QS Series 6.75" Coaxials The QSC drivers includes a revolutionary 25mm Teteron® dome tweeter and custom wave guide for near perfect phase alignment for smooth frequency response. The injection-molded Polypropylene cone is impregnated with carbon-fiber for tight, accurate midrange. An NBR rubber surround provides superior damping, and complemented by KICKER’s signature blue double surround stitching. The independent 18dB crossover has been optimized for size, and features built-in tweeter protection. Utilizing Metallized Polypropylene capacitors, high-powered resistors and audiophile-grade air-core inductors, the crossover delivers outstanding overall sound quality and easy mounting in a door or under a seat. These QSC speakers work best with 100 watts of recommended power. See below for more details. | Speaker Size 6.75" Design 2-Way Tweeter Design 1" Dome Impedance (Ohms) 4 Tweeter Composition Teteron Woofer Composition Kevlar impregnated Polypropylene Woofer Surround Rubber Sensitivity (dB) 86dB Frequency Response (Hz) 40-20k Hz RMS Power Rating (Watts) 100 Peak Power Rating (Watts) 200 Top-mount Depth (Inches) 2 9/16 Bottom-mount Depth (inches) 2 13/16 Cutout Diameter (inches) 5 5/8 Grilles Included Yes Warranty 1-Year