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Martin Audio CSX118B Subwoofer (CSX118B-F) with a maximum SPL capability of 138dB peak at 1 meter

1000-Watt, passive 18" unit, integrated fly points, water resistant cone

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  • Martin Audio CSX118B Subwoofer
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Martin Audio's CSX118 is a compact, high performance subwoofer that extends the low frequency operating range of the combined system to 35Hz and provides exceptional low frequency impact. An ideal partner for the CDD10, CDD12 and CDD15, it features a long-excursion 1" (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 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 high-density MDF and its perforated steel grille is pre-curved to withstand physical damage.


  • Compact, direct-radiator subwoofer
  • 1 x 18" (460mm) driver with 4" (100mm) voice coil
  • Water resistant cone
  • Large ports for reduced air noise
  • Perforated steel grille
  • Black or white standard color options
  • Integrated flying points

Specifications for the Martin Audio CSX118B Subwoofer

{ "Type" : "Compact, direct radiating subwoofer", "Frequency Response" : "40 Hz - 150 Hz ±3 dB, -10 dB @ 35 Hz", "Driver" : "18" (460 mm)/4" (100 mm) voice coil, long excursion, ferrite magnet, waterproof cone", "Rated Power" : "1000 W AES, 4000 W peak", "Recommended Amplifier" : "MA5.2K", "Sensitivity" : "102 dB", "Maximum SPL" : "132 dB continuous, 138 dB peak (half space)", "Nominal Impedance" : "8 Ohms", "Dispersion (-6 dB)" : "Omnidirectional", "Crossover" : "80 Hz - 120 Hz active", "Enclosure" : "160 liter, high-density MDF", "Finish" : "Black textured paint", "Protective Grille" : "Black perforated steel", "Connectors" : "Low-profile 20 A push-lock", "Pin Connections" : "Left to right = Input +, Input -, Link -, Link +", "Dimensions" : "26.1" W x 20.9" H x 25.2" D (662 x 530 x 640 mm)", "Weight" : "93 lbs (42 kg) " }

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