Experience room-filling, detailed audio with Polk's Vanishing Series 700-LS In-Ceiling Loudspeaker that hides away in your ceiling and yet produces extraordinary sound quality for your movies, music, and TV shows. It is equipped with a 2.5" Dynamic Balance Driver, a 5" x 7" Dynamic Balance Cassini Oval Woofer and a 0.75" Ring Radiator Tweeter that delivers smooth, detailed highs and accurate lows for an unparalleled musical experience. Featuring dual-ported bandpass enclosure, the loudspeaker offers deep, impactful bass and minimizes resonances for crystal clear audio output. On the front panel, it has a reflective room compensation control switch that digitally compensates for harsh reflective surfaces, such as smooth walls, glass windows, and hardwood floors for a smooth audio quality. Pair with Vanishing LS Series center channel and in-wall speakers or use in a 5.1 or 7.1 channel home theater setup with Polk's traditional floor-standing or bookshelf stereo speakers. The rotating cam stabilizing system allows for quick and easy installation, while the paintable wafer-thin Sheer-Grille makes the loudspeaker virtually indistinguishable from its surrounding. All LS speakers can be installed in new or existing constructions using optional mounting brackets.