{"product_id":"wharfedale-pro-wla-218ba-bk-dual-18in-148db-active-subwoofer-for-wla-210a-systems","title":"Wharfedale Pro WLA-218BA-BK | Dual 18in - 148dB | Active Subwoofer for WLA-210A Systems","description":"\u003ch2\u003eActive Subwoofer\u003c\/h2\u003e\r\n\u003cp\u003e\u003cstrong\u003eWharfedale Pro WLA-218BA-BK\u003c\/strong\u003e is a dual 18-inch active subwoofer designed to deliver high-output low-frequency reinforcement for WLA-210A active line array systems. With 2000W continuous Class D amplification, DSP-based processing, 8 FIR presets, and rugged birch plywood construction, it provides deep bass impact for touring, production, and fixed installation applications.\u003c\/p\u003e\r\n\r\n\u003ch2\u003eWharfedale Pro WLA-218BA-BK Competitive Differences\u003c\/h2\u003e\r\n\u003cul\u003e\r\n  \u003cli\u003eDual 18-inch active bass-reflex subwoofer with 2000W continuous and 4000W peak power\u003c\/li\u003e\r\n  \u003cli\u003e148dB max SPL in half space for large-scale low-frequency reinforcement\u003c\/li\u003e\r\n  \u003cli\u003eDSP-based processing with 8 FIR presets for optimized system tuning\u003c\/li\u003e\r\n  \u003cli\u003eDesigned to integrate with WLA-210A active line array systems\u003c\/li\u003e\r\n  \u003cli\u003e18 mm birch plywood enclosure with black Tough-Tone finish for demanding professional use\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003ch2\u003eWharfedale Pro WLA-218BA-BK Description\u003c\/h2\u003e\r\n\u003cp\u003eThe \u003cstrong\u003eWharfedale Pro WLA-218BA-BK\u003c\/strong\u003e is built to provide the low-frequency foundation for high-output WLA-210A system designs. Its bass-reflex enclosure uses two custom 18-inch Wharfedale Pro ferrite LF drivers with aluminum frames and 4-inch voice coils, producing deep, authoritative bass with strong headroom and controlled response.\u003c\/p\u003e\r\n\r\n\u003cp\u003eInternal Class D amplification delivers 2000W continuous power and 4000W peak power, giving the subwoofer the output needed for demanding live sound, DJ, touring, venue, and installation applications. With a maximum SPL of 148dB at 1 meter in half space, the WLA-218BA-BK is designed for large-scale systems that require substantial low-frequency impact.\u003c\/p\u003e\r\n\r\n\u003cp\u003eOnboard DSP provides 8 FIR presets, allowing fast access to tunings for different system configurations. Preset-dependent crossover operation supports integration with WLA-210A array elements, helping system designers and engineers achieve consistent bass performance across ground-stacked and mixed deployments.\u003c\/p\u003e\r\n\r\n\u003cp\u003eThe enclosure is constructed from birch plywood and finished in black Tough-Tone for durability in professional environments. A steel grille protects the drivers, while four handles help with transport, positioning, and production use where rugged handling is required.\u003c\/p\u003e\r\n\r\n\u003ch3\u003eWLA-218BA-BK Features\u003c\/h3\u003e\r\n\u003cul\u003e\r\n  \u003cli\u003eDual 18-inch active subwoofer\u003c\/li\u003e\r\n  \u003cli\u003eBass-reflex enclosure configuration\u003c\/li\u003e\r\n  \u003cli\u003eDesigned for WLA-210A active line array system integration\u003c\/li\u003e\r\n  \u003cli\u003e2000W continuous power output\u003c\/li\u003e\r\n  \u003cli\u003e4000W peak power output\u003c\/li\u003e\r\n  \u003cli\u003e148dB max SPL measured in half space\u003c\/li\u003e\r\n  \u003cli\u003eInternal Class D amplifier design\u003c\/li\u003e\r\n  \u003cli\u003eDSP-based processing with 8 FIR presets\u003c\/li\u003e\r\n  \u003cli\u003eTwo Wharfedale Pro 18-inch ferrite LF drivers\u003c\/li\u003e\r\n  \u003cli\u003e4-inch LF voice coils\u003c\/li\u003e\r\n  \u003cli\u003eBalanced XLR input connector\u003c\/li\u003e\r\n  \u003cli\u003eBalanced XLR link connector\u003c\/li\u003e\r\n  \u003cli\u003eRJ45 RS485 network connection\u003c\/li\u003e\r\n  \u003cli\u003eUSB Type B update port\u003c\/li\u003e\r\n  \u003cli\u003epowerCON AC input and loop-through connectors\u003c\/li\u003e\r\n  \u003cli\u003eBirch plywood enclosure construction\u003c\/li\u003e\r\n  \u003cli\u003eSteel grille for driver protection\u003c\/li\u003e\r\n  \u003cli\u003eBlack Tough-Tone finish\u003c\/li\u003e\r\n  \u003cli\u003eFour handles for transport and placement\u003c\/li\u003e\r\n  \u003cli\u003eGround deployment design\u003c\/li\u003e\r\n  \u003cli\u003eRMS, peak limiter, and DC driver protection\u003c\/li\u003e\r\n  \u003cli\u003eThermal shutdown protection with auto reset\u003c\/li\u003e\r\n  \u003cli\u003ePower switch on\/off mute protection\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003ch3\u003eWLA-218BA-BK Specifications\u003c\/h3\u003e\r\n\u003cul\u003e\r\n  \u003cli\u003eActive or Passive: Active\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: 2000W\u003c\/li\u003e\r\n  \u003cli\u003eSystem Peak Power: 4000W\u003c\/li\u003e\r\n  \u003cli\u003eMax SPL: 148dB @ 1m, half space\u003c\/li\u003e\r\n  \u003cli\u003eFrequency Response: 30Hz - 100Hz +\/-3dB\u003c\/li\u003e\r\n  \u003cli\u003eFrequency Range: 25Hz - 150Hz -10dB\u003c\/li\u003e\r\n  \u003cli\u003eLF Driver Size: 2 x 18 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\u003eInput Connector: Balanced XLR socket\u003c\/li\u003e\r\n  \u003cli\u003eLink Connector: Balanced XLR\u003c\/li\u003e\r\n  \u003cli\u003eInput Sensitivity: +4dBu\u003c\/li\u003e\r\n  \u003cli\u003eMax Input Level: +18dBu\u003c\/li\u003e\r\n  \u003cli\u003eActive Loudspeaker Input Impedance: Balanced 10k ohms\u003c\/li\u003e\r\n  \u003cli\u003eSensitivity: 109dB, 2.83V \/ 1m\u003c\/li\u003e\r\n  \u003cli\u003eCrossover Frequency: Preset dependent\u003c\/li\u003e\r\n  \u003cli\u003eAmplifier Design: Class D\u003c\/li\u003e\r\n  \u003cli\u003eSignal Processing: DSP based, 8 FIR presets\u003c\/li\u003e\r\n  \u003cli\u003eDriver Protection: RMS, peak limiters, and DC protection\u003c\/li\u003e\r\n  \u003cli\u003eThermal Protection: Amplifier shutdown with auto reset\u003c\/li\u003e\r\n  \u003cli\u003eDC and Short Protection: Yes\u003c\/li\u003e\r\n  \u003cli\u003ePower On Protection: Power switch on\/off mute\u003c\/li\u003e\r\n  \u003cli\u003eLow Line Voltage Shutdown: 60% nominal line voltage\u003c\/li\u003e\r\n  \u003cli\u003eLimiter Indicator: Red LED\u003c\/li\u003e\r\n  \u003cli\u003eSignal Indicator: Green LED\u003c\/li\u003e\r\n  \u003cli\u003ePower\/Active Indicator: White LED\u003c\/li\u003e\r\n  \u003cli\u003eFind Function Indicator: Blue LED\u003c\/li\u003e\r\n  \u003cli\u003eUpdate Connector: USB Type B\u003c\/li\u003e\r\n  \u003cli\u003eNetwork Connector: RJ45, RS485\u003c\/li\u003e\r\n  \u003cli\u003eAC Input Connector: powerCON\u003c\/li\u003e\r\n  \u003cli\u003eAC Loop Through Connector: powerCON\u003c\/li\u003e\r\n  \u003cli\u003eMain Power: AC 100-120V and 220-240V, 50\/60Hz automatic\u003c\/li\u003e\r\n  \u003cli\u003ePower Supply: High-efficiency switching mode power supply\u003c\/li\u003e\r\n  \u003cli\u003eEnclosure Material: Birch plywood\u003c\/li\u003e\r\n  \u003cli\u003eGrille Material and Finish: Steel\u003c\/li\u003e\r\n  \u003cli\u003eFinish: Black Tough-Tone\u003c\/li\u003e\r\n  \u003cli\u003eHandles: 4\u003c\/li\u003e\r\n  \u003cli\u003eDeployment: 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: No\u003c\/li\u003e\r\n  \u003cli\u003eBluetooth: No\u003c\/li\u003e\r\n  \u003cli\u003eIP Certification: None\u003c\/li\u003e\r\n  \u003cli\u003eUnpacked Front Height: 22.05 in (560 mm)\u003c\/li\u003e\r\n  \u003cli\u003eUnpacked Rear Height: 22.05 in (560 mm)\u003c\/li\u003e\r\n  \u003cli\u003eUnpacked Width Front: 41.93 in (1065 mm)\u003c\/li\u003e\r\n  \u003cli\u003eUnpacked Width Rear: 41.93 in (1065 mm)\u003c\/li\u003e\r\n  \u003cli\u003eUnpacked Depth: 29.76 in (756 mm)\u003c\/li\u003e\r\n  \u003cli\u003ePacked Height: 25.79 in (655 mm)\u003c\/li\u003e\r\n  \u003cli\u003ePacked Width Front: 33.07 in (840 mm)\u003c\/li\u003e\r\n  \u003cli\u003ePacked Width Rear: 33.07 in (840 mm)\u003c\/li\u003e\r\n  \u003cli\u003ePacked Depth: 45.28 in (1150 mm)\u003c\/li\u003e\r\n  \u003cli\u003eNet Weight: 191.4 lb (86.8 kg)\u003c\/li\u003e\r\n  \u003cli\u003eGross Weight: 193.3 lb (87.7 kg)\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\u003eWharfedale Pro WLA-218BA-BK active 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":52337869553946,"sku":"117380","price":3264.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/2714\/9082\/files\/wharfedale-pro-wla-218ba-bk--dual-18in---148db--active-subwoofer-for-wla-210a-systems_f4fa29f8-8e74-48d8-a9ea-886e473a429e.webp?v=1781107738","url":"https:\/\/squarecable.com\/products\/wharfedale-pro-wla-218ba-bk-dual-18in-148db-active-subwoofer-for-wla-210a-systems","provider":"SquareCable","version":"1.0","type":"link"}