• 300 watts max; 150 watts RMS; 4 ohm impedance;• Replaces tired blown or dead OEM 4 in. x 6 in. standard car speakers;• Black poly-injection cones 1 in. titanium cone midranges .75 in. piezo tweeters 1 in. high-temperature ASV voice coils 20 oz. magnet structures and non-fatiguing butyl rubber surrounds resist corrosion have low distortion and output powerful sound;• Dimensions without grille: 6.06 in. x 4.1 in. x 2.05 in.;• Dimensions with grille: 7.17 in. x 4.84 in. x 2.56 in.;• Mounting depth: 1.81 in. ;• Includes grilles wiring and mounting hardware;• Pair;