The L-Acoustics SB28 is a high-output dual 18-inch passive subwoofer engineered for deep, controlled low-frequency reinforcement in touring, rental and large-scale install environments. Its pair of weather-resistant 18-inch transducers deliver impressive impact and headroom, supporting modern PA systems with authoritative sub-bass extension below 25 Hz and peak SPLs up to 140 dB. Built to L-Acoustics’ renowned standards, the SB28 combines robust construction with precise performance, making it a dependable choice for arenas, outdoor festivals and demanding live productions. This certified pre-owned unit has been fully tested and inspected by our technicians for reliable deployment. Supplied with a dolly and protective cover, it is straightforward to transport and protect on the road. Seamless integration with L-Acoustics arrays and system amplification ensures predictable results, while the enclosure’s footprint and rigging options suit a wide range of configurations, from ground-stacked cardioid arrays to large-format main systems. Ideal for professionals who need impactful, musical low end that stays tight and controlled across large audience areas.
Includes
- L-Acoustics SB28 subwoofer
- Dolly
- Protective cover
STAGE21.2.100.350