{"product_id":"kef-ci250rrm-thx-in-ceiling-speakers","title":"KEF - Ci250RRM-THX - In-Ceiling Speakers","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe Ci250RRM-THX is a round, three-way coaxial in-ceiling speaker from KEF's Ci-R Series and KEF's first architectural speaker with Metamaterial Absorption Technology (MAT). It is THX Certified Ultra and is designed for large home theatres and living rooms.\u003c\/p\u003e\u003cp\u003eA 100 mm 12th generation Uni-Q array sits in front of a 250 mm bass driver, using KEF's Cavity Radiation Control open-back midrange and a Low Diffraction LF Aperture to manage the coaxial three-way layout.\u003c\/p\u003e\u003ch2\u003eDrivers and Technology\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eThree-way coaxial design: 250 mm (10 in.) LF driver with a 100 mm Uni-Q midrange and 19 mm vented aluminium dome tweeter\u003c\/li\u003e\n\u003cli\u003eMetamaterial Absorption Technology behind the tweeter, which KEF rates as absorbing 99% of unwanted rear sound\u003c\/li\u003e\n\u003cli\u003eCavity Radiation Control (patent pending) open-back midrange with absorptive foam\u003c\/li\u003e\n\u003cli\u003eLow Diffraction LF Aperture with absorptive foam ring\u003c\/li\u003e\n\u003cli\u003eBass extension to 20 Hz (-10 dB) and maximum SPL of 111 dB, as rated by KEF\u003c\/li\u003e\n\u003cli\u003eTHX Certified Ultra\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIn-ceiling mounting, 300 mm round cut-out\u003c\/li\u003e\n\u003cli\u003eMounting depth from surface 168 mm, ceiling thickness 6 to 30 mm\u003c\/li\u003e\n\u003cli\u003eIdeal rear volume 150 L, minimum rear volume 80 L\u003c\/li\u003e\n\u003cli\u003eUltra-Thin Bezel (UTB) with paintable magnetic grille\u003c\/li\u003e\n\u003cli\u003eIP64 splash and dust 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\u003eThree-way coaxial in-ceiling speaker, Ci-R 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: 250 mm (10 in.)\u003cbr\u003eMF: 100 mm (4 in.) Uni-Q\u003cbr\u003eHF: 19 mm (0.75 in.) vented aluminium dome with Metamaterial Absorption Technology\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response (±6 dB, open-backed)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e28 Hz - 20 kHz\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\u003e20 Hz - 45 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCrossover Frequencies\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e540 Hz, 2.6 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensitivity (2.83 V\/1 m)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e89 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal Coverage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum SPL (at 1 m)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e111 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\u003e50 - 250 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecommended High-Pass Filter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 - 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e346 mm diameter x 175 mm depth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCut-Out Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300 mm diameter\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\u003e168 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Thickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 mm minimum, 30 mm maximum\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\u003e150 L \/ 80 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 kg\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUnit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSold individually\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"KEF","offers":[{"title":"Default Title","offer_id":50715352498433,"sku":"SP4023AA","price":4000.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1133\/9398\/files\/KEF-Ci250RRM-THX-In-Ceiling-Speakers-australia.jpg?v=1791952367","url":"https:\/\/sydneyhifimonavale.com.au\/products\/kef-ci250rrm-thx-in-ceiling-speakers","provider":"Sydney Hi-Fi Mona Vale","version":"1.0","type":"link"}