Wharfedale Pro WLA-121SUB | 21in - 141dB | High Output Flyable Subwoofer

Passive Flyable Subwoofer

Wharfedale Pro WLA-121SUB is a 21-inch hybrid curvature array subwoofer designed to deliver powerful and controlled low-frequency performance for large-scale touring and installation systems. Built for flexibility, it supports both flown and ground-stacked deployment alongside WLA-1 full-range elements.

Wharfedale Pro WLA-121SUB Competitive Differences

• 21-inch Beyma driver with 4-inch voice coil for high output and efficiency
• 1600W continuous power handling with up to 6400W peak capacity
• Maximum SPL of 141dB for extreme low-frequency performance
• Flyable design with integrated rigging for flexible deployment
• Bass-reflex enclosure for deep, controlled sub-bass response

Wharfedale Pro WLA-121SUB Description

The Wharfedale Pro WLA-121SUB is engineered to provide the low-frequency foundation for high-performance WLA-1 systems. Featuring a 21-inch Beyma driver with a 4-inch Quattro voice coil, it delivers exceptional output while maintaining stability and thermal efficiency under demanding conditions.

With 1600W continuous power handling and the ability to reach up to 141dB SPL, the WLA-121SUB produces deep, impactful bass that remains tight and articulate even at high volume levels. Its bass-reflex design enhances low-frequency extension, making it suitable for large venues, festivals, and installed sound systems.

The enclosure is constructed from durable birch plywood and finished in black Tough-Tone coating, with a powder-coated steel grille for protection. Integrated rigging and multiple handles support both flown and ground-stacked configurations, while the M20 pole mount adds additional deployment flexibility.

WLA-121SUB Features

• 21-inch passive subwoofer for WLA-1 system
• Bass-reflex enclosure design
• 1600W continuous, 3200W program, 6400W peak power handling
• 141dB maximum SPL (half space)
• Beyma LF driver with 4-inch voice coil
• Integrated rigging with 3 mounting points
• Supports flying and ground-stacked deployment
• M20 pole mount for system expansion
• Birch plywood cabinet with durable finish

WLA-121SUB Specifications

• Active or Passive: Passive
• System Type: Subwoofer
• Configuration: Bass-reflex
• System Continuous Power: 1600W
• System Program Power: 3200W
• System Peak Power: 6400W
• Max SPL: 141dB (half space)
• Frequency Response: 25 Hz - 100 Hz (+/-3 dB)
• Frequency Range: 18 Hz - 125 Hz (-10 dB)
• Driver Brand: Beyma
• LF Driver Size: 21 in
• LF Magnet Material: Ferrite
• LF Frame Material: Aluminum
• LF Voice Coil Size: 4 in
• Input Connectors: 2 x 4-pole speaker connectors
• Cabinet Type: Rectangle
• Enclosure Material: Birch plywood
• Grille: Powder-coated perforated steel
• Finish: Black Tough-Tone
• Handles: 2 side (4 pcs) + 2 (top/bottom)
• Deployment: Flying, ground
• Pole Mount: M20
• Rigging: Integrated 3-point rigging
• Sensitivity: 103dB (2.83V / 1m)
• System Rated Impedance: 4 ohms
• Recommended HPF: 20 Hz, BW 18 dB/oct
• Dimensions: 32.3 x 22.3 x 29.9 in (820 x 566 x 760 mm)
• Weight: 155.4 lb (70.5 kg)

What's In The Box

• Wharfedale Pro WLA-121SUB subwoofer
• User manual