Potent Performance KICKER KS-Series Speakers let you play at concert-like volume, yet maintain the smoothness and subtlety to please even the most selective ear. Internally dampened polypropylene cones and durable rubber surrounds assist the woofers in creating precise midrange and midbass, while high-quality silk-dome tweeters deliver natural, detailed highs. With less than a 2-inch mounting depth and zero tweeter protrusion, the KSC40 is a perfect fit in almost every vehicle on the road today. They work best with 15 to 75 watts of recommended power. See below for more details. High power handling Silk-dome tweeters for a smooth sound Polypropylene woofer and tough rubber surrounds Thin-mount design easily fits behind factory grilles Specifications Speaker Design 2-Way Woofer [in, mm] 4, 100 Tweeter [in, mm] ½, 13 Rated Impedance [?] 4 Recommended Amplifier Power [Watts RMS] 15-75 Sensitivity [1W, 1m] 88 Frequency Response [Hz] 60-20k Mounting Hole Diameter [in, mm] 3-11?16, 94 Top Mount Depth [in, mm] 1-13?16, 46 Bottom Mount Depth [in,mm] 2-1?16, 51 Tweeter Protrusion [in,mm] 0, 1 Grilles No Tweeter Magnet Material Neodymium Tweeter Dome Material Silk Woofer Cone Material Polypropylene Woofer Surround Material Rubber Manuals 2024 KSC Series | Multilingual | Download Do you have a different model? Click Here