Ultra Thin Design Top Mount, Grill is Built Onto Speaker, 5.25 " Full Range Speakers, Dual Cone for Extended High Range Response, 100 Watts Peak Power, Air Suspension Design, 20 oz.Circuit Magnet, Frequency Response:100-18kHz, 4 Ohm Impedance, Complete with Mounting Kit, Wires & Grills, Mounting Depth:1.50 "