Using a dual chamber cabinet, the WLA-218SUB delivers huge bass in a versatile configuration.
2 x 18” Wharfedale Pro LF transducers with massive 4” voice coils produce up to 138 dB SPL – while their cast frame aluminium baskets reduce any risk of mechanical distortion.
The WLA-218SUB cabinet is constructed of 18mm birch plywood and all internal bracing is designed to avoid vibration or physical shape distortion during prolonged high volume use.
This massive subwoofer is designed for ground placement.
WLA-218SUB

4.0″ voice coils
18 mm Baltic Birch plywood construction
1600 W Continuous (Parallel)
3200 W Programme (Parallel)
6400 W Peak (Parallel)
138 dB Max SPL @ 1 meter
Dual Chamber
The two 18” Wharfedale Pro LF transducers with massive 4” voice coils work together to deliver up to 138 dB Max SPL.
Using cast frame aluminium baskets, any mechanical distortion is dramatically reduced ensuring smooth, accurate and honest reproduction.


Birch PLywood
WLA-218SUB 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-218SUB is also covered in our most durable and hard wearing black paint finish. This ensures that it will always look as good as the day you unboxed it.
Parallel / discrete
Run the WLA-218SUB in Parallel or Discrete mode.
In Parallel mode both drivers are connected in parallel, resulting in a 4Ω subwoofer.
In Discrete mode both drivers operate individually and can respond to separate source material. In this configuration each driver is 8Ω.

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-218SUB is compatible with Wharfedale Pro optional caster wheels.

Up close

Durable black
paint finish
Full steel
front grille
Custom 18"
Wharfedale Pro
drivers with
4.0" voice coils
4 Rubberised
carry handles
8 rubber feet
Dual chamber
design
SPECIFICATIONS
Model Name | WLA-218SUB |
---|---|
System Type | Passive |
Configuration | 2 x 18” Dual Chamber Sub |
Frequency Response (+/-3 dB) | 30 Hz – 1.5 KHz |
Frequency Range (-10 dB) | 30 Hz – 1.5 KHz |
Sensitivity (2.83 v / 1 m) | 100 dB |
Calculated Maximum SPL @1 m | 138 dB |
System Rated Impedance | Parallel 4 Ω, Discrete 8 Ω x 2 |
Low Frequency Transducer | |
Size | 2 x 470 mm / 18” |
Voice Coil Size | 102 mm / 4” |
Rated Impedance | 2 x 8 Ω |
LF Power (re:AES2-2012) | 2 x 800 W |
Power | |
System Continuous Power | 1600 W Parallel / 800 W Discrete |
System Programme Power | 3200 W Parallel /1600 W Discrete |
System Peak Power | 6400 W Parallel /3200 W Discrete |
Crossover frequency | |
Input Connector | 2 x speakON compatible |
Hardware | |
Enclosure | |
Enclosure Material | 18 mm Plywood |
Finish | Black paint |
Grille Material & Finish | Steel |
Dimensions – (Unpacked) | |
Height Front | 541 mm / 21.3″ |
Height Rear | 541 mm / 21.3″ |
Width | 1041 mm / 41” |
Depth | 650 mm / 25.6” |
Dimensions – (Packed) | |
Height | 626 mm / 25.6″ |
Width Front | 1126 mm / 44.3″ |
Width Rear | 1126 mm / 44.3″ |
Depth | 722 mm / 28.4″ |
Weight | |
Net Weight (kg / lbs) | 78.9 kg / 173.5 lbs |
Gross Weight (kg / lbs) | 86.0 kg / 189.6 lbs |