The CM-EZ-II is a two-way, blind-mount, in-ceiling speaker. The CM-EZ-II speaker design incorporates an 8-inch polypropylene driver with rubber surround and a 7.3 liter steel backcan for extended frequency response (54 Hz to 22 kHz, - 10 dB). SoundTube’s integrated CM-EZ-II design includes unique and patented blind-mount Snap Cam installation technology and a 21-gauge steel tile bridge ensuring rapid and secure installation in any drop-tile ceiling. For easy ordering, stocking and installation, the CM-EZ-II comes with a six-position tap switch for 25-, 70.7- and 100-volt modes with transformer bypass position position.