DESC: Niles once again raises the bar. With our first OS Indoor/Outdoor models we revealed a radical new understanding of loudspeaker capabilities. Niles original OS Indoor/Outdoor loudspeakers are constantly praised for their ability to deliver exemplary reliability and outstanding sound quality. These attributes have made Niles OS Indoor/Outdoor loudspeakers the best selling loudspeakers in their class. Woofer Technology Integrated woofer/baffle assembly increases cone area to provide powerful bass output 7 interlaced carbon fiber cone is extremely rigid to reduce breakup and lower distortion Butyl rubber cone surround damps resonance and provides exceptional durability Dispersion stabilizer distributes midrange tones for clear off-axis sound Tweeter Technology 1 tri-laminate Teteron dome with fluid-cooling and ultra-wide dispersion for clear and detailed high-frequencies Patent Pending Integrated Woofer/Baffle Assembly Increases the woofer cone-area to cabinet-width ratio for enhanced bass output Interlaced