Powerbass S402 4-Inch Coxial OEM Speakers 90 Watts peak power handling 4-Ohm nominal impedance and 85db efficiency Paper cone woofer with DDC coating - Dynamic Damping Coating 80Hz - 20Khz Frequency Response Mounting depth 1.625" driver cutout is 3.125" Includes speaker wire mounting hardware application guide PowerBass decal Removable mounting tabs fit both standard 4-Inch and Toyota style 4-Inch locations 160Watts peak power handling 4-Ohm Nominal impedance 86db efficiency 2 - 4-Inch 2-way speakers with mesh grille Kit includes mesh wire grills speaker wire mounting hardware application guide and PowerBass decal DDC treated paper cone 0.075inch woofer pure silk dome tweeter