4,000W of Stunning
Low-end Response

The S-TL218SS is the rugged, outdoor version of our popular TL218SS Super Sub design. It complements our outdoor line arrays, delivering 25 Hz to 150 Hz sub-bass in the most demanding environments, such as football and soccer fields, baseball stadiums, and amusement parks. Directivity can be omni or cardioid, depending on placement.

Using dual 18-inch, 4,000W low-frequency transducers with 4.5-inch voice coils, the S-TL218SS provides minimal distortion and smooth, extended low-frequency response. It is available as a passive system or active, with our PDA1000 amplifier: 1,000W x 2, with digital (100) program processing and a Dante™ option.

Withstand the Elements

The heavily reinforced enclosure uses 24 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 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
  • Two 18-inch LF transducers with 4.5-inch voice coils
  • 4,000W power handling
  • 143 dB SPL max @1W/1 meter
  • 25 Hz to 150 Hz response (-3 dB)
  • Omni or cardioid directivity
  • Perforated, powder-coated, stainless steel grille with high transmission ratio
  • 12-foot, 4-conductor, Aquaseal water block cable with gland nuts; each module is wired separately, requiring two (2) power inputs

Images

Technical Specifications

System Performance

Frequency Response (-3dB) * 25 Hz – 150 Hz
Frequency Range (-10dB) 18 Hz – 150 Hz
Recommended High-Pass 20 Hz – with minimum 24 dB / octave (4th order) Butterworth slope
Nominal directivity (-6dB) Omni or cardioid
Recommended Crossover Frequency 90 Hz (acoustic, active, external DSP)
RMS handling capacity ** LF: 4000 W
Maximum SPL @ 1 Meter *** 143 dB ([WorxAudio] preset)

Transducers

Components LF: 18” (457.2mm) x 2
Nominal Impedance LF = 4 ohms, Self Powered

Physical

Enclosure Baltic birch plywood, engineered plastics, and aluminum frame
Finish Two-part spray catalyzed Polyurea coating on plywood
Grill 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 .375” Flying points (x17)
Dimensions 22.5” H x 48” W x 30.0” D (571.5 mm x 1,219.2 mm x 762 mm)
Net Weight 285 lb. (129.27 kg)
Shipping Weight 295 lb. (133.80 kg) - approximate with carton
Product Versions S-TL218SS
Digital Power Amp PXD-2500
2500W (x1) LF
Digital (100) program processing, LCD readout
XLR M/F Isolated I/O
AC powerCON I/O

Footnotes

* 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.