L-Acoustics | SB18 IIiW - Subwoofer White (install)

L-Acoustics | SB18 IIiW - Subwoofer White (install)

The L-Acoustics SB18 IIiW is the white version of the SB18 IIi, a high-power 18 inch installation subwoofer that delivers up to 138 dB SPL with extension down to 32 Hz. It offers the same deep, controlled low end as the standard SB18 IIi, in a white finish that blends into bright interiors and architectural spaces.

Powerful bass that fits the architecture

In venues where the subwoofer is visible, a dark enclosure can stand out against light walls, ceilings and finishes. The L-Acoustics SB18 IIiW solves this with a white finish, so you get serious low-frequency performance without compromising the look of the room. It is a good fit for projects where design and sound quality are equally important.

Deep and controlled, down to 32 Hz

The 18 inch high-excursion driver and dual bass-reflex enclosure are designed for maximum output and bandwidth with low distortion. With a peak SPL of 138 dB at 1 m and usable response down to 32 Hz (-10 dB), the SB18 IIiW gives your system the weight and impact it needs, whether it reinforces speech, film soundtracks or live music.

Made for permanent installation

The SB18 IIiW has a 4-point terminal block with push-in connection for quick and tidy permanent wiring. Rigging is done with external rigging kits, so you can stack or fly the subwoofer to suit your installation. Combine two or more units with the matching presets to create standard or cardioid arrays and keep low frequencies away from areas where they are not wanted.

Solid build quality

The cabinet is built from premium-grade Baltic birch plywood and the driver is protected by a coated steel grille. It is designed for long-term, reliable use in fixed installations.

Typical applications

• Hotels, restaurants, lounges and bars
• Retail, showrooms and museums
• Theaters, auditoriums and conference centers
• Houses of worship and educational spaces
• Any installation where a visible subwoofer needs to match a light interior

Pair it with

The SB18 IIiW complements L-Acoustics coaxial enclosures and modular line sources, and is driven by an L-Acoustics amplified controller such as the LA2Xi (bridge mode), LA4X, LA8 or LA12X. For smaller systems, take a look at the SB15MW, the white version of the compact SB15M subwoofer.

Want to know more?

Not sure whether the white SB18 IIiW or the standard SB18 IIi fits your project? Contact us and we'll be happy to advise on the best setup.

Acoustical

• Low Frequency Limit (-10 dB): 32 Hz
• Maximum SPL: 138 dB with LA2Xi (bridge mode) / LA4X / LA8 / LA12X; 133 dB with LA2Xi
• Nominal Directivity (-6 dB): Standard or cardioid
• Transducers: 1 × 18" cone driver
• Acoustical Load: Dual bass-reflex
• Nominal Impedance: 8 Ω

Physical

• Connectors: 1 × 4-point terminal block with push-in connection
• Rigging and Handling: External rigging kits
• Dimensions (H × W × D): 701 × 540 × 728 mm
• Weight (Net): 48 kg
• Cabinet: Premium-grade Baltic birch plywood
• Front: Coated steel grille, acoustically neutral 3D fabric
• Finish: Dark grey brown Pantone 426 C; pure white RAL 9010; custom RAL code on special order
• IP Rating: IP55