The dual 5.25-inch Cerametallic woofers of the Klipsch KS-7502-THX speaker deliver optimum bass in a closed in tuned-port room. The Dual 1-inch titanium horn-loaded tweeters of this Klipsch architectural speaker manage to provide clean and crisp highs. The 45Hz-20kHz +/-3dB frequency response of this Klipsch speaker allows you to set it to a lower level for a rich bass. With the 93dB @ 2.83V / 1m sensitivity of the Klipsch KS-7502-THX speaker offers astonishing audio quality. With 8 ohms of nominal impedance, this Klipsch architectural speaker provides loud sound even from a low power device. The 2500Hz high freq crossover of this Klipsch speaker offers distortion-free sound.