Martin Audio

Martin Audio SX115

Direct Radiating

Compact 15" Subwoofer

The SX115 is a versatile, passive subwoofer with an operating range of 45-100Hz + 3dB. Featuring a powerful, long excursion 15” (380mm)/4” (100mm) voice coil driver with a water-resistant cone and triple roll surround, it delivers dynamic low frequency performance from a very compact enclosure. Four reflex ports increase LF output efficiency and have a large frontal area to reduce turbulent air noise at high levels.

SX115

Technical Specifications

TYPE
Direct radiating subwoofer
CROSSOVER FREQUENCY
100Hz
FREQUENCY RESPONSE 4π
45Hz - 100Hz ± 3dB, -10dB @ 36Hz
DRIVERS
LF: 15” with 4” Voice coil, Ferrite Motor
SENSITIVITY
(2.83V 1m half space) 100dB
NOMINAL IMPEDANCE
8 Ohms
RATED POWER
AES 800W, PEAK 3200W
MAXIMUM SPL (SYSTEM)
129 dB continuous, 135 dB peak, 141 dB peak with crest factor 4
DISPERSION
Omni-Directional or cardioid when paired
CONNECTORS
2 x NL4
PIN CONNECTIONS (INPUT)
1+/1–
PIN CONNECTIONS (LINK)
1+/1− (linked from input 1+/1−), 2+/2− (linked from input 2+/2−)
FITTINGS
Two skids on base, with mating channels on top, M20 top-mounted thread plate for pole mounting, Two pocket handles 24 x M10 mounting points, 16 x M8 inserts for optional castors
DIMENSIONS
(W) 500mm, (H) 451mm, (D) 678mm (806mm with Casters) (W) 19.69ins, (H) 17.76ins, (D) 26.69ins (31.73ins with Casters)
WEIGHT
36.5kg (80.5lbs)
ACCESSORIES
Pack of four wheels (WHEELKIT), Weatherised connector cover (WRKIT), Wind-up telescopic pole (ASF20071), M10 eye bolt (HTKCT06)

The durable plywood enclosure is finished in hardwearing textured paint and incorporates threaded inserts for eyebolt suspension of a single enclosure, as well as safety points. Inserts are also provided for the attachment of side rigging strips to assemble a flown installed array of up to four enclosures.

Ergonomic pocket handles assist handling and installation, and the driver is protected by a coated steel grille with an acoustically transparent fabric backing. An M20 threaded plate on the top surface facilitates pole-mounting of Martin Audio full-range enclosures.

The SX115 can be used as a stand-alone subwoofer or stacked using locating skids and mating channels at the base and top of each enclosure. Cardioid operation can be achieved by arranging the SX115 in forward and rear-facing pairs, with each enclosure powered individually in conjunction with dedicated DSP presets.

The SX115 is available in black and as standard is suppled without castors which are available as an accessory pack.

The optional connector cover makes the SX115 weather resistant and suitable for outdoor usage.

  • Compact, direct radiating subwoofer
  • Long excursion 15” (380mm)/4” (100mm) voice coil driver with water-resistant cone
  • High output capability
  • Plywood enclosure with flying inserts
  • Large ports for reduced air noise


TYPEDirect radiating subwoofer
CROSSOVER FREQUENCY100Hz
FREQUENCY RESPONSE 4π45Hz - 100Hz ± 3dB, -10dB @ 36Hz
DRIVERSLF: 15” with 4” Voice coil, Ferrite Motor
SENSITIVITY(2.83V 1m half space) 100dB
NOMINAL IMPEDANCE8 Ohms
RATED POWERAES 800W, PEAK 3200W
MAXIMUM SPL (SYSTEM)129 dB continuous, 135 dB peak, 141 dB peak with crest factor 4
DISPERSIONOmni-Directional or cardioid when paired
CONNECTORS2 x NL4
PIN CONNECTIONS (INPUT)1+/1–
PIN CONNECTIONS (LINK)1+/1− (linked from input 1+/1−), 2+/2− (linked from input 2+/2−)
FITTINGSTwo skids on base, with mating channels on top, M20 top-mounted thread plate for pole mounting, Two pocket handles 24 x M10 mounting points, 16 x M8 inserts for optional castors
DIMENSIONS(W) 500mm, (H) 451mm, (D) 678mm (806mm with Casters) (W) 19.69ins, (H) 17.76ins, (D) 26.69ins (31.73ins with Casters)
WEIGHT36.5kg (80.5lbs)
ACCESSORIESPack of four wheels (WHEELKIT), Weatherised connector cover (WRKIT), Wind-up telescopic pole (ASF20071), M10 eye bolt (HTKCT06)

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.

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