Technical Specifications

System Performance

Frequency Response (-3 dB) * 25 Hz – 150 Hz
Frequency Range (-10 dB) 18 Hz – 150 Hz
Recommended High-Pass 20 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: 4000 W
Maximum SPL @ 1 Meter *** 143 dB ([WorxAudio] preset)


Components LF: 18” (457.2 mm) x 2
Nominal Impedance LF = 4 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 Indoor use only
Connectors Two (2) parallel-wired NL4 Neutrik® Speakon® connectors
Power Amp Connectors Neutrik® powerCON (AC) XLR M/F (In/Out)
Suspension/Mounting Internal bracket w/ threaded 0.375” Flying points (x17)
Dimensions 22.5” H x 48” W x 30” 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 TL218i, TL218i-P, TL218T, TL218T-P
Digital Power Amp PXD-2500
2500W (x1) LF
Digital (100) program processing, LCD readout
XLR M/F Isolated I/O
AC powerCON I/O


* 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.