The standards of architectural speakers have been reset forever. We introduce the in-wall KEF Ci5160REF-THX - the newest addition to THE REFERENCE family, meeting KEF’s standards for Extreme Theatre as well as THX Ultra Certification. The KEF Ci5160REF-THX is built to the same exacting standards as the KEF Reference models. And like all REFERENCE speakers, the Ci5160REF comes with the REFERENCE Build Certificate signed by the craftsman who built it.