Extreme high SPL extended bass loudspeaker system
- Extended Low Frequency
- High Level Output
- High Power Handling
- Low Power Compression
- Removable Caster Board
- Tour grade enclosure and mechanics
- A perforated powder coated steel grill with a high transmission ratio
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Frequency Response (-3dB)*
25 Hz – 150 Hz
Frequency Range (-10dB)
18 Hz – 150 Hz
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)
LF: 18” (457.2mm) x 2
LF = 4 ohms, Self Powered
Baltic birch plywood, engineered plastics, and aluminum frame
Two-part spray catalyzed Polyurea coating on plywood
14-gauge (1.0 mm) perforated steel, powder-coated finish, black
Indoor use only
Two (2) parallel-wired NL4 Neutrik® Speakon® connectors
Power Amp Connectors
Neutrik® powerCON (AC) XLR M/F (In/Out)
Internal bracket w/ threaded .375” Flying points (x24)
22.5” H x 48” W x 30.0” D (571.5 mm x 1,219.2 mm x 762 mm)
285 lb. (129.27 kg)
295 lb. (133.80 kg) - approximate with carton
TL218i, TL218i-P, TL218T, TL218T-P
Digital Power Amp
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.
The TrueLine TL.218SS is designed to satisfy the need for an extreme high SPL sub bass loudspeaker system. Components have been selected solely for their performance.
The TrueLine TL.218SS utilizes two direct radiating 18 2000W cone drivers in a tuned enclosure, which provides maximum output with minimal distortion and smooth extended low frequency response. The tour tested 21 ply Baltic Birch highly braced enclosure and 24mm thick baffle board construction provide unsurpassed rigidity and strength. The enclosure is built to truck pack dimensions for efficient transportation of multiple units, and should be arrayed to increase performance in large or outdoor venues.
The TrueLine TL.218SS is designed to be used for low frequency sections in multi-way speaker systems, or as a sub bass section in any sound system requiring extend low frequency response and the highest quality audio reproduction. The TrueLine TL.218SS comes with a multi-layered catalyzed Polyurea finish and is offered with a variety of color options.
The TrueLine TL.218SS delivers the transparent sonic quality and easy portability necessary for the demands of professional audio today.