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Martin Audio - SXC118 showing speaker conesMartin Audio - SXC118 showing speaker cones

Martin Audio – SXC118

Martin Audio

18″ Passive Cardioid Portable Subwoofer

Designed for touring sound and installations, the SXC118 is a compact, high performance cardioid subwoofer. It features an 18” (460mm) forward facing driver and a 14” (356mm) rear facing driver, each driven independently by separate amplifier channels and DSP.

Features

  • Compact, cardioid subwoofer
  • Front facing 18” (460mm)/4” (100mm) voice coil driver
  • Rear facing 14” (356mm)/3.5” (88mm) voice coil driver
  • Cardioid dispersion pattern
  • 28dB rear rejection at 75Hz
  • High output capability
  • Tour-grade plywood enclosure with flying inserts
SKU: SXC118 Categories: , , ,

Description

Each driver has its own chamber with optimised bass reflex porting. This arrangement produces a cardioid dispersion pattern which maximises the front radiation and reduces unwanted radiation behind the subwoofer.

The recommended iK42 amplifier optimises the DSP parameters for front and rear drivers to maximise the rear rejection — from 21dB at 43Hz to 28dB at 75Hz. This keeps low frequencies away from stages, turntables and walls as well as reducing reverberant energy in the room, greatly improving the system’s low frequency response accuracy and impact.

In front of the enclosure, the output from the two drivers is additive, giving an extra 2dB of output when compared with a conventional 1 x 18” subwoofer.

The enclosure is constructed from plywood and finished with a hard-wearing textured paint. It is equipped with four grab handles and foam-backed perforated steel grilles protect the front and rear drivers. It can be used individually, stacked or flown individually by means of threaded flying inserts

The SXC118 is an ideal partner for WPM and WPS line arrays or our range of point source loudspeakers where low frequency pattern control is required. Interlocking skids prevent movement when stacked and a threaded plate in the top surface facilitates pole- mounting of up to 4 WPM enclosures or a singular point source enclosure. The product is supplied as standard without castors but they can be purchased as an accessory.

By adding the input board cover accessory, the subwoofer is fully weather resistant and suitable for permanent outdoor usage.

Applications

  • Live sound reinforcement
  • Fixed installations including live event venues and nightclubs
  • Theatre sound
  • Corporate AV events
  • Acoustically-challenging rooms
  • Outdoor restaurant, bar and hotel entertainment areas
  • Concourses and Theme Parks

Additional information

Type

Compact, cardioid subwoofer

Frequency Response

43Hz – 150Hz ±3dB, -10dB @ 34Hz

Measured on-axis in half (2pi) space at 2 metres, then referred to 1 metre.

Drivers

18” (460mm)/4” (100mm) voice coil, long excursion, ferrite magnet, waterproof cone

14” (356mm)/3.5” (88mm) voice coil, long excursion, neodymium magnet, waterproof cone

Rated Power

18”: 1000W AES, 4000W peak
14”: 800W AES, 3200W peak

AES Standard ANSI S4.26-1984.

Sensitivity

104dB

Measured in half (2pi) space at 2 metres with 2.83V input, using band limited pink noise, then referred to 1 metre.

Maximum SPL

140dB peak

Calculated at 1 metre.

Nominal Impedance

18”: 8Ω
14”: 8Ω

Dispersion (-6DB)

Cardioid

Enclosure

Multi-laminate birch and poplar ply

Finish

Textured black paint

Protective Grille

Black HEX perforated steel

Connectors

2 x NL4

Pin Connections (Input)

18”: +1, -1; 14”: +2, -2

Fittings

Two skids on base, with mating channels on top
M20 top-mounted thread plate for pole mounting
Two bar handles on each side
Four fittings for optional transit cover
16 x M10 Mounting Points
16 x M8 inserts for optional castors
Two bar handles on each side

Dimensions (Including Skids)

(W) 650mm x (H) 603mm x (D) 812mm (940mm incl castors)
(W) 25.6in x (H) 23.7in x (D) 32in (37in incl castors)

Weight

69kg (152lbs)
73kg (161lbs) incl castors

Downloads

Data Sheet Download
User Guide Download