Great Sound for All Seasons

The S-X118S is the rugged outdoor version of our popular X118S Super Sub design. It complements our outdoor line arrays, delivering 35 Hz to 150 Hz sub-bass in the most demanding environments, such as football and soccer fields, stadiums, and amusement parks. Directivity can be omni or cardioid, depending on placement.

An 18-inch, 700W low-frequency transducer with 4-inch voice coil provides minimal distortion and smooth, extended low-frequency response. It is available as a passive system.

Deep Bass Output That Can Withstand the Elements

The heavily reinforced S-X118S enclosure uses 18 mm Baltic birch cross-laminated wood over an aluminum frame and is finished with a polyurea coating, with UV exterior outdoor protection and a fiberglass seal coating inside and out. The stainless steel fasteners will maintain their appearance, while a stainless steel, perforated grille, backed with a vinyl mesh, completes each system.

Key features:

  • Specifically designed to withstand temperature extremes and moisture
  • Fiberglass seal coating and polyurea inside and out, with UV exterior outdoor protection
  • 18-inch LF transducer with 4-inch voice coil
  • 700W power handling
  • 136 dB SPL max @1W/1 meter
  • 35 Hz to 150 Hz response (-3 dB)
  • Omni or cardioid directivity
  • Perforated, powder-coated, stainless steel grille with high transmission ratio
  • 12-foot, 14 AWG, 300V Aquaseal water block cable with gland nuts
  • Internal bracket w/threaded 0.375-inch flying points (​x16)

Technical Specifications

System Performance

Frequency Response (-3 dB) * 35 Hz – 150 Hz
Frequency Range (-10 dB) 30 Hz – 250 Hz
Recommended High-Pass 30 Hz – with minimum 24 dB / octave (4th order) Butterworth slope
Nominal directivity (-6 dB) Omni or cardioid
Recommended Crossover Frequency 90 Hz (acoustic, active, external DSP)
RMS handling capacity ** LF: 700 W
Maximum SPL @ 1 Meter *** 136 dB ([WorxAudio] preset)


Components LF: 18” (457.2 mm) x 1
Nominal Impedance LF = 8 ohms, Self Powered


Enclosure Baltic birch plywood, engineered plastics, and aluminum frame
Finish Two-part spray catalyzed Polyurea coating on plywood
Grille 14-gauge (1.0 mm) perforated stainless steel, powder-coated finish, black
Environmental Outdoor Use
Connectors Weather-resistant gland nut w/ 16 ft cable
Suspension/Mounting Internal bracket w/ threaded 0.375” flying points (x16)
Dimensions 22.5” H x 24.5” W x 22.5” D (571.5 mm x 622.29 mm x 571.5 mm)
Net Weight 98 lb. (44.45 kg)
Shipping Weight 110 lb. (49.89 kg) - approximate with carton
Product Versions S-X118S


* Frequency response and range measured on-axis with anechoic environment.
** Power handling tested using pink noise filtered to meet IEC 268-5, 6 dB crest factor, 100 hours, with recommended EQ.
*** Peak level measured at 1m under free field conditions using 10 dB crest factor pink noise with specified ([WorxAudio] preset) and corresponding EQ settings.