The state-of-the-art, three-way 10″ H310C in-ceiling speaker was specifically designed to exceed the demands of other in-ceiling speakers! It incorporates a pivoting 1″ liquid-cooled titanium dome tweeter, 2 1/2″ pivoting woven fiber midrange, and a heavy duty 10″ woven fiber woofer with a high power magnet. The majority of all other in-ceiling speakers do not include a midrange and/or 10″ woofer. Some in-ceiling speakers offer dual tweeters which only duplicate high frequencies, but cannot reproduce midrange frequencies. Not only is the H310C capable of reproducing the mids lost in other in-ceiling models, it’s heavy duty 10″ woofer enables this speaker to deliver low frequencies down to 24Hz (+/- 3dB). This is an extremely rare find from an in-ceiling speaker!