High power subwoofer

High power, self-powered (Class D switch mode power supply) front loaded, subwoofer cabinet with two 18″ (4″ voice coil) low frequency neodymium transducers.
DSP controlled with 3600W amplification with PFC (Power Factor Correction), 139db SPL.


The LX-218S is part of the Lynx Line Array Series and is the ideal solution for application where high precision Line Array is required. This subwoofer cabinet is the ideal combination where low frequency reinforcement is needed for the LX-V8 or LX-F6.

High power, front loaded, sub-bass cabinet with two 18″ (4” voice coil) low frequency neodymium transducers with nomex cones and suspension in direct radiation configuration. The transducers have ventilated voice coil and magnet circuit for improved heat dissipation. The system is powered with a total of 3600W of class D amplification and each cabinet has a DSP integrated. Other features include temperature sensor, fan speed control, inclinometer, Ethernet options and more.

The rugged, light weight LX-218S offers an exceptional power to size ratio, high damping factor and low distortion with a perfectly flat response from 35Hz to 125Hz. Different options frequency response available by preset.


Perfectly suited for:

→  Outdoor events
→  Houses of worship
→  Auditoriums
→  Large stadiums / arenas
→  Interior live PA
→  Theatres

Technical Data


2 x 18″ (4″ voice coil) neodymium, custom Nomex cone
Frequency Range 30Hz – 200Hz
Frequency Response
35Hz – 125Hz (± 3dB)
35Hz – 200Hz (± 3dB) selectable by preset
Max SPL 136 dB / 139 dB peak
Bass reflex, Direct radiation
Coverage Angle 360º single unit
3600 W Class D with switching power supply
2 x 1800W
Processing 56 bit Lynx dspb-22
Temperature sensor – Fan Speed
Control Connections Ethernet (OCS) optional / USB (DSP programming)
AC Power
85V – 270V. 50/60 Hz with PFC
AC Connections 16A Neutrik Powercon with link output
Polyurea coating – white colour optional (RAL)
Material 18 mm premium birch plywood
532 x 1080 x 700 mm (H x W x D)
Weight 72 Kg (158 lbs)

More features

Hardware for LX-218S



The LX-218S cabinet is constructed from 13-ply premium birch plywood (18mm thickness) and finished with polyurea coating

Internal LX-218

Internal design

The internal structure of the LX-218S is heavily braced for greater longevity and all parts are assembled on metal inserts with metric screws. The amplification modules & DSP are housed in a separate chamber to the drivers avoiding excessive heat & vibration, thus delivering greater efficiency and reliability.


Rear panel

The powder coated steel rear panel contains all connections and houses the LX-218S amplification modules and DSP, is easily accessible and housed separately from the drivers for increased reliability and efficiency



The LX-218S has a heavy duty, powder coated front grille with special acoustic rear fabric to protect the transducers against dust and dirt.



Two ergonomic, die cast handles with firm internal grips are located on each side of the LX-218S enclosure to facilitate transport, positioning and loading of the cabinets.



The LX-218S can be flown if chosen and comes supplied with fittings at each side so that flying plates can be added if required.

Transport LX-318C


The LX-218S is easy to transport thanks to its dedicated Dolly. The cabinets slip in to place on the dolly and a protective nylon cover is also available to protect the enclosure and keep it clean on tour.








Two 18″ (4” voice coil) low frequency neodymium transducers with nomex cones and suspension in direct radiation configuration.

The transducers have ventilated voice coil and magnet circuit for improved heat dissipation.

Transducers with neodymium magnet groups, nomex cones and suspension prolonging the life of the components.

Interleaved sandwich voice coil, weather protected membrane for outdoor use, ventilated voice coil and magnet circuit for improved heat dissipation, double spider for improved control and linearity.

Accessories for LX-218S


Ball pin with thread for LX-V8, LX-212S and LX-218S cabinets
Transport dolly for up to to 3 LX-218S
Connection system to link the LX-218S with line array cabinets LX-V12 or LX-V8
4 piece adaptator kit for flying LX-218S
Flying frame for the LX-218S
Rain cover for the back panel of the LX-218S
Nylon protection cover for 2 LX-218S cabinets
Nylon protection cover for 3 LX-218S cabinets


Amplification & DSP

Bi-amplified Class D with switching power supply. Includes two 1500W power modules, one for each 18” transducer.

The amplification far exceeds the transducers needs thus resulting in high output, high damping factor and extremely low levels of distortion.

Other products from this series


LX-V12 product2 x 12” and 4 x 6.5” transducers with 2 x 1.4” drivers, 143 dB SPL


LX-318C product

3 x 18” transducers (2 Frontal + 1 Rear), 141 dB SPL 

Delisted product

2 x 8″ transducers with 2 x 1″ drivers, 134 dB SPL

Delisted product

2 x 6” transducers with a 5”x1” AMT, 127 dB SPL

Delisted product

2 x 12” transducers, offering 139 dB SPL