Ci200RR-THX is an in-ceiling LCR capable of delivering a magical musical theatre experience even in the largest of rooms. For the ultimate in Extreme Home Theatre, the formidable new Ci R Series has the jaw-dropping acoustic capabilities of the classic KEF floorstander it's named after, with all the drama and emotional intensity of full theatre sound quality. The Ci R Series consists of an in-ceiling speaker that can be combined with one of two in-wall models, and a sensational new powered subwoofer. As you might expect, its towering performance sets a new standard for custom installed speakers. With a 38mm(1.5inch) tweeter voice coil coupled to a vented aluminium dome with tangerine waveguide, and a woofer with absolutely massive magnet and Z-flex surround, the KEF Ci200RR-THX is an in-ceiling LCR capable of delivering a magical musical theatre experience even in the largest of rooms.