustained programme material, ensuring authoritative, controlled low end for live music, dance events and cinematic content. Used as standalone units or in scalable arrays, the SB28 underpins full-range systems with precision and impact.
An excellent choice for touring PA, festivals, arenas, theatres and premium installations where extended low-frequency extension, consistent coverage and dependable day-to-day operation are essential.
Includes
- L-Acoustics SB28 Subwoofer – Dual 18-inch Touring Bass
STAGE14.2.100.650

