{"product_id":"wharfedale-pro-wla-28sub-dual-15in-145db-flyable-passive-subwoofer","title":"Wharfedale Pro WLA-28SUB | Dual 15in - 145dB | Flyable Passive Subwoofer","description":"\u003ch2\u003ePassive Line Array Subwoofer\u003c\/h2\u003e\r\n\u003cp\u003e\u003cstrong\u003eWharfedale Pro WLA-28SUB\u003c\/strong\u003e is a dual 15-inch passive subwoofer designed for high-impact low-frequency reinforcement in WLA-28X touring and installation systems. With flyable rigging, birch plywood construction, and 145 dB max SPL, it provides powerful bass support for large-scale sound applications.\u003c\/p\u003e\r\n\r\n\u003ch2\u003eWharfedale Pro WLA-28SUB Competitive Differences\u003c\/h2\u003e\r\n\u003cul\u003e\r\n  \u003cli\u003eDual 15-inch LF drivers with 4-inch voice coils\u003c\/li\u003e\r\n  \u003cli\u003e1200W continuous, 2400W program, and 4800W peak power handling\u003c\/li\u003e\r\n  \u003cli\u003e145 dB max SPL at 1 m in half-space conditions\u003c\/li\u003e\r\n  \u003cli\u003eFlyable or ground-deployable design with integral 3-point rigging\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003ch2\u003eWharfedale Pro WLA-28SUB Description\u003c\/h2\u003e\r\n\u003cp\u003eThe \u003cstrong\u003eWharfedale Pro WLA-28SUB\u003c\/strong\u003e is built for professional low-frequency reinforcement in touring rigs, venues, and installed WLA-28X systems. Its bass-reflex enclosure houses two 15-inch ferrite LF drivers, each with a 4-inch voice coil, delivering controlled output for demanding live sound environments.\u003c\/p\u003e\r\n\r\n\u003cp\u003eWith 1200W continuous power handling, 2400W program power, and 4800W peak capacity, this passive subwoofer provides the headroom needed for high-output applications. Its 4 ohm system impedance, 108 dB sensitivity, and 39 Hz low-frequency response help extend system impact while maintaining efficient performance.\u003c\/p\u003e\r\n\r\n\u003cp\u003eThe enclosure is constructed from birch plywood with a black Tough-Tone finish and a black steel grille for road-ready durability. Integral rigging hardware allows the subwoofer to be flown within compatible arrays or used on the ground, making it suitable for both touring productions and fixed installations.\u003c\/p\u003e\r\n\r\n\u003ch3\u003eWLA-28SUB Features\u003c\/h3\u003e\r\n\u003cul\u003e\r\n  \u003cli\u003ePassive dual 15-inch subwoofer for WLA-28X systems\u003c\/li\u003e\r\n  \u003cli\u003eBass-reflex enclosure configuration\u003c\/li\u003e\r\n  \u003cli\u003e2 x 15-inch LF drivers with ferrite magnets\u003c\/li\u003e\r\n  \u003cli\u003e4-inch LF voice coils\u003c\/li\u003e\r\n  \u003cli\u003e1200W continuous system power handling\u003c\/li\u003e\r\n  \u003cli\u003e2400W program power handling\u003c\/li\u003e\r\n  \u003cli\u003e4800W peak power handling\u003c\/li\u003e\r\n  \u003cli\u003e145 dB max SPL at 1 m in half-space conditions\u003c\/li\u003e\r\n  \u003cli\u003e39 Hz - 900 Hz frequency response\u003c\/li\u003e\r\n  \u003cli\u003ePreset library support\u003c\/li\u003e\r\n  \u003cli\u003e2 x 4-pole speaker connectors\u003c\/li\u003e\r\n  \u003cli\u003eBirch plywood enclosure\u003c\/li\u003e\r\n  \u003cli\u003eBlack Tough-Tone finish with black steel grille\u003c\/li\u003e\r\n  \u003cli\u003eIntegral 3-point rigging hardware\u003c\/li\u003e\r\n  \u003cli\u003eSuitable for flying or ground deployment\u003c\/li\u003e\r\n  \u003cli\u003e2 carry handles\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003ch3\u003eWLA-28SUB Specifications\u003c\/h3\u003e\r\n\u003cul\u003e\r\n  \u003cli\u003eActive or Passive: Passive\u003c\/li\u003e\r\n  \u003cli\u003eSystem Type: Subwoofer\u003c\/li\u003e\r\n  \u003cli\u003eConfiguration: Bass-reflex\u003c\/li\u003e\r\n  \u003cli\u003eSystem Continuous Power: 1200 W\u003c\/li\u003e\r\n  \u003cli\u003eSystem Programme Power: 2400 W\u003c\/li\u003e\r\n  \u003cli\u003eSystem Peak Power: 4800 W\u003c\/li\u003e\r\n  \u003cli\u003eMax SPL at 1 m: 145 dB half-space\u003c\/li\u003e\r\n  \u003cli\u003eFrequency Response (+\/-3 dB): 39 Hz - 900 Hz\u003c\/li\u003e\r\n  \u003cli\u003eFrequency Range (-10 dB): 39 Hz - 1.5 kHz\u003c\/li\u003e\r\n  \u003cli\u003eSystem Rated Impedance: 4 ohms\u003c\/li\u003e\r\n  \u003cli\u003eSensitivity: 108 dB at 2.83 V \/ 1 m\u003c\/li\u003e\r\n  \u003cli\u003eLF Driver Size: 2 x 15 in.\u003c\/li\u003e\r\n  \u003cli\u003eLF Magnet Material: Ferrite\u003c\/li\u003e\r\n  \u003cli\u003eLF Frame Material: Aluminium\u003c\/li\u003e\r\n  \u003cli\u003eLF Voice Coil Size: 4 in.\u003c\/li\u003e\r\n  \u003cli\u003eLF Rated Impedance: 2 x 8 ohms\u003c\/li\u003e\r\n  \u003cli\u003eLF Power: 2 x 600 W RE:AES2-2012\u003c\/li\u003e\r\n  \u003cli\u003eInput Connector: 2 x 4-pole speaker connector\u003c\/li\u003e\r\n  \u003cli\u003eEnclosure Material: Birch plywood\u003c\/li\u003e\r\n  \u003cli\u003eGrille Material and Finish: Steel black\u003c\/li\u003e\r\n  \u003cli\u003eFinish: Black Tough-Tone\u003c\/li\u003e\r\n  \u003cli\u003eHandles: 2\u003c\/li\u003e\r\n  \u003cli\u003eDeployment: Flying, ground\u003c\/li\u003e\r\n  \u003cli\u003ePole Mount: None\u003c\/li\u003e\r\n  \u003cli\u003eRigging: Yes\u003c\/li\u003e\r\n  \u003cli\u003eIntegral Rigging: 3 points\u003c\/li\u003e\r\n  \u003cli\u003eCrossover Frequency: Preset dependent\u003c\/li\u003e\r\n  \u003cli\u003eRecommended HPF: 39 Hz, BW 18 dB\/oct.\u003c\/li\u003e\r\n  \u003cli\u003eBi-Amp Mode Switch: No\u003c\/li\u003e\r\n  \u003cli\u003eBluetooth: No\u003c\/li\u003e\r\n  \u003cli\u003eIP Certification: None\u003c\/li\u003e\r\n  \u003cli\u003eTransformer: No\u003c\/li\u003e\r\n  \u003cli\u003eUnpacked Dimensions: 485 x 760 x 716 mm \/ 19.1 x 29.9 x 28.2 in.\u003c\/li\u003e\r\n  \u003cli\u003ePacked Dimensions: 850 x 575 x 716 mm \/ 33.5 x 22.6 x 28.2 in.\u003c\/li\u003e\r\n  \u003cli\u003eNet Weight: 61.2 kg \/ 134.9 lb\u003c\/li\u003e\r\n  \u003cli\u003eGross Weight: 66 kg \/ 145.5 lb\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003ch3\u003eWhat's In The Box\u003c\/h3\u003e\r\n\u003cul\u003e\r\n  \u003cli\u003eWLA-28SUB subwoofer\u003c\/li\u003e\r\n  \u003cli\u003eUser manual\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"Wharfedale Pro","offers":[{"title":"Default Title","offer_id":52182139699482,"sku":"117223","price":1797.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/2714\/9082\/files\/wharfedale-pro-wla-28sub--dual-15in---145db--flyable-passive-subwoofer_2a67068c-40eb-44fa-b098-6f8a4655241e.webp?v=1778095831","url":"https:\/\/squarecable.com\/products\/wharfedale-pro-wla-28sub-dual-15in-145db-flyable-passive-subwoofer","provider":"SquareCable","version":"1.0","type":"link"}