Wharfedale Pro WLA-218BX – Dual 18″ Passive Subwoofer

Description

The WLA-218BX is a next-generation, high-output subwoofer built for modern large-scale sound systems.

Designed with Inverted Stack Gradient Array (iSGA) functionality, it offers cardioid sub-bass performance for focused energy on the audience.

Powered by dual 18″ LF drivers with oversized 4.0″+ voice coils, the WLA-218BX can deliver a thunderous 148 dB Max SPL. Rugged 18 mm Baltic birch plywood construction with Tough-Tone™ polyurea paint ensures durability in the most demanding touring environments.

Features

• Dual 18″ LF drivers with ∮102.6 mm (4.0"+) voice coils

• Inverted Stack Gradient Array (iSGA) cardioid configuration

• 148 dB Max SPL @ 1 meter

• 30 Hz – 800 Hz frequency response

• 18 mm Baltic birch plywood cabinet with Tough-Tone™ paint finish

• Heavy-duty aluminium LF driver frames with ferrite magnets

• Reinforced steel grille with routed Wharfedale Pro logo

• Front and rear speakON inputs for flexible cardioid setup

• Optional caster wheels for easy transport

• Recommended DSP/Amps: Versadrive SC-48 FIR or DP-N Series (FIR capable)

Specifications

System

• Type: Passive

• Configuration: Dual 18″ Subwoofer

• Nominal Impedance: 4 Ω

• Frequency Response (±3 dB): 30 Hz – 800 Hz

• Frequency Range (-10 dB): 25 Hz – 800 Hz

• Sensitivity (2.83V / 1m): 109 dB

• Calculated Max SPL: 148 dB @ 1 m

Drivers

• LF Driver Size: 2 x 470 mm / 18″

• Voice Coil Size: 102 mm / 4.0″

• Impedance (per driver): 8 Ω

• Magnet Material: Ferrite

• Frame Material: Aluminium

Power Handling

• AES RMS Power: 2000 W

• Program Power: 4000 W

• Peak Power: 8000 W

Connectivity

• Connectors: 3 x speakON NL4 (2 rear, 1 front)

Cabinet & Hardware

• Material: 18 mm Baltic birch plywood

• Finish: Black polyurea-based Tough-Tone™ paint

• Grille: Steel with routed Wharfedale Pro logo

• Cabinet Type: Rectangular

• Rigging / Pole Mount: Not available

• Handles: 4 (2 per side)

• Optional Accessories: Caster wheels

Dimensions & Weight

• Unpacked Dimensions:

  • Height: 560 mm 

  • Width: 1065 mm 

  • Depth: 756 mm 

Dimensions

 638 × 1138 × 829 mm 

Weight

86 kg

Disclaimer

Please note that certain products are supplied directly from international or country-specific suppliers. While we strive to keep our stock levels accurate and updated, there may be instances where an item becomes unavailable due to supplier delays or stock inconsistencies. In such cases, we will promptly contact you to offer suitable alternatives or issue a full refund. We appreciate your understanding and patience, and we're committed to ensuring a smooth and satisfactory experience.

Product images, descriptions, and other related content are provided for illustrative purposes only. Actual products may vary slightly in appearance, specifications, or packaging depending on supplier availability and region-specific variations. These differences do not affect the core functionality or quality of the item. We aim to ensure all product details are as accurate as possible, but we reserve the right to make necessary adjustments without prior notice.

Contact us on Online@hgmw.co.za or +27 13 752 7725