The L-Acoustics SB18 subwoofer is a tour-ready, high-output low-frequency unit available for rental on the west coast. It is designed to deliver tight, high-impact bass with consistent clarity, suitable for live sound, DJ setups, and rental sound packages where reliable low-end performance is required.

Key Features

• 18" high-excursion driver for deep, powerful low frequencies.
• Amplification compatible with LA4X, LA8, or LA12X, providing flexible power options for different system sizes.
• L-VENTS acoustic loading for defined, controlled bass response in a bass-reflex enclosure.
• Low frequency limit (-10 dB): 32 Hz, supporting substantial sub-bass extension.
• Maximum SPL: 138 dB, suitable for demanding live environments.
• Nominal directivity available in standard or cardioid configurations to help control stage bleed and audience coverage.
• Rugged construction and integral rigging for fast, reliable setup and touring durability.
• Ingress protection: IP55, providing weather resistance for outdoor use.

Specifications

• Transducers: 1 × 18" cone driver
• Nominal impedance: 8 Ω
• Connectors: IN: 1 × 4-point speakON, LINK: 1 × 4-point speakON
• Weight (net): 52 kg / 115 lb

Included with your rental

• One SB18 subwoofer (unit only; amplification and cabling available upon request)
• Basic setup guidance and recommended amplifier pairing (LA4X, LA8, LA12X)
• Optional rigging accessories and flight-case handling on request

Use Cases

This subwoofer is suitable for live concerts, club nights, corporate events, and rental packages where controlled, high-output bass is required. Choose standard configuration for broader coverage, or cardioid setup to reduce stage noise and focus energy toward the audience.

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.