{"product_id":"dolby-cs218xl-sls-dual-18-inch-cinema-subwoofer","title":"Dolby CS218XL – SLS Dual 18-Inch Cinema Subwoofer","description":"\u003ch2\u003eWhat is the Dolby SLS CS218XL?\u003c\/h2\u003e\n\u003cp\u003eThe SLS CS218XL is a dual 18-inch cinema subwoofer module from Dolby's SLS line. It is a high-performance, front-loaded, vented box design with maximized low-frequency extension for cinema systems' extreme low-frequency support. Its two 18-inch drivers use large magnet structures and high-temperature voice coils rated at 600 W RMS each.\u003c\/p\u003e\n\n\u003ch2\u003eHow does the Dolby SLS CS218XL work?\u003c\/h2\u003e\n\u003cp\u003eThe CS218XL is a passive, ported subwoofer driven by an external amplifier channel at a 4-ohm nominal impedance. The front-loaded driver arrangement gives high sensitivity, rated at 102 dB (1 W @ 1 m), and the vented cabinet extends response down to 29 Hz with an operating range of 29 Hz to 300 Hz.\u003c\/p\u003e\n\u003cp\u003ePower handling is 1200 W (69 V) AES\/2, and calculated maximum output is 133 dB continuous and 139 dB peak at one metre. The cabinet is built from 13-ply 3\/4-inch Baltic birch with extensive internal bracing, finished in flat black latex, and accepts wiring on a barrier strip input.\u003c\/p\u003e\n\u003cp\u003eDolby publishes processor settings for the CS218XL so it integrates with Dolby cinema processors such as the \u003ca href=\"https:\/\/creationnetworks.net\/products\/dolby-atmos-cinema-processor-cp950a\"\u003eCP950A\u003c\/a\u003e and \u003ca href=\"https:\/\/creationnetworks.net\/products\/dolby-cp950-audio-processor\"\u003eCP950\u003c\/a\u003e. A Dolby Multichannel Amplifier such as the \u003ca href=\"https:\/\/creationnetworks.net\/products\/dolby-professional-multichannel-amplifier\"\u003eDMA16302\u003c\/a\u003e is a typical amplifier choice.\u003c\/p\u003e\n\n\u003ch2\u003eWhat are the key features of the Dolby SLS CS218XL?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront-loaded ported design\u003c\/strong\u003e — high sensitivity with extended low-frequency response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo 600 W RMS 18-inch drivers\u003c\/strong\u003e — large magnet structures and high-temperature voice coils.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13-ply Baltic birch cabinet\u003c\/strong\u003e — 3\/4-inch construction with extensive internal bracing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1200 W AES power handling\u003c\/strong\u003e — 133 dB continuous and 139 dB peak calculated output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrier strip input\u003c\/strong\u003e — straightforward field wiring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhere is the Dolby SLS CS218XL typically used?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCinema auditorium\u003c\/li\u003e\n\u003cli\u003eScreening room\u003c\/li\u003e\n\u003cli\u003eAuditorium\u003c\/li\u003e\n\u003cli\u003eHouse of worship\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;max-width:640px;min-width:300px;table-layout:fixed;border-collapse:collapse;\"\u003e\n\u003ccolgroup\u003e\n\u003ccol style=\"width:38%\"\u003e\n\u003ccol style=\"width:62%\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003eSLS CS218XL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOperating range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e29 Hz to 300 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eSensitivity (1 W @ 1 m)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e102 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003ePower handling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e1200 W (69 V) AES\/2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eMax SPL (calculated) @ 1 m\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e133 dB continuous \/ 139 dB peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eNominal impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e4 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eTransducers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e18\" woofer x 2 (600 W RMS each)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eInput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003eBarrier strip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eEnclosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e13-ply Baltic birch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003eFlat black latex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e48\" x 30\" x 25.2\" (122 x 76 x 64 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eNet weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e148 lb (67.13 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eShipping weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e175 lb (79.4 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eIs the CS218XL compatible with Dolby Atmos and the CP950A?\u003c\/h3\u003e\n\u003cp\u003eYes. It provides extreme low-frequency support for cinema systems and integrates with Dolby processors such as the CP950A using Dolby's published CS218XL processor settings.\u003c\/p\u003e\n\u003ch3\u003eWhat amplifier does it need?\u003c\/h3\u003e\n\u003cp\u003eThe CS218XL is passive with a 4-ohm nominal impedance and 1200 W (69 V) AES\/2 power handling. Creation Networks sizes Dolby Multichannel Amplifier channels during design.\u003c\/p\u003e\n\u003ch3\u003eIs the CS218XL a Dolby product?\u003c\/h3\u003e\n\u003cp\u003eYes. SLS Audio cinema products are part of the Dolby Professional cinema line, and the CS218XL is listed on Dolby's cinema audio product pages.\u003c\/p\u003e\n\u003ch3\u003eHow large is the cabinet?\u003c\/h3\u003e\n\u003cp\u003eIt measures 48 x 30 x 25.2 inches (122 x 76 x 64 cm) and weighs 148 lb, so plan floor space and handling accordingly.\u003c\/p\u003e\n\u003ch3\u003eWhat warranty and support are available?\u003c\/h3\u003e\n\u003cp\u003eThe CS218XL carries Dolby's manufacturer warranty, confirmed with your quote. Creation Networks designs, installs and tunes Dolby cinema systems; see the \u003ca href=\"https:\/\/creationnetworks.net\/collections\/dolby-professional\"\u003eDolby Professional collection\u003c\/a\u003e and request a quote.\u003c\/p\u003e","brand":"Dolby Professional","offers":[{"title":"Default Title","offer_id":68119005888748,"sku":"CS218XL","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/sls_cs218xl_front.jpg?v=1794127336","url":"https:\/\/creationnetworks.net\/products\/dolby-cs218xl-sls-dual-18-inch-cinema-subwoofer","provider":"Creation Networks","version":"1.0","type":"link"}