{"product_id":"wharfedale-pro-wla-121suba-21in-136db-active-flyable-subwoofer","title":"Wharfedale Pro WLA-121SUBA | 21in - 136dB | Active Flyable Subwoofer","description":"\u003ch2\u003eActive Flyable Subwoofer\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eWharfedale Pro WLA-121SUBA\u003c\/strong\u003e is a 21-inch active hybrid curvature array subwoofer designed for high-output, controlled low-frequency performance in large-scale touring and installation systems. With integrated Class D amplification, DSP processing, and rigging hardware, it delivers flexible deployment for flown or ground-stacked configurations.\u003c\/p\u003e \u003ch2\u003eWharfedale Pro WLA-121SUBA Competitive Differences\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e21-inch Beyma driver with 4-inch Quattro voice coil for powerful low-frequency output\u003c\/li\u003e \u003cli\u003e2200W continuous and 4400W peak Class D amplification\u003c\/li\u003e \u003cli\u003eDSP processing with 8 FIR presets for system integration\u003c\/li\u003e \u003cli\u003e136dB maximum SPL for high-impact bass performance\u003c\/li\u003e \u003cli\u003eIntegrated 3-point rigging for flown or ground deployment\u003c\/li\u003e \u003c\/ul\u003e \u003ch2\u003eWharfedale Pro WLA-121SUBA Description\u003c\/h2\u003e \u003cp\u003eThe \u003cstrong\u003eWharfedale Pro WLA-121SUBA\u003c\/strong\u003e is engineered to provide the low-frequency foundation for WLA-1A array systems. Its custom 21-inch Beyma ferrite driver with a 4-inch Quattro voice coil delivers deep, powerful bass with excellent stability and efficiency.\u003c\/p\u003e \u003cp\u003eBuilt-in Class D amplification provides 2200W continuous power and 4400W peak output, while integrated DSP with FIR presets ensures optimized system alignment and performance. Advanced protection systems—including RMS, peak limiting, DC, short circuit, and thermal protection—help maintain reliability in demanding environments.\u003c\/p\u003e \u003cp\u003eThe enclosure is constructed from durable birch plywood and finished in black Tough-Tone coating, with a powder-coated perforated steel grille for protection. Integrated rigging supports flown arrays, while the cabinet design also allows for ground stacking and M20 pole mounting for flexible deployment.\u003c\/p\u003e \u003ch3\u003eWLA-121SUBA Features\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e21-inch active hybrid curvature array flyable subwoofer\u003c\/li\u003e \u003cli\u003eBuilt-in Class D amplifier\u003c\/li\u003e \u003cli\u003e2200W continuous and 4400W peak power output\u003c\/li\u003e \u003cli\u003e136dB maximum SPL at 1m (half space)\u003c\/li\u003e \u003cli\u003eCustom Beyma 21-inch ferrite driver\u003c\/li\u003e \u003cli\u003e4-inch Quattro LF voice coil\u003c\/li\u003e \u003cli\u003eDSP-based processing with 8 FIR presets\u003c\/li\u003e \u003cli\u003eBass-reflex enclosure design\u003c\/li\u003e \u003cli\u003eIntegrated 3-point rigging system\u003c\/li\u003e \u003cli\u003eSupports flying and ground-stacked deployment\u003c\/li\u003e \u003cli\u003eM20 pole mount for system expansion\u003c\/li\u003e \u003cli\u003eBalanced XLR input and link connectors\u003c\/li\u003e \u003cli\u003eUSB Type B update port and RJ45 RS485 networking\u003c\/li\u003e \u003cli\u003eComprehensive protection: RMS, peak limiter, DC, short, and thermal\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eWLA-121SUBA Specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eActive or Passive: Active\u003c\/li\u003e \u003cli\u003eSystem Type: Subwoofer\u003c\/li\u003e \u003cli\u003eConfiguration: Bass-reflex\u003c\/li\u003e \u003cli\u003eSystem Continuous Power: 2200W\u003c\/li\u003e \u003cli\u003eSystem Peak Power: 4400W\u003c\/li\u003e \u003cli\u003eMax SPL: 136dB at 1m (half space)\u003c\/li\u003e \u003cli\u003eFrequency Response: 25 Hz - 100 Hz (+\/-3 dB)\u003c\/li\u003e \u003cli\u003eFrequency Range: 18 Hz - 125 Hz (-10 dB)\u003c\/li\u003e \u003cli\u003eDriver Brand: Beyma\u003c\/li\u003e \u003cli\u003eLF Driver Size: 21 in\u003c\/li\u003e \u003cli\u003eLF Magnet Material: Ferrite\u003c\/li\u003e \u003cli\u003eLF Frame Material: Aluminum\u003c\/li\u003e \u003cli\u003eLF Voice Coil Size: 4 in\u003c\/li\u003e \u003cli\u003eInput Connector: Balanced XLR socket\u003c\/li\u003e \u003cli\u003eLink Connector: Balanced XLR socket\u003c\/li\u003e \u003cli\u003eCabinet Type: Rectangle\u003c\/li\u003e \u003cli\u003eEnclosure Material: Birch plywood\u003c\/li\u003e \u003cli\u003eGrille: Powder-coated perforated steel\u003c\/li\u003e \u003cli\u003eFinish: Black Tough-Tone\u003c\/li\u003e \u003cli\u003eHandles: 2 side (4 pcs) + 2 (top\/bottom)\u003c\/li\u003e \u003cli\u003eDeployment: Flying, ground\u003c\/li\u003e \u003cli\u003ePole Mount: M20\u003c\/li\u003e \u003cli\u003eRigging: Integrated 3-point rigging\u003c\/li\u003e \u003cli\u003eSensitivity: 103dB (2.83V \/ 1m)\u003c\/li\u003e \u003cli\u003eCrossover Frequency: Preset dependent\u003c\/li\u003e \u003cli\u003eAmplifier Design: Class D\u003c\/li\u003e \u003cli\u003eSignal Processing: DSP based, 8 FIR presets\u003c\/li\u003e \u003cli\u003eDriver Protection: RMS, peak limiters, and DC\u003c\/li\u003e \u003cli\u003eThermal Protection: Amplifier shutdown with auto reset\u003c\/li\u003e \u003cli\u003eDC and Short Protection: Yes\u003c\/li\u003e \u003cli\u003eClip Limiter: Yes\u003c\/li\u003e \u003cli\u003eLimiter Indicator: Red LED\u003c\/li\u003e \u003cli\u003eSignal Indicator: Green LED\u003c\/li\u003e \u003cli\u003ePower Indicator: White LED\u003c\/li\u003e \u003cli\u003eFind Indicator: Blue LED\u003c\/li\u003e \u003cli\u003eInput Impedance: 10 kΩ balanced\u003c\/li\u003e \u003cli\u003eInput Sensitivity: +4 dBu\u003c\/li\u003e \u003cli\u003eMax Input Level: +18 dBu\u003c\/li\u003e \u003cli\u003eUpdate Port: USB Type B\u003c\/li\u003e \u003cli\u003eNetwork: RJ45 RS485\u003c\/li\u003e \u003cli\u003eMain Power: AC 100-120V \/ 220-240V, 50\/60 Hz auto\u003c\/li\u003e \u003cli\u003ePower Supply: Dual switching mode power supply\u003c\/li\u003e \u003cli\u003eDimensions: 32.3 x 22.3 x 29.9 in (820 x 566 x 760 mm)\u003c\/li\u003e \u003cli\u003eWeight: 163.1 lb (74 kg)\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eWhat's In The Box\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eWharfedale Pro WLA-121SUBA subwoofer\u003c\/li\u003e \u003cli\u003eWLA-RH1 rain hood\u003c\/li\u003e \u003cli\u003eUser manual\u003c\/li\u003e \u003c\/ul\u003e","brand":"Wharfedale Pro","offers":[{"title":"Default Title","offer_id":52139362255130,"sku":"117172","price":3319.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/2714\/9082\/files\/wharfedale-pro-wla-121suba--21in---136db--active-flyable-subwoofer_0f2d575a-6254-4563-bebc-bb9dc7876ba0.webp?v=1777399410","url":"https:\/\/squarecable.com\/products\/wharfedale-pro-wla-121suba-21in-136db-active-flyable-subwoofer","provider":"SquareCable","version":"1.0","type":"link"}