The L-Acoustics SB15m is an ultra-compact, passive 15-inch subwoofer designed for rental applications where space-efficient low-frequency extension and flexible directivity are required. The enclosure combines premium Baltic beech and birch plywood construction with laminar-vent tuning to deliver controlled, high-efficiency LF performance.

Key Features

• High-excursion 15" transducer for deep, controlled bass output.
• Dual directivity modes, standard or cardioid, achievable by combining multiple elements and using dedicated presets.
• Robust construction: coated steel grille with acoustically transparent fabric, ergonomic handles, and a 35 mm pole-mount socket for straightforward ground-stacking or pole use.
• Rigging and integration: two coupling bars for mechanical combination with same-family loudspeakers, plus available dedicated rigging accessories for flown or stacked configurations.
• Performance figures: nominal impedance 8 Ω; usable bandwidth 40–120 Hz (-10 dB), 46–102 Hz (-6 dB), 49–85 Hz (-3 dB); calculated RMS power handling 608 W; maximum 137 dB peak at 1 m (half-space, pink noise, CF 4).
• Controlled deployment: passive design requiring an associated proprietary amplified controller and matched preset for drive and protection.

Use Cases

• Compact live events and DJ rigs where deep bass is needed without large enclosures.
• Corporate events and presentations requiring discreet low-frequency reinforcement.
• Multi-element configurations for cardioid or omnidirectional sub arrays in rental installs to manage spill and venue acoustics.
• Touring packages that prioritize quick setup, rugged transport, and consistent performance across venues.

Included with your rental

• SB15m enclosure with grille and protective fabric fitted.
• Two coupling bars for mechanical integration with other family elements when requested.
• Access to the required proprietary amplified controller and dedicated preset for correct amplification and protection, provided as part of the system rental.
• Optional rigging accessories available for flown or stacked configurations; please request during booking.

Notes for renters

This is a passive subwoofer and must be used with the specified amplified controller and preset supplied with the rental. For cardioid or other directivity patterns, multiple elements and correct preseting are required. Ask your rental coordinator for recommended system layouts and transport/rigging considerations for your event.

We strive to provide impeccably maintained rental equipment for the entertainment industry that is prepped and ready for your event. Our experienced staff stands ready to help you with your lighting, video, rigging & production needs. Rental inventory availability may vary based on date and 4Wall location. In cases where your preferred item is unavailable, we'll do our best to suggest a suitable replacement.