Klipsch KHC-6 In-Ceiling Loudpeakers (Pair, White) A pair of in-ceiling loudspeakers that is an excellent choice for distributed-music systems Equipped with 6.5" Injection-molded woofer and 1" Aluminum dome tweeter Exclusive 360-degree rotating tractrix) Horn technology Frequency response: 50Hz - 20kHz &#65533; 3dB Drivers sonically match All Synergy Series models