{"product_id":"kef-ci200qsb-thx-in-wall-subwoofers","title":"KEF - Ci200QSb-THX - In-Wall Subwoofers","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe Ci200QSb-THX is a square Ci-Q Series in-wall subwoofer with a 200 mm high-output sub-bass driver, sold as a pair. It can run in passive mode through its internal crossover to add low-frequency output to KEF in-wall or in-ceiling speakers, or in active mode driven by KEF's KASA500 amplifier (sold separately).\u003c\/p\u003e\u003cp\u003eIn active mode, KEF specifies two pairs on two KASA500 amplifiers for THX Certified Select performance, and four pairs on two KASA500 amplifiers for THX Certified Ultra.\u003c\/p\u003e\u003ch2\u003eDrivers and Technology\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e200 mm (8 in.) woofer with extended bass response\u003c\/li\u003e\n\u003cli\u003ePassive mode with internal 100 Hz crossover, or active mode with the KEF KASA500 amplifier\u003c\/li\u003e\n\u003cli\u003eTHX Certified Ultra \/ THX Certified Select in active mode, depending on configuration\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTHX System Configurations (per KEF)\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMedium room, THX Certified Select (up to 2,000 cubic feet): 4 x Ci200QSb-THX (2 pairs) with KASA500 amplification\u003c\/li\u003e\n\u003cli\u003eLarge room, THX Certified Ultra (up to 3,000 cubic feet): 8 x Ci200QSb-THX (4 pairs) with 2 x KASA500\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIn-wall mounting, square cut-out 238 x 238 mm\u003c\/li\u003e\n\u003cli\u003eMounting depth from surface 101.6 mm\u003c\/li\u003e\n\u003cli\u003eIdeal rear volume 32 L, minimum rear volume 20 L, per subwoofer (KEF advises doubling for a pair in one space)\u003c\/li\u003e\n\u003cli\u003eOptional RIF200S rough-in frame (sold separately)\u003c\/li\u003e\n\u003cli\u003eUltra-Thin Bezel (UTB) with paintable magnetic grille\u003c\/li\u003e\n\u003cli\u003eIP64 dust and water rating\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDesign\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSquare in-wall subwoofer, passive or active (KASA500), Ci-Q Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDrive Units\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLF: 200 mm (8 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response, Passive Mode (±6 dB)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 Hz - 100 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response, Active Mode (±6 dB)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18 Hz - 140 Hz (KEF product page); 30 Hz - 140 Hz (KEF spec sheet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Range (-10 dB)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePassive: 29 Hz - 140 Hz; Active: 25 Hz - KASA500 setting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCrossover Frequency, Passive Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensitivity, Passive Mode (2.83 V\/1 m)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e85 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal Impedance, Passive Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum SPL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e104 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecommended Amplifier Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePassive: 10 - 150 W; Active: KEF KASA500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecommended Low-Pass Filter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePassive: 80 Hz - 120 Hz; Active: 50 Hz - 120 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Dimensions (H x W x D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e273 x 273 x 106 mm (each)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCut-Out Dimensions (H x W)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e238 x 238 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Depth From Surface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e101.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIdeal \/ Minimum Rear Volume\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 L \/ 20 L per subwoofer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptional Rough-In Frame\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIF200S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.3 kg each (6.6 kg pair)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDust and Water Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTHX Certified Ultra, THX Certified Select (active mode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUnit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSold as a pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"KEF","offers":[{"title":"Default Title","offer_id":50715348861185,"sku":"SP3894AA","price":1400.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1133\/9398\/files\/KEF-Ci200QSb-THX-In-Wall-Subwoofers-australia.jpg?v=1791952297","url":"https:\/\/sydneyhifimonavale.com.au\/products\/kef-ci200qsb-thx-in-wall-subwoofers","provider":"Sydney Hi-Fi Mona Vale","version":"1.0","type":"link"}