{"product_id":"turbosound-tq18b-18in-138db-reflex-loaded-touring-subwoofer","title":"Turbosound TQ18B | 18in - 138dB | Reflex Loaded Touring Subwoofer","description":"\u003ch2\u003ePassive PA Subwoofer\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eTurbosound TQ18B\u003c\/strong\u003e is a reflex loaded single 18-inch subwoofer designed for low-frequency extension in touring and installed sound systems. Its high-output design, cardioid configuration support, and durable plywood enclosure make it suitable for scalable professional PA applications.\u003c\/p\u003e \u003ch2\u003eTurbosound TQ18B Competitive Differences\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eCardioid-arrayable design with front-mounted NL4 connector for rear-firing cardioid operation\u003c\/li\u003e \u003cli\u003e18-inch neodymium low-frequency transducer with 1000W continuous and 4000W peak power handling\u003c\/li\u003e \u003cli\u003eDesigned for seamless integration with Lab Gruppen amplifiers and Lake DSP\u003c\/li\u003e \u003cli\u003eDiverging Lense Port design helps reduce distortion while maximizing output\u003c\/li\u003e \u003c\/ul\u003e \u003ch2\u003eTurbosound TQ18B Description\u003c\/h2\u003e \u003cp\u003eThe \u003cstrong\u003eTurbosound TQ18B\u003c\/strong\u003e is built to extend the low-frequency performance of TQ Series systems with powerful, controlled bass response. Its reflex loaded enclosure and optimized tuning provide extended impact while maintaining accurate transient response.\u003c\/p\u003e \u003cp\u003eDesigned for both touring and installation applications, the TQ18B supports flexible cardioid configurations and electronic delay steering for improved rear rejection and pattern control. This makes it a strong choice for venues, production companies, houses of worship, and installed performance spaces that need high-output bass with better directional control.\u003c\/p\u003e \u003cp\u003eThe enclosure uses 15 mm and 18 mm plywood with a durable semi-matte black paint finish. Integral feet support secure ground stacking, while dual M20 pole mount sockets allow satellite speaker configurations.\u003c\/p\u003e \u003ch3\u003eTQ18B Features\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eSingle 18-inch reflex loaded passive subwoofer\u003c\/li\u003e \u003cli\u003eCardioid-arrayable design for touring and installation applications\u003c\/li\u003e \u003cli\u003e1000W continuous and 4000W peak power handling\u003c\/li\u003e \u003cli\u003e18-inch neodymium low-frequency driver\u003c\/li\u003e \u003cli\u003eDesigned for low-frequency extension of TQ Series systems\u003c\/li\u003e \u003cli\u003eFlexible cardioid configurations with electronic delay steering\u003c\/li\u003e \u003cli\u003eOptimized tuning for extended low-frequency impact\u003c\/li\u003e \u003cli\u003eLow-distortion Diverging Lense Port design\u003c\/li\u003e \u003cli\u003eIntegral feet for secure ground stacking\u003c\/li\u003e \u003cli\u003eDual M20 pole mount sockets for satellite speaker setups\u003c\/li\u003e \u003cli\u003eIndustry-standard 4-pole twist-lock speaker connector on rear panel\u003c\/li\u003e \u003cli\u003eFront-mounted NL4 connector for rear-firing cardioid operation\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eTQ18B Specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eSpeaker Type: Single 18-inch reflex loaded passive subwoofer\u003c\/li\u003e \u003cli\u003eFrequency Response (+\/-3 dB): 40 Hz - 120 Hz\u003c\/li\u003e \u003cli\u003eFrequency Response (-10 dB): 32 Hz - 200 Hz\u003c\/li\u003e \u003cli\u003eNominal Dispersion: Omni\u003c\/li\u003e \u003cli\u003ePower Handling: 1000W Continuous\u003c\/li\u003e \u003cli\u003ePeak Power Handling: 4000W Peak\u003c\/li\u003e \u003cli\u003eSensitivity: 96.5 dB, 1W @ 1m\u003c\/li\u003e \u003cli\u003eMaximum SPL: 138 dB Peak\u003c\/li\u003e \u003cli\u003eImpedance: 8 ohms\u003c\/li\u003e \u003cli\u003eComponents: 1 x 18 in (460 mm) neodymium LF driver\u003c\/li\u003e \u003cli\u003eEnclosure Material: 15 mm and 18 mm plywood\u003c\/li\u003e \u003cli\u003eFinish: Semi-matte black paint\u003c\/li\u003e \u003cli\u003eConnectors: 4-pole twist-lock rear input, front-mounted NL4 connector\u003c\/li\u003e \u003cli\u003ePole Mount: Dual M20 sockets\u003c\/li\u003e \u003c\/ul\u003e","brand":"TurboSound","offers":[{"title":"Default Title","offer_id":52134328205594,"sku":"117161","price":2249.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/2714\/9082\/files\/turbosound-tq18b--18in---138db--reflex-loaded-touring-subwoofer_e22dab4b-0f6b-4a47-abce-56e110ce0627.webp?v=1777311602","url":"https:\/\/squarecable.com\/products\/turbosound-tq18b-18in-138db-reflex-loaded-touring-subwoofer","provider":"SquareCable","version":"1.0","type":"link"}