Kenwood KFC-1666S 6.5 inch 300 Watt 2-Way Car Audio Door Coaxial Speakers 4

B Technical Specifications: System: 2 Ways Coaxial Impedance :4 Peak Input Power W:300W Sensitivity d – B at 1m:90d – B Frequency Response Hz:40-22000Hz Diaphragm: PP Silver Size:6.5in Surround: Cloth Magnet: Ferrite Diaphragm: Balanced Dome Size: 1 in. Magnet Material: Neodymium Cutout Diameter:4-7/8 in. Tweeter Height:5/16 in. Mounting Depth:1-11/16 in. – P65Warnings.ca.gov