Description
The Wharfedale Pro WLA-218BA is a high-performance active subwoofer designed to deliver powerful, deep bass for large-scale sound reinforcement systems. Featuring dual 18-inch high-efficiency drivers and built-in Class D amplification, the WLA-218BA offers robust and consistent low-frequency output with remarkable clarity and punch. This subwoofer is specifically engineered to complement the WLA-28X line array, enhancing the overall performance of the sound system by providing the essential low-end extension needed for large venues and outdoor events. Built with a durable plywood enclosure and advanced components, the WLA-218BA ensures reliability in demanding environments. With its integrated amplification, the WLA-218BA is easy to deploy and provides seamless integration into any professional audio setup, making it an excellent choice for touring, concerts, and fixed installations.
Internal DSP with Fir
8 x DSP Presets – built in – including FIR. Easy to get great results – fast. For the subwoofers (WLA-28SUBA and WLA-218BA) the AUDIENCE or STAGE presets can be used in an Inverted Stack Gradient array configuration.
About the Clarity
The new neo-HF compression driver delivers additional clarity and performance with enhanced definition. It is custom made by Wharfedale Pro and is coupled to a 100° x 10° waveguide.
Dual 8"
At the heart of the WLA-28X are 2 x 8″ custom Wharfedale Pro LF drivers. These feature 2.0″ voice coils to ensure high efficiency and high-power handling. These custom designed transducers are what give a WLA-28X system its incredible sound and power handling capacity.
Optional Fly Frames
Arrays can be assembled using only WLA-28X line array elements or with WLA-15B / WLA-28SUB Subwoofers at the top of the array. The WLA-28X Common Fly frame supports up to 450 kg. That's 12 x WLA-28X elements and a WLA-28SUB.
Just Imagine
Imagine your dream system! You can configure a WLA series rig to suit your needs! To help your design and system preparations, you can download some recommended system diagrams. These range from small to large and use a selection of our different amplifier ranges.
Optimised Ground Stacking
WLA-28X rigging doubles up as an optimised ground stacking system, using the WLA-15B or WLA-28SUB subwoofer as a base. Arrays of WLA-28X line array elements can be aimed downwards by as much as 10° to cover audience areas close to a stage, as well as upward by as much as 10° in order to better cover distant balcony seating areas.
Wheely Useful
With the WLA-28 Dolly Frame, manoeuvrability is now an added feature. The steel frame acts both as a common fly frame for flying situations AND as a dolly for ground stacking. 3 outriggers add stability to a ground stack allowing up to a maximum of 1 x WLA-28SUB plus 4 x WLA-28X’s to be configured. Adding extra versatility to any WLA-28X system.
Product Specifications:
System Type: Active 2×18 Subwoofer
Frequency Response (+/-3 dB): 30 Hz-100 Hz
Frequency Range (-10 dB): 25 Hz-150 Hz
Loudspeaker Sensitivity @ 1 W / 1 m): 109 dB
Maximum SPL (peak) (@1 m): 148 dB
Signal Processing: DSP based,8 presets resident in Input Module
Amplifiers:
Amplifier Design: Class D
Power Rating: 4000 W Peak / 2000 W Continuous
Power on Protection: Power switch on/off mute
Thermal Protection: Amplifier Shut Down. Auto Reset
Low Line Voltage Shut Down: 80% Nominal Line Voltage
Driver Protection: Independent L/ H Limiters and DC
DC and Short Protection: Yes
Limiter Indicator: Red LED
Signal Indicator: Green LED
Power/Active Indicator: White LED
Find Function Indicator: Blue LED
Input Sensitivity: +4 dBu
Maximum Input Level: +18 dBu
Input Impedance:
Balanced: 10 KΩ
AC Power details - Power Supply: High Efficiency Switching Mode Power Supply
Connectors:
Input Connector: XLR 1/ 4〞Combo jack
Link Connector: Balanced XLR pin Connector
UPDATE: USB Type B
NETWORK (RS485): RJ45
AC Power Options: AC 100–240 V~,50/60 HZ
AC Input Connector: powerCON
AC Loop Through Connector: powerCON
Enclosure Material and finish: 18 mm Plywood
Colour Options: Black Rhino Paint
Grille Material & Finish: 1.5 Steel
Product Weight: 78.0 Kg / 171.6 lbs.
Product Dimensions: 30 x 42 x 22
Shipping Weight: 92.04 Kg / 202.4 lbs.
Shipping Dimensions: 32 x 45 x 25
Financing Options
Hassle-Free Financing Available
Get the gear you need now and pay over time. Perfect for working DJs, artists, and sound pros who need pro-grade speakers, lighting, and cases to stay competitive.
- Shop Pay & Afterpay for instant financing right at checkout
- Acima, Synchrony, Progressive & Snap lease-to-own and financing options
- Fast approvals so you buy today and pay monthly
Military & First Responder Discounts
We're proud to support those who serve. Active-duty military, veterans, and first responders qualify for a special discount on your gear. See our Military Discount details here and how to redeem.










