Polk Audio DB 460 4-by-6-Inch Coaxial Speakers (Pair, Black) Pair of marine-certified coaxial speakers suitable for use in cars, trucks, boats, and other vehicles One 4x6-inch polymer/mica composite cone woofer and one 0.75-inch silk/polymer dome tweeter per speaker Frequency response: 75 Hz to 22 kHz Peak power handling of 120 watts (40 watts continuous) Requires mounting diameter of 4x6-inches and depth of 1.81-inches