{"product_id":"wharfedale-pro-wla-15b-bk-15in-133db-flyable-passive-subwoofer","title":"Wharfedale Pro WLA-15B BK | 15in - 133dB | Flyable Passive Subwoofer","description":"\u003ch2\u003ePassive Flyable Subwoofer\u003c\/h2\u003e\r\n\u003cp\u003e\u003cstrong\u003eWharfedale Pro WLA-15B BK\u003c\/strong\u003e is a compact 15-inch passive subwoofer designed for WLA-28X line array systems. With high power handling, integrated rigging hardware, and durable birch plywood construction, it delivers impactful low-frequency reinforcement for touring and installed sound applications.\u003c\/p\u003e\r\n\r\n\u003ch2\u003eWharfedale Pro WLA-15B BK Competitive Differences\u003c\/h2\u003e\r\n\u003cul\u003e\r\n  \u003cli\u003e15-inch flyable passive subwoofer with 133 dB max SPL\u003c\/li\u003e\r\n  \u003cli\u003e700W AES continuous power handling with 2800W peak capacity\u003c\/li\u003e\r\n  \u003cli\u003eIntegrated rigging system for flying or ground stack deployment\u003c\/li\u003e\r\n  \u003cli\u003eBirch plywood enclosure with Black Tough-Tone finish\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003ch2\u003eWharfedale Pro WLA-15B BK Description\u003c\/h2\u003e\r\n\u003cp\u003eThe \u003cstrong\u003eWharfedale Pro WLA-15B BK\u003c\/strong\u003e is engineered to provide deep, controlled bass performance in compact WLA-28X system configurations. Its custom 15-inch low-frequency driver features a robust 4-inch voice coil and ferrite magnet structure, delivering powerful output and reliable operation in demanding live sound environments.\u003c\/p\u003e\r\n\r\n\u003cp\u003eWith 700W AES continuous power handling, 1400W programme power, and 2800W peak capability, the WLA-15B BK offers the output required for medium to large array systems. The subwoofer reaches a maximum SPL of 133 dB at 1 meter in half-space conditions while maintaining low-frequency extension down to 35 Hz.\u003c\/p\u003e\r\n\r\n\u003cp\u003eThe enclosure is constructed from durable 15 mm and 18 mm birch plywood with a black Tough-Tone finish and black steel grille for touring durability. Integrated 3-point rigging allows the subwoofer to be flown alongside WLA-28X elements or used as a ground stack foundation when paired with compatible fly frame hardware.\u003c\/p\u003e\r\n\r\n\u003ch3\u003eWLA-15B BK Features\u003c\/h3\u003e\r\n\u003cul\u003e\r\n  \u003cli\u003e15-inch passive flyable subwoofer\u003c\/li\u003e\r\n  \u003cli\u003eBass-reflex enclosure configuration\u003c\/li\u003e\r\n  \u003cli\u003e700W AES continuous power handling\u003c\/li\u003e\r\n  \u003cli\u003e1400W programme power handling\u003c\/li\u003e\r\n  \u003cli\u003e2800W peak power handling\u003c\/li\u003e\r\n  \u003cli\u003e133 dB max SPL at 1 m half-space\u003c\/li\u003e\r\n  \u003cli\u003e15-inch LF driver with 4-inch voice coil\u003c\/li\u003e\r\n  \u003cli\u003eFerrite LF magnet structure\u003c\/li\u003e\r\n  \u003cli\u003eAluminium LF frame\u003c\/li\u003e\r\n  \u003cli\u003e35 Hz - 1.3 kHz frequency range\u003c\/li\u003e\r\n  \u003cli\u003e2 x 4-pole speaker connectors\u003c\/li\u003e\r\n  \u003cli\u003eBirch plywood enclosure construction\u003c\/li\u003e\r\n  \u003cli\u003eBlack Tough-Tone finish\u003c\/li\u003e\r\n  \u003cli\u003eBlack steel grille\u003c\/li\u003e\r\n  \u003cli\u003eIntegrated 3-point rigging system\u003c\/li\u003e\r\n  \u003cli\u003eSuitable for flying or ground deployment\u003c\/li\u003e\r\n  \u003cli\u003eIncludes mounting brackets\u003c\/li\u003e\r\n  \u003cli\u003eIntegrated carry handles\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003ch3\u003eWLA-15B BK 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: 700 W\u003c\/li\u003e\r\n  \u003cli\u003eSystem Programme Power: 1400 W\u003c\/li\u003e\r\n  \u003cli\u003eSystem Peak Power: 2800 W\u003c\/li\u003e\r\n  \u003cli\u003eMax SPL at 1 m: 133 dB half-space\u003c\/li\u003e\r\n  \u003cli\u003eFrequency Response (+\/-3 dB): 40 Hz - 1.5 kHz\u003c\/li\u003e\r\n  \u003cli\u003eFrequency Range (-10 dB): 35 Hz - 1.3 kHz\u003c\/li\u003e\r\n  \u003cli\u003eSystem Rated Impedance: 8 ohms\u003c\/li\u003e\r\n  \u003cli\u003eSensitivity: 99 dB at 2.83 V \/ 1 m\u003c\/li\u003e\r\n  \u003cli\u003eLF Driver Size: 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: 8 ohms\u003c\/li\u003e\r\n  \u003cli\u003eLF Power: 700 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\u003eBrackets Included: Yes\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: 35 Hz BW 18 dB\/oct.\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 440 mm \/ 19.1 x 29.9 x 17.3 in.\u003c\/li\u003e\r\n  \u003cli\u003ePacked Dimensions: 545 x 580 x 860 mm \/ 21.5 x 22.8 x 33.9 in.\u003c\/li\u003e\r\n  \u003cli\u003eNet Weight: 38.5 kg \/ 84.9 lb\u003c\/li\u003e\r\n  \u003cli\u003eGross Weight: 46.5 kg \/ 102.5 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-15B BK 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":52182169616666,"sku":"117225","price":1189.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/2714\/9082\/files\/wharfedale-pro-wla-15b-bk--15in---133db--flyable-passive-subwoofer_c0790a62-056a-4918-bbae-c2ef3a8cbe8c.webp?v=1778096945","url":"https:\/\/squarecable.com\/products\/wharfedale-pro-wla-15b-bk-15in-133db-flyable-passive-subwoofer","provider":"SquareCable","version":"1.0","type":"link"}