The Polk Audio LSi15 is a pure and powerful floor standing speaker that provides amazing sound quality. The 8-inch woofer of this Polk Audio stereo speaker delivers deep bass and outstanding low frequency response. You get smooth and clean highs with the 1-inch ring radiator tweeter in this Polk Audio home theater speaker. The dual 5-inch drivers of this Polk Audio stereo speaker give you superb midrange response. The Polk Audio LSi15 uses PowerPort technology that offers rich bass while eliminating unnecessary air chuffing. The cascade tapered array of this Polk Audio home theater speaker gives you wider diffusion of sound so that you get natural sound quality. The Polk Audio LSi15 has a frequency response of 22Hz - 27 kHz that gives you sharp sound at all levels.