WHARFEDALE PRO WLA 121 SUB A
WHARFEDALE PRO WLA 121 SUB A
WHARFEDALE PRO WLA 121 SUB A
WHARFEDALE PRO WLA 121 SUB A
WHARFEDALE PRO WLA 121 SUB A

WHARFEDALE PRO WLA 121 SUB A

WLA-121SUBA is a 21″ active subwoofer from our WLA-1A System, built to deliver extreme low-frequency power with precision and control for large-scale touring and installation environments.

Powered by internal Class-D amplification and DSP, and, at its core, a 21″ Beyma driver with a 4.0″ Quattro voice coil delivers immense output with exceptional stability and efficiency.

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Handling 2200 W continuous (up to 4400 W peak) and delivering a maximum SPL of 136 dB @ 1 m, WLA-121SUBA produces tight, controlled low-end that stays articulate even at the highest levels. Designed for flexibility, it can be flown or ground-stacked alongside WLA-1A full-range elements — forming the foundation of a truly commanding system.

Technical Specifications
  • System Type: Active 21" Subwoofer, Bass-reflex configuration.
  • Amplifier: Internal Class D amplification.
  • Power Output: 2200 W Continuous (RMS) / 4400 W Peak.
  • Frequency Response (+/-3 dB): 25 Hz – 100 Hz.
  • Frequency Range (-10 dB): 18 Hz – 125 Hz.
  • Max SPL @ 1m:Calculated Maximum: 140 dB.System Peak: 146 dB.Half-Space: 136 dB.
    DSP Features: Eight selectable presets for various configurations.
  • DSP Control: GUI control over DSP parameters via RS485 protocol (RJ45 network connection).
  • Input Sensitivity: +4 dBu.
  • Max Input Level: +18 dBu.
  • Protection: Thermal protection (auto reset), RMS and peak limiters, clip limiter, and DC/short protection.
  • Indicators: Limiter (Red), Signal (Green), Power/Active (White), and Find Function (Blue) LEDs.
    Cabinet Material: 18 mm plywood with Rhino Rock finish.
  • Dimensions (Unpacked): 820 mm (H) x 566 mm (W) x 760 mm (D).
  • Weight:Net Weight: 74.0 kg (162.8 lbs).Gross Weight: 80.0 kg (176 lbs).
  • Rigging & Mounting: M20 pole mount; compatible with WLA-1 Fly Frame for flown arrays.
  • Connectors:Input: Balanced socket XLR.Link: Balanced pin XLR.Power: Neutrik powerCON compatible; 100–240 V automatic switching.