6.5-Inch 200 Watts Coaxial Speaker System with additional voice coil ventilation for increased power handling and EXP pole core technology for maximum excursion and lower harmonic distortion. General: Cone Material: Injected PP. Surround: Rubber Tweeter: PEI Neodymium Magnet Frequency Response: 60-22,000 Hz. Sensitivity: 92dB. Mounting Depth: 56mm. Diameter: 165mm. Impedance: 4 Ohms Designer grilles