Sony Xplod Xs-R series XS-R6944 6"x9" 600 Watt 4-Way 4 Ohm Car Speakers With Low DistortionFeatures: The Xs-R series by Sony Xplod 4-Way Xplod Series Coaxial Car Speakers Peak Power Output: 600 Watts per pair / 300 Watts each RMS Power Output: 100 Watts per pair / 50 Watts each Clean Sound With Low Distortion Amazing-Sounding highs with built-in tweeters and super-tweeters Size : 6x9" (Inches) Frequency Output: 25 Hz - 35 kHz Sensitivity :93 dB Impedance: 4 ohm Tweeter Design: Dome Bottom-mount depth: 3-1/8" Top-mount depth: 3" HOP (Highly Oriented Polyolefin) Woofer Cone Cloth surround 1-7/46" PEN (Polyethylene Naphthalene) 7/16" Dome tweeter 5/16 Dome super tweeter High Energy Ferrite and Neodymium magnets