KICKER KS-Series Speakers let you play at concert-like volume, yet maintain the smoothness and subtlety to please even the most selective ear. The high-performance woofers utilize internally dampened polypropylene cones and tough rubber surrounds for outstanding midrange detail and pounding bass! Completely redesigned with new cones, voice coils and crossovers, KS-Series Coaxial Speakers are a serious upgrade from your factory sound. Featuring zero (or minimal) tweeter protrusion, you get a perfect fit in almost every vehicle on the road today, without modifications. Kicker 47KSC4604 KS Series 4x6" Coaxial Speakers With .5" Tweeters, 4ohm KICKER’s elite KS-Series Coaxial Speakers upgrade your audio to new levels of accuracy with extended frequency response and the smoothest highs. 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 one millimeter of tweeter protrusion, the KSC460 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]: 4x6, 100x160 Tweeter [in, mm]: ½, 13 Rated Impedance [Ω]: 4 Recommended Amplifier Power [Watts RMS]: 75 Sensitivity [1W, 1m]: 88 Frequency Response [Hz]: 50-20k Mounting Hole Diameter [in, mm]: 4x5-5⁄16, 101x151 Top Mount Depth [in, mm]: 1-11⁄16, 44 Bottom Mount Depth [in,mm]: 2, 51 Tweeter Protrusion [in,mm]: 1/16, 2 Grilles: No Tweeter Magnet Material: Neodymium Tweeter Dome Material: Silk Woofer Cone Material: Polypropylene Woofer Surround Material: Rubber