Basket 0
Martin Audio SX118 18" Subwoofer

Martin Audio SX118 18" Subwoofer


Martin Audio

  • £1,499.00
Usually shipped within 2-3 working days

The SX118 is a compact, high performance subwoofer that extends the low frequency operating range of the system to 47Hz and provides exceptional low frequency output for such a compact enclosure.

SX118 features a long-excursion 18” (460mm)/4” (100 mm) voice coil driver with a water-resistant cone and triple roll surround in a compact reflex enclosure.

The design of the 18” driver maximises output while minimising power compression and distortion, and the four reflex ports have a large frontal area to reduce turbulent air noise at very high levels. 

Its enclosure is constructed from multi-laminate birch ply, finished with a durable polyurea coating and equipped with a Zintec grille, twin grab handles, skids, flying inserts for installation and a threaded pole socket for pole-mounting point source loudspeakers or up to 4 WPM enclosures as a simple plug-and-play system.


  • Compact, direct radiating subwoofer
  • 18” (460mm)/4” (100mm) voice coil, long excursion, ferrite magnet, waterproof cone
  • High output capability
  • Tour-grade plywood enclosure with flying inserts


              • TYPE: Compact, direct radiating subwoofer
              • FREQUENCY RESPONSE: 47Hz – 150Hz ±3dB, -10dB @ 41Hz
              • DRIVER: 18” (460mm)/4” (100mm) voice coil, long excursion, ferrite magnet, waterproof cone
              • RATED POWER: 1000W AES, 4000W peak
              • SENSITIVITY: 102dB
              • MAXIMUM SPL: 138dB peak
              • NOMINAL IMPEDANCE: 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): LF: +1, -1 Link through: +2, -2
              • PINS CONNECTIONS (LINK): LF: +1, -1 Link through: +2, -2
              • FITTINGS:
                • Two skids on base, with mating channels on top
                • M20 top-mounted thread plate for pole mounting
                • 16 x M10 mounting points
                • 2 x bar handles, 1 on each side
                • 4 x fittings for optional transit cover
                • 16 x M8 inserts for optional castors
              • DIMENSIONS (INCL SKIDS):
                • (W) 600mm x (H) 509mm x (D) 632mm
                • (760mm including castors)
                • (W) 24in x (H) 20.36in x (D) 25.26in
                • (30.38in including castors)
              • WEIGHT: 43.5kg (96lbs) w/o castors 47kg (104lbs) with castors

                Manufacturer: Martin Audio

                We Also Recommend