Martin Audio SX118, 18 Inch Passive Direct Radiating Subwoofer

The Martin Audio SX118, 18 Inch Passive Direct Radiating Subwoofer 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.

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

Product Specification:  

Type: Compact, direct radiating subwoofer

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

Dimensions: (W) 24in x (H) 20.36in x (D) 25.26in

Weight: 96 lbs