Audac CELO2I/W High End Ceiling Speaker (White) - 2"The CELO series is AUDACs high end, slim ceiling speaker series, comprising different models which can guarantee an optimal experience for every situation and application. The ultra compact size enables the CELO2 to smoothly integrate into any interior like no other loudspeaker. The outer diameter only measures 118 mm, which is as compact as a standard down lighter and the built in depth of 95 mm allows installation in any ceiling while being