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Martin Audio SXP218 (SXP218B) 2 X 18″ powered subwoofer

2000W AES, 8000W peak - Black Durable Polyurea Coating Finish - 144dB Max SPL

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What's in the box:

  • SX218
  • 5-year Limited Warranty

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Sound Reinforcement For Small And Medium-Size Venues

Martin Audio's SX218 (MAU-SXP218B) Dual-Driver, Direct Radiating Subwoofer delivers very high output levels and superb transient performance with minimal distortion. 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 and 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.


  • 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

Martin Audio was founded in 1971 by engineering maestro Dave Martin. Renowned for integrity in design, technical excellence and the longevity of its products, Martin Audio takes system creation into a further dimension. Their mission is for every member of the audience to enjoy an exceptional sonic experience faithfully reproducing the artist's performance.

Specifications for the Martin Audio SXP218

{ "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", "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 top24 x M10 mounting points4 x bar handles, 2 on each side4 x fittings for optional transit coverM20 Pole mount insert16 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 castors102kg (225lbs) with castors" }

Research Materials for SXP218 (MAU-SXP218B)

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SXP218 (MAU-SXP218B) Specifications

SXP218 (MAU-SXP218B) Drawing

SX Series Brochure

SX Series User Guide

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