PowerBass S-412 4 x10-Inch Coaxial 2-Way Speaker Set (Pair) Removable mounting tabs fit both standard 4" and Toyota style 4" locations 160Watts peak power handling 4-Ohm Nominal impedance 86db efficiency 2 - 4" 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 Hard to fit 4x10-Inch size isoriginal replacement for many older GM sedans and SUV's 0.75-Inch pure silk dome tweeter and woofer with DDC coating 150 Watts peak power handling frequency repsonse 58Hz - 20Khz 4-Ohm nominal impedance Mounting depth 2.375 inch mounting depth Includes speaker wire mounting hardware application guide PowerBass decal