Experience room-filling, detailed audio with Polk's Vanishing Series 80 F/X-LS In-Ceiling Surround Speakers that hide away in your ceiling and yet produces extraordinary sound quality for your movies, music, and TV shows. Each speaker is equipped with an 8" Dynamic Balance Driver, and dual 0.75" Ring Radiator Tweeter that delivers smooth, detailed highs and accurate lows for an unparalleled musical experience. Featuring dual-ported bandpass enclosure, the loudspeakers offer deep, impactful bass and minimize resonances for crystal clear audio output. The 80F/X-LS is equipped with the Vanishing Wall Distance Toggle switch that helps to tune out the boominess, without sacrificing the deep bass response of the speaker. Pair them with the Vanishing LS Series center channel and in-wall speakers, or Polk's traditional floor-standing and bookshelf stereo speakers, to build a complete 5.1 or 7.1 channel home theater setup. The rotating cam stabilization 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.