Martin Audio SX218
Direct Radiating
Dual 18" Subwoofer
Description
With an operating range of 35Hz-150Hz ± 3dB, it houses dual 18” long-excursion (460mm)/4” (100mm) voice coil drivers with water-resistant cones and triple roll surrounds. Each driver is rated to handle 1000 watts AES and has a magnet structure which is suspension engineered for maximum linear excursion.
The enclosure is constructed from multi-laminate birch ply and finished with a durable polyurea coating. Eight reflex ports provide a large frontal area to reduce turbulent air noise, and a perforated steel grille protects the drivers from damage. SX218 features a M20 pole mount insert for added versatility in deployment.
The product is supplied as standard without cabinet wheels, but they are available as an accessory.
By adding the input board cover accessory, SX218 is fully weather resistant and suitable for permanent outdoor usage.
SX218 Features
- Dual-driver, direct radiating subwoofer
- 2 x 18” (460mm)/4” (100mm) voice coil, long excursion, ferrite magnet, waterproof cone
- Very high output capability
- Tour-grade plywood enclosure with flying inserts
Resources & Downloads
Data sheets, manuals and resources for the SX218
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Contact Our TeamQuick Specs
- TYPE
- Dual-driver, direct radiating subwoofer
- FREQUENCY RESPONSE
- 35Hz – 150Hz ±3dB, -10dB @ 30Hz
- DRIVER
- 2 x 18” (460mm)/4” (100mm) voice coil, long excursion, ferrite magnet, waterproof cone
- RATED POWER
- 2000W AES, 8000W peak
- SYSTEM AMPLIFIER
- iK42
Technical Specifications
With an operating range of 35Hz-150Hz ± 3dB, it houses dual 18” long-excursion (460mm)/4” (100mm) voice coil drivers with water-resistant cones and triple roll surrounds. Each driver is rated to handle 1000 watts AES and has a magnet structure which is suspension engineered for maximum linear excursion.
The enclosure is constructed from multi-laminate birch ply and finished with a durable polyurea coating. Eight reflex ports provide a large frontal area to reduce turbulent air noise, and a perforated steel grille protects the drivers from damage. SX218 features a M20 pole mount insert for added versatility in deployment.
The product is supplied as standard without cabinet wheels, but they are available as an accessory.
By adding the input board cover accessory, SX218 is fully weather resistant and suitable for permanent outdoor usage.
- Dual-driver, direct radiating subwoofer
- 2 x 18” (460mm)/4” (100mm) voice coil, long excursion, ferrite magnet, waterproof cone
- Very high output capability
- Tour-grade plywood enclosure with flying inserts
| TYPE | Dual-driver, direct radiating subwoofer |
| FREQUENCY RESPONSE | 35Hz – 150Hz ±3dB, -10dB @ 30Hz |
| DRIVER | 2 x 18” (460mm)/4” (100mm) voice coil, long excursion, ferrite magnet, waterproof cone |
| RATED POWER | 2000W AES, 8000W peak |
| SYSTEM AMPLIFIER | iK42 |
| SENSITIVITY | 105dB |
| MAXIMUM SPL | 144dB |
| NOMINAL IMPEDANCE | 2 x 8Ω |
| DISPERSION (-6dB) | Omnidirectional/or Cardioid (paired) |
| ENCLOSURE | Multi-laminate birch/poplar ply |
| FINISH | Durable Polyurea Coating |
| PROTECTIVE GRILLE | Black perforated Zintec |
| CONNECTORS | 2 x NL4 type |
| PIN CONNECTIONS (INPUT) | LF1: 1+, 1- LF2: 2+, 2- |
| PINS CONNECTIONS (LINK) | LF1: 1+, 1- LF2: 2+, 2- |
| FITTINGS | Two skids on base, with mating channels on top, 24 x M10 mounting points, 4 x bar handles, 2 on each side, 4 x fittings for optional transit cover, M20 Pole mount insert, 16 x M8 inserts for optional castors |
| DIMENSIONS (INCL SKIDS) | (W) 1093mm x (H) 537mm x (D) 792mm (920mm including castors), (W) 43in x (H) 21.1in x (D) 31.2in (36.2in including castors) |
| WEIGHT | 98.5kg (217lbs) w/o castors, 102kg (225lbs) with castors |
| ACCESSORIES | 16 x M8 inserts for optional castors, Input Board Cover, Transit Cove |
About Penguin Media Solutions
Penguin Media Solutions is a professional audio, video, and lighting design, installation, and maintenance company based in Brighton, UK. As an authorised Martin Audio dealer, we provide high-performance AV systems for commercial venues, hospitality, and event spaces across Brighton, London, and South-East England.
