Martin Audio SX118-W – 18" Passive Direct-Radiating Subwoofer (White)

Product Overview

The Martin Audio SX118-W is the white finish variant of the SX118, a compact, high-performance, single-driver direct-radiating passive subwoofer that extends the low-frequency operating range of full-range sound systems to 47Hz. The white finish supports colour-matched permanent installation in light-toned architectural environments including houses of worship, theatres, and concert facilities with light-coloured interiors. Tour-grade plywood construction and integrated flying inserts support both ground-stacked and rigged overhead deployment in permanent installs.

Product Description

The SX118-W delivers the same single 18" direct-radiating passive subwoofer performance as the SX118 in a white finish for permanent install environments where black hardware is visually incompatible with the architectural context. The 18" (460mm) driver features a 4" (100mm) voice coil, long-excursion design, ferrite magnet structure, and a waterproof cone, providing high power handling and LF extension to 47Hz for sub-bass programme content in live music, theatrical, and high-impact corporate applications. The updated driver specification (from January 2019) improves on the earlier SX118 iteration. Tour-grade plywood enclosure construction ensures the physical durability required for permanent installation at a level of quality appropriate for professional sound reinforcement environments. The white finish is specified by system designers for architecturally sensitive install contexts including houses of worship with light interior finishes, concert halls and theatres, and hotel ballrooms where hardware colour must coordinate with the interior scheme. Integrated flying inserts support rigged overhead deployment in addition to ground-stacking, maximising placement flexibility for permanent system designers.

Key Features

• White Finish — Colour-matched integration for light-coloured permanent install environments.
• 18" Long-Excursion Driver — 460mm driver with 4" voice coil extends LF operating range to 47Hz for sub-bass programme content.
• Ferrite Magnet Structure — High-efficiency magnet assembly supports sustained high-power operation.
• Waterproof Cone — Extends deployment to moderately exposed environments.
• Tour-Grade Plywood Enclosure — High-durability construction appropriate for permanent professional installation.
• Integrated Flying Inserts — Supports both ground-stacked and rigged overhead placement.

Typical Applications

• House of worship permanent LF reinforcement systems with light-coloured architectural interiors
• Concert halls and theatres with white or light-finish interior requirements
• Hotel ballrooms and multi-purpose performance rooms
• Auditoriums and all-hands rooms with aesthetic hardware requirements
• Sports stadium permanent AV installations with finish specifications
• Corporate broadcast studios and government facilities

Technical Specifications

Frequently Asked Questions

What is the difference between the SX118 and SX118-W?

The SX118-W is acoustically identical to the SX118. The only difference is the white finish for colour-matched permanent installation in light-coloured architectural environments.

Is the SX118-W a passive or powered subwoofer?

The SX118-W is a passive subwoofer requiring an external amplifier and DSP processor for crossover management.

Can the SX118-W be flown?

Yes. Integrated flying inserts support rigged overhead deployment in addition to ground-stacking.

Has the SX118-W been updated from earlier versions?

Yes. The SX118 driver specification was updated in January 2019, and the SX118-W shares this updated driver.

Is the SX118-W suitable for outdoor use?

The waterproof driver cone extends deployment to moderately exposed environments. For full outdoor weatherisation, consult dedicated weatherised products.

Where can I view the full Martin Audio SX range?

Visit creationnetworks.net/collections/martin-audio for the complete SX Series lineup.