Line Array Series

Line Array Series

The Beta Three® line array series is a series of outstanding rental and touring solutions for live entertainments, sports events, speech reinforcement, and other venues where a line array system is desired. The line array series contains various models consisting of active and passive models for horizontal and vertical deployment complemented by reliable flying equipment. Selected models are also available in the weatherproof version, making them ideally suited for any outdoor application requiring a line array system with state-of-the-art sound performance and optimal scalability.

TLB-218F - Dual 18" Subwoofer Weatherproof Speaker
TLB-218F - Dual 18" Subwoofer Weatherproof Speaker
TLB-218F - Dual 18" Subwoofer Weatherproof Speaker
TLB-218F - Dual 18" Subwoofer Weatherproof Speaker


Dual 18" Subwoofer Weatherproof Speaker

β3 TLB-218F is a subwoofer adoping new structure and new painting technology. It integrates dual 18" /4ohm woofer with 100mm voice coil. The rated power is 1000W, peak power is 4000W. Symmetrical magnet circuit design reduce the impar HD effectively and enhance the LF sound quality.

Cabinet is made of 18mm birch plywood with advanced environmental protection Polyurethane-based painting which is very rigid. The cabinet strength reach to 4500N. Q235 grille is coated by powder to provide strong ultraWeatherability, can be used outdoors for 5 years. The backside foam of grille can prevent the rain.

T-Line Weatherproof Line Array Speakers were designed in accordance with IP54 Standard, mainly be applicable for outdoor touring performance.

Magnetic circuit of LF is optimized through the finite element analysis to achieve the ultra-low distortion and maximum clarity under the high SPL. Overheated protection for drivers, perfect and reliable circuit protection.

TLB-218F adopts multifunctional structure design and Russian birch, weatherproof polyurethane painting provides super strong weather resistance.



  • Dual 18" Subwoofer.

  • Long term continuous power: 2000W.

  • Frequency response: 35Hz-500Hz (-3dB).

  • Sensitivity: 102dB,Max SPL: 127dB/133dB(PEAK).


Acoustical specifications
Frequency Response(-3db):
Max SPL @ 1m:
2 x 18" Subwoofer
Input/Output section
Input Connectors:
2 x NL4 @ 1+ 2-
Sensitivity (1W @ 1m):
Power section
Total Power:
1000W(RMS); 2000W(MUSIC); 4000W(PEAK);
Nominal Impedance (Ohm):
Physical specifications
Cabinet/Case Material:
Birch plywood
8 x Iron handles
Weather resistant polyurethane finish, black powder coating for grille.
Dimension (W x D x H):
985 x 895 x 692mm / (38.8 x 35.2 x 27.2in)
Package Dimensions (W x D x H):
1095 x 1010 x 800mm / (43.1 x 39.8 x 31.5in)
Net Weight:
97 kg / 213.8 lb
Gross Weight:
101 kg / 222.7 lb

TLB-218F Application

    TLB-218F Installation

      TLB-218F Parts

        TLB-218F Collocation



            TLB-218Fβ3 TLB-218F Datasheet 1.0TLB-218F  200KB 2022-07-05 12:22:34
            β3_TLB-218F_PA_Chinese_Manualβ3_TLB-218F_PA_Chinese_Manual 1β3_TLB-218F_PA_Chinese_Manual  3019.39KB 2018-07-12 02:25:39
            β3_TLB-218F_PA_English_Manualβ3_TLB-218F_PA_English_Manual 1β3_TLB-218F_PA_English_Manual  2792.81KB 2018-07-12 02:25:39