WLA-218BX There is no going back!

  • 2 x 18″ LF drivers
  • 4.0″ voice coils
  • Inverted Stack Gradient Array (iSGA) configuration
  • 18 mm Baltic Birch plywood construction
  • 2000 W AES (Continuous)
  • 4000 W Programme
  • 8000 W Peak
  • Impedance 8 Ohms
  • A powerful sub with cardioid functionality
  • 148 dB Max SPL @ 1 meter

Low frequencies usually go everywhere.

Alot of output energy can end up in places where the audience do not benefit from it. Having great low frequencies behind the stage is a waste of power and energy.

It’s for this reason the new WLA-218BX can be easily deployed in an Inverted Stack Gradient Array (iSGA) configuration.

WLA-218BX uses the acclaimed Reason-X 18” subwoofer drivers. With 4.0” voice coils and an impedance boost around 35 Hz, these efficient drivers simply deliver extreme bass.

And, when used in the iSGA configuration, they deliver that bass directly into the face of the audience.

WLA-218BX

2000 watts
AES (RMS)

2 x 18″ LF drivers

4.0″ voice coils

Inverted Stack Gradient Array (iSGA) configuration

18 mm Baltic Birch plywood construction

2000 W AES (Continuous)

4000 W Programme

8000 W Peak

Impedance 8 Ohms

A powerful sub with cardioid functionality

148 dB Max SPL @ 1 meter

SERIOUS DRIVERS

∮102.6 diameter voice coil.
Thats OVER 4.0″ but we say 4.0″ because of number rounding
Double-layer spider bonding.
Updated glue is used. This bonding can eliminate brittle cracking and reduces harmonic distortion.
112 g Membrane.
The WLA-218BX driver has a heavier membrane which can withstand more power without breaking.
31 mm voice coil cavity.
A larger internal cavity for the coil windings allows WLA-218BX to have lower response by 5 Hz.
6.2 ohm impedance.
The impedance peak is higher in the Reason-X driver at 35 Hz. This results in superior low end strength.

Birch PLywood

WLA-218BX is constructed of 18 mm thick Baltic birch plywood.

Not only does this create a solid and durable cabinet, but it also contributes to the overall sound and character.

WLA-218BX is also covered in our most durable and hard wearing Rhino Rock paint finish. This ensures that it will always look as good as the day you unboxed it.

SOlid as a rock

As with all Wharfedale Pro PA systems, years of expertise is behind a loudspeaker built to last, with thanks to our high standards of quality control.

The WLA-218BX is coated in the highest quality Rhino Rock paint finish – a chip resistant texture with a professional, discrete aesthetic whilst being prepared for the rigours of life on the road.

routed logo

WLA-218BX features a routed Wharfedale Pro logo.

It is a logo to be proud of. A logo that lets your audience know that the sound of your even will be of the highest possible quality.

AMPS & DSP

A Versadrive DSP (such as SC-48 FIR) or a DP-N series amplifier with internal FIR filtering is highly recommended to get the most from the system.  Phase, EQ and filtering should be applied and this way, the physics of the system can be truly optimised – delivering that sub-bass ……directly into the faces of the audience!

Wheely practical

For easy transportation, WLA-218BX is compatible with Wharfedale Pro optional caster wheels.

Inverted Stack Gradient Array (iSGA)

When deployed in an Inverted Stack Gradient Array (iSGA) configuration, WLA-218BX really moves some air !


A front grille speakON compatible connector means that the Gradient Array can easily be built with other subwoofers.  

Working together, the phase will combine resulting in more directional low-end frequencies which focus on the audience, rather than backstage.

Up close

SPECIFICATIONS

Model NameWLA-218BX
System TypePassive
ConfigurationDual 18″ Subwoofer
Frequency Response (+/-3 dB)30-800 Hz
Frequency Range (-10 dB)25-800 Hz
Sensitivity 2.83V/1M109 dB
Calculated Maximum SPL @1 Meter148 dB
System Rated Impedance4 Ω
Low Frequency Transducer
Size2 x 470 mm / 18″
Voice Coil Size102 mm / 4.0″
LF Magnet MaterialFerrite
LF Frame MaterialAluminium
Rated Impedance2 x 8 Ω
LF Power re:AES2-20122 x 1000 W
Nominal Impedance4 Ω
Power
System AES (RMS) Power2000 watts
System Programme Power4000 watts
System Peak Power8000 watts
Crossover Frequency
Input Connectors3 x speakON NL4 (speakON compatible)  (2 rear, 1 front)
RiggingNo
Pole MountNo
Handles4 on Sides
Enclosure
Cabinet TypeRectangle
Enclosure Material and finish18 mm plywood
Colour Optionsblack paint
Grille Material & Finishsteel
Dimensions – Unpacked (mm / inches):
Height560 mm / 22.0″
Width Front1065 mm / 41.9″
Width Rear1065 mm / 41.9″
Depth756 mm / 29.8″
Dimensions – Packed (mm / inches):
Height638 mm / 25.1″
Width Front1138 mm / 44.8″
Width Rear1138 mm / 44.8″
Depth829 mm / 32.6″
Weight
Net Weight75.0 kg / 165 lbs
Gross Weight87.7 kg / 192.9 lbs

Downloads

WLA-218BX Media library

(External link to OneDrive library)