6-1/2" G Series Car Coaxial Speakers Power Handling: Peak: 360 watts per pair / 180 watts each RMS: 60 watts per pair / 30 watts each Injection molded polypropylene cone woofer Treated cloth surround 1" PET (polyethylene terephthalate)balanced dome tweeter Frequency response: 45-25,000 Hz 4 ohms impedance Ferrite magnet structure Top-mount depth: 2-1/8"