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Martin Audio SXP118 (SXP118B) Compact, Direct Radiating Powered Subwoofer

2000W peak output - Black Durable Polyurea Coating Finish - 135dB peak SPL

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  • Martin Audio SXP118
  • 5-year Limited Warranty

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Fully weather resistant and suitable for permanent outdoor usage

Martin Audio's SXP118 (MAU-SXP118B) Compact, Direct Radiating Powered Subwoofer extends the low frequency operating range of a CDD-LIVE! full-range system to 40Hz — providing exceptional low frequency impact and increasing headroom. It 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. With a maximum SPL capability of 135dB peak at 1 metre, the SXP118 is the ideal subwoofer for theatre and portable live sound applications, as well as premium installations that require the maximum output from a compact enclosure.


  • 1 X 18” (460mm) Driver With 4” (100mm) Voice Coil
  • Onboard Class D Amplification And DSP
  • Dante™ Digital Audio Networking
  • Global Mains Operation With Power Factor Correction
  • 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 SXP118

{ "Acoustics" : { "TYPE" : " Compact, direct radiating powered subwoofer ", "FREQUENCY RESPONSE (Measured on-axis on ground plane (2π space) at 2 metres, then referred to 1 metre)" : "47Hz – 150Hz ±3dB, -10dB @ 41Hz", "DRIVER" : " 18” (460mm)/4” (100mm) voice coil, long excursion, ferrite magnet, waterproof cone ", "INPUT SENSITIVITY" : " -20dBu for 100dB SPL (CDD12/15 pre-set) -13dBu for 100dB SPL (CDD8 pre-set)", "MAXIMUM SPL (Measured in half-space at 1 metre with a tone burst signal.)" : " 132dB continuous / 135dB peak ", "DISPERSION" : " Omnidirectional / or Cardioid (paired) ", "CROSSOVER" : " Active Presets for CDD Live 8, 12 & 15 mono-pole or cardioid (paired) " }, "Module Audio input" : { "CONNECTORS" : " Female XLR input, male XLR link output, Dante Audio Neutrik® Ethercon ", "ANALOGUE INPUT IMPEDANCE" : " 20 kΩ balanced to ground ", "MAXIMUM ANALOGUE INPUT LEVEL" : " 24.6 Vpp (+21dBu), over voltage protected ", "Internal Processing" : " Multi-channel DSP, programmable via TCP/IP using VU-Net software PEQ/shelving filters Up to 48dB/Oct LPF Up to 200ms input delay Pre-set selection via rear panel switch " }, "Network" : { "CONNECTORS" : " 2 x Neutrik® Ethercon ", "PROTOCOL" : "TCP/IP and UDP/IP" }, "Amplifier Module" : { "TYPE" : " 2 channel switch-mode, class D, Bridged Tied ", "PEAK OUTPUT POWER" : " 2000W total ", "AVERAGE EFFICIENCY" : " 89% ", "COOLING" : " External fan ", "MAXIMUM AMBIENT TEMPERATURE" : " 40°C (104°F) for full output " }, "Power Supply" : { "TYPE" : " Switch mode, fixed frequency with PFC ", "AC INPUT OPERATING RANGE" : " 85 – 265V ∼ AC, 50 - 60Hz ", "POWER FACTOR" : " > 0.98 ", "NOMINAL POWER CONSUMPTION" : " 125W ", " MAINS CONNECTOR " : " Neutrik® Powercon True1 " }, "Mechanical" : { "ENCLOSURE" : " Extensively braced multi-laminate plywood. ", "FINISH" : " Durable Polyurea Coating ", "PROTECTIVE GRILLE" : " Black perforated Zintec ", "FITTINGS" : " Two skids on base, with mating channels on top 16 x M8 inserts for optional castors M20 top-mounted thread plate for pole mounting 16 x M10 mounting points 2x Bar handles, 1 on each side 4x fittings for optional transit cover ", "IP RATING" : " IP24 factory option available ", "DIMENSIONS" : " (W) 600mm x (H) 507mm x (D) 632mm (760mm including castors) (W) 23.62in x (H) 20in x (D) 24.86in (29.90in including castors) ", "WEIGHT" : " 46.5kg (103lbs) w/o castors 50kg (110lbs) with castors " } }

Research Materials for Martin Audio SXP118 (MAU-SXP118B)

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SXP118 (MAU-SXP118B) Specifications

SXP118 (MAU-SXP118B) Brochure

SX Series Brochure

SX Series User Guide

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