Cones Made From Carbon And Mica-reinforced Injection-molded Polypropylene Elastic Polymer Surrounds Ferrite Magnets Glass Imide Voice Coil Bobbin. 300-watt Maximum, 50-watt Rms Power Output 4 Ohms Impedance Designed To Replace Existing, Older Oem Speakers Or Add New Ones To Enhance A Vehicle’s Audio System matching With Pioneer Carsoundfit In-car Sound Simulator App Frequency Response: 42 Hz To 58 Khz Sensitivity: 90 Db Crossover Frequency: 3.35 Khz 5-1/4-in
