The Ci5160RL-THX is crafted with a massive aluminium baffle to eliminate vibration and is the perfect platform for the 160mm aluminium cone Uni-Q with tangerine waveguide, and four 160mm woofers. Capable of bi-wire and bi-amplifier connections the Ci5160RL-THX delivers on the performance promise of all KEF R Series speakers. 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.