{"title":"KEF Ci THX Series","description":"\u003cp\u003eThe KEF Ci THX Series range.\u003c\/p\u003e","products":[{"product_id":"kef-ci160rr-thx-6-5-inch-in-ceiling-in-wall-speaker","title":"KEF Ci160RR-THX 6.5\" In-Ceiling \/ In-Wall Speaker","description":"\u003cp\u003eThe KEF Ci160RR-THX is a premium 6.5\" in-ceiling and in-wall speaker designed for discerning listeners who want serious sound quality without visible hardware. THX Ultra certified, it's equally at home delivering stereo music in a kitchen or living room as it is powering surround and height channels in a dedicated home cinema.\u003c\/p\u003e\u003ch3\u003eWhy we like it\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eKEF's acclaimed Uni-Q driver array places the tweeter at the acoustic centre of the mid\/bass cone for even, coherent dispersion throughout the room\u003c\/li\u003e\n\u003cli\u003eTHX Ultra certification guarantees cinema-accurate performance for home theatre installations\u003c\/li\u003e\n\u003cli\u003eExtended frequency response delivers genuine depth and detail across the full audio spectrum\u003c\/li\u003e\n\u003cli\u003ePaintable ultra-low profile grille and slim bezel disappear into any ceiling or wall finish\u003c\/li\u003e\n\u003cli\u003eShares a universal 160mm-class cut-out with other KEF Ci-series models, simplifying upgrades or replacements\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation notes\u003c\/h3\u003e\u003cp\u003eThis speaker requires a 196mm cut-out diameter and a mounting depth of 115mm, with an external face diameter of 234.6mm once installed. Given its 4 ohm impedance and wide 10-190W power handling, it pairs well with multi-room amplifiers such as a Sonos Amp, or a WiiM Amp for streaming-based setups. Always check ceiling void depth before installation to ensure a proper fit.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eDriver Units\u003c\/td\u003e\n\u003ctd\u003e165mm (6.5\") Uni-Q woofer + 25mm (1\") tweeter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Impedance\u003c\/td\u003e\n\u003ctd\u003e4 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e90 dB (2.83V\/1m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e52 Hz - 24 kHz (±6 dB, open-backed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtended Range\u003c\/td\u003e\n\u003ctd\u003e38 Hz - 30 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Amplifier Power\u003c\/td\u003e\n\u003ctd\u003e10 - 190 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCut-Out Diameter\u003c\/td\u003e\n\u003ctd\u003e196 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Face Diameter\u003c\/td\u003e\n\u003ctd\u003e234.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Depth\u003c\/td\u003e\n\u003ctd\u003e115 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 2.94 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"KEF","offers":[{"title":"Single","offer_id":55348787478867,"sku":"Ci160RR","price":499.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1115\/1323\/9891\/files\/p_Ci160RR-THX-MAIN_8fa83d1f-ce13-4546-bb02-a4915fecefd1.jpg?v=1791895657"},{"product_id":"kef-ci200qsb-thx-8-inch-in-wall-subwoofer","title":"KEF Ci200QSb-THX 8\" In-Wall Subwoofer","description":"\u003cp\u003eThe KEF Ci200QSb-THX is a pair of 8-inch in-wall subwoofers engineered for serious home cinema builds, multi-room installations and trade projects where deep bass needs to disappear into the wall. THX Ultra-2 and Select-2 certified, this pair is designed to deliver cinema-grade low end without a visible subwoofer cabinet, making it ideal for dedicated cinema rooms, media lounges and feature installations where aesthetics matter as much as performance.\u003c\/p\u003e\n\u003ch3\u003eWhy we like it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTHX Ultra-2\/Select-2 certification guarantees flat response, low distortion and high output\u003c\/li\u003e\n\u003cli\u003eFlexible passive or active (KASA500) operation to suit different system configurations\u003c\/li\u003e\n\u003cli\u003eUltra-Thin Bezel and paintable magnetic grille blend into any décor\u003c\/li\u003e\n\u003cli\u003eIP64 rating adds durability for garages and less climate-controlled rooms\u003c\/li\u003e\n\u003cli\u003eDog-leg mounting system speeds up installation into standard wall cavities\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation notes\u003c\/h3\u003e\n\u003cp\u003eEach subwoofer requires a 238 x 238mm cut-out and a mounting depth of 101.6mm, with a compatible wall cavity thickness of 6-40mm. In passive mode, pair with a 10-150W amplifier; for full THX active performance, use alongside KEF's KASA500 amplifier, particularly when installing multiple pairs for larger rooms.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eDriver\u003c\/td\u003e\n\u003ctd\u003e8\" (200mm) dynamic LF driver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e6 Ohm (passive mode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e85dB (passive mode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e40Hz-100Hz (passive); 18Hz-140Hz (active)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrossover\u003c\/td\u003e\n\u003ctd\u003e100Hz (passive mode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmplifier Power\u003c\/td\u003e\n\u003ctd\u003e10-150W (passive); KASA500 (active)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCut-Out Size\u003c\/td\u003e\n\u003ctd\u003e238 x 238mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Dimensions\u003c\/td\u003e\n\u003ctd\u003e273 x 273 x 106mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Depth\u003c\/td\u003e\n\u003ctd\u003e101.6mm; wall thickness 6-40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (each)\u003c\/td\u003e\n\u003ctd\u003e3.3kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"KEF","offers":[{"title":"Pair","offer_id":55348791247187,"sku":"Ci200QSb-THX","price":800.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1115\/1323\/9891\/files\/Ci200QSb-THX-1_51ebcb41-3544-4476-b9b2-78f9122b34ac.jpg?v=1791895668"},{"product_id":"kef-ci200rr-thx-8-inch-thx-ultra2-certified-in-ceiling-speaker","title":"KEF Ci200RR-THX 8\" THX Ultra2 Certified In-Ceiling Speaker","description":"\u003cp\u003eThe KEF Ci200RR-THX is a serious in-ceiling speaker built for large home cinema rooms and demanding multi-room installations where high output and low distortion really matter. THX Ultra2 certification makes it a natural choice for dedicated cinema rooms, Dolby Atmos height channels, or any space that needs cinema-grade dynamics from a discreet ceiling speaker.\u003c\/p\u003e\n\n\u003ch3\u003eWhy we like it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eKEF's Uni-Q driver array places the tweeter at the acoustic centre of the woofer for a wide, consistent soundstage from almost any seat\u003c\/li\u003e\n\u003cli\u003eTangerine Waveguide shaping improves high-frequency dispersion and extends the listening sweet spot\u003c\/li\u003e\n\u003cli\u003eTHX Ultra2 certification guarantees high-output, low-distortion performance suited to large rooms\u003c\/li\u003e\n\u003cli\u003eIP64 rating with UV-resistant construction allows use in more demanding environments\u003c\/li\u003e\n\u003cli\u003eUltra-thin bezel and paintable magnetic grille blend neatly into any ceiling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation notes\u003c\/h3\u003e\n\u003cp\u003eThe Ci200RR-THX requires a 240mm cut-out and a mounting depth of 126.5mm from the ceiling surface, with an overall depth of 132.6mm. Given its 190W handling and THX certification, it pairs best with a dedicated AV receiver or a higher-powered multi-channel amplifier rather than a compact streaming amp, making it well suited to serious home cinema and Atmos height-channel applications.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Impedance\u003c\/td\u003e\n\u003ctd\u003e4 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e90dB (2.83V\/1m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e33Hz - 28kHz (±6dB), open-backed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrossover Frequency\u003c\/td\u003e\n\u003ctd\u003e2.2kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrive Units\u003c\/td\u003e\n\u003ctd\u003eLF: 200mm (8in) Uni-Q; HF: 38mm (1.5in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Amplifier Power\u003c\/td\u003e\n\u003ctd\u003e10 - 190W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Dimensions\u003c\/td\u003e\n\u003ctd\u003eDiameter 290mm; Depth 132.6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCut-out Diameter\u003c\/td\u003e\n\u003ctd\u003e240mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Depth from Surface\u003c\/td\u003e\n\u003ctd\u003e126.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e3.6kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"KEF","offers":[{"title":"Single","offer_id":55348791378259,"sku":"Ci200RR-THX","price":519.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1115\/1323\/9891\/files\/Ci200RR_THX_83647574-7e51-4b8f-ad2d-85a6b686a163.jpg?v=1791895669"},{"product_id":"kef-ci4100ql-thx-ultra-slim-in-wall-speaker","title":"KEF Ci4100QL-THX Ultra Slim In-Wall Speaker","description":"\u003cp\u003eThe KEF Ci4100QL-THX is an ultra slim in-wall speaker built for serious home cinema and multi-room installations where discretion matters as much as performance. Its narrow profile and Ultra Thin Bezel suit living rooms, media rooms and feature walls where a conventional speaker footprint simply won't do, while THX Select2 certification means it's equally at home as a dedicated surround or centre channel in a calibrated cinema system.\u003c\/p\u003e\n\u003ch3\u003eWhy we like it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTHX Select2 certification guarantees accurate, cinema-grade tonal balance\u003c\/li\u003e\n\u003cli\u003eKEF's renowned Uni-Q driver array delivers a single point source for consistent sound across the room\u003c\/li\u003e\n\u003cli\u003eUltra Thin Bezel design virtually disappears into the wall once painted\u003c\/li\u003e\n\u003cli\u003eFlexible vertical or horizontal mounting makes it a genuine LCR solution\u003c\/li\u003e\n\u003cli\u003ePaintable grille for a completely seamless decorative finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation notes\u003c\/h3\u003e\n\u003cp\u003eThe Ci4100QL-THX requires a rectangular cut-out of 476 x 114mm and a mounting depth of 76mm, with an overall product depth of 81mm, so check wall cavity depth before installation. It pairs well with a multichannel AV amplifier for home cinema use, or a Sonos Amp\/WiiM Amp for simpler multi-room setups, given its 4 ohm impedance and 10-150W recommended power handling.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Impedance\u003c\/td\u003e\n\u003ctd\u003e4 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e89dB (2.83V\/1m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e55Hz - 28kHz (±6dB), open-backed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrossover Frequency\u003c\/td\u003e\n\u003ctd\u003e2.2kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrive Units\u003c\/td\u003e\n\u003ctd\u003eLF: 3 x 100mm (4in), MF: 100mm (4in), HF: 19mm (0.75in) Uni-Q\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Amplifier Power\u003c\/td\u003e\n\u003ctd\u003e10-150W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Dimensions (H x W x D)\u003c\/td\u003e\n\u003ctd\u003e490 x 128 x 81mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCut-Out Dimensions (H x W)\u003c\/td\u003e\n\u003ctd\u003e476 x 114mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Depth\u003c\/td\u003e\n\u003ctd\u003e76mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e3kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"KEF","offers":[{"title":"Single","offer_id":55348792557907,"sku":"Ci4100QL","price":400.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1115\/1323\/9891\/files\/900x900_ci4100ql_1_1_dd29bfe0-60f1-43ee-a01a-7e2718f2bb0d.jpg?v=1791895670"}],"url":"https:\/\/www.ceiling-speakers.co\/collections\/kef-ci-thx-series.oembed","provider":"Ceiling Speaker Warehouse","version":"1.0","type":"link"}