{"product_id":"kef-ci250rrb-thx-10-inch-thx-in-ceiling-subwoofer","title":"KEF Ci250RRb-THX 10\" THX In-Ceiling Subwoofer","description":"\u003cp\u003eThe KEF Ci250RRb-THX is an in-ceiling subwoofer for home cinemas and music systems where a floor-standing sub isn't wanted. An extra-long-throw 10in driver with a 150oz magnet delivers deep, low-distortion bass down to 20Hz, and it matches the Ci250RRM-THX in size and finish.\u003c\/p\u003e\n\u003ch3\u003eWhy we like it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eExtra-long-throw 250mm (10in) driver with a 150oz magnet\u003c\/li\u003e\n\u003cli\u003eBass down to 20Hz (±6dB) with 109dB maximum SPL\u003c\/li\u003e\n\u003cli\u003eSame 300mm cut-out and look as the Ci250RRM-THX for a matching ceiling\u003c\/li\u003e\n\u003cli\u003ePart of KEF's Extreme Home Theatre range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation notes\u003c\/h3\u003e\n\u003cp\u003eThe Ci250RRb-THX needs a 300mm round cut-out and 147mm mounting depth from the surface. KEF recommends an ideal rear volume of 140 litres (70 litres minimum). It is a passive subwoofer driven by KEF's DSP-equipped KASA500 amplifier, which is sold separately.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e20Hz - KASA setting (±6dB), open-backed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrive Units\u003c\/td\u003e\n\u003ctd\u003eLF: 250mm (10in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum SPL\u003c\/td\u003e\n\u003ctd\u003e109dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmplifier\u003c\/td\u003e\n\u003ctd\u003eKEF KASA500 (sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Dimensions\u003c\/td\u003e\n\u003ctd\u003eDiameter 346mm; Depth 153mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCut-out Diameter\u003c\/td\u003e\n\u003ctd\u003e300mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Depth from Surface\u003c\/td\u003e\n\u003ctd\u003e147mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e5.6kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"KEF","offers":[{"title":"Single","offer_id":55536896442707,"sku":"Ci250RRb-THX","price":1099.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1115\/1323\/9891\/files\/kef-ci250rrb-thx-10-inch-thx-in-ceiling-subwoofer-1-grille-detail.jpg?v=1792501763","url":"https:\/\/www.ceiling-speakers.co\/products\/kef-ci250rrb-thx-10-inch-thx-in-ceiling-subwoofer","provider":"Ceiling Speaker Warehouse","version":"1.0","type":"link"}