L-Acoustics

SB18

Name: SB18
Brand: L-Acoustics

Compact subwoofer

A single 18-inch subwoofer reaching 32 Hz, built for rooms that cannot take a larger box. Used where a ballroom has music on the programme but the load-in, the service lift or the floor plan rules out a full-size sub.

Enquire About the SB18

We will confirm the setup and availability for your event.

What It Is

750 × 553 × 707 mm and 52 kg, a little over half the weight of the SB28. Four-point captive rigging is built in, so it flies with the main array instead of sitting on the floor.

What It Does

DesignPassive compact subwoofer
Maximum SPL138 dB
LoadingBass reflex with L-Vents
LF driver1 × 18-inch cone

Best For

Corporate conferences with video
Gala dinners
Compact live stages
Launch events
KARA deployments

Specifications

Input and link: 1 × 4-pole speakON input; 1 × 4-pole speakON link
Nominal impedance: 8 Ω
Compatible amplification: LA4X / LA8 / LA12X
Handles and stops: 4 handles; 8 protective corner stops
Dimensions (W × H × D): 750 × 553 × 707 mm
Net weight: 52 kg

Acoustic
Low-frequency limit	32 Hz−10 dB; [SB18_100] preset
Maximum SPL	138 dBPeak at 1 m half-space; crest-factor-4 pink noise; [SB18_100]
Configuration	Standard or cardioid arrangements
Loading	Bass reflex with L-Vents
Connections
Input and link	1 × 4-pole speakON input; 1 × 4-pole speakON link
Drivers
LF driver	1 × 18-inch cone
Electrical
Nominal impedance	8 Ω
Handling
Handles and stops	4 handles; 8 protective corner stops
Physical
Dimensions (W × H × D)	750 × 553 × 707 mm
Net weight	52 kg
Cabinet	Baltic beech and birch plywood
Front	Coated steel grille and acoustically neutral 3D fabric
Rigging material	Corrosion-protected steel
Ingress rating	IP55
Rigging
Integrated rigging	Flush-fitting four-point captive system
Pole socket	35 mm
System
Design	Passive compact subwoofer
Compatible amplification	LA4X / LA8 / LA12X