Features 6.5" Weather Resitant Coaxial High Efficiency Loudspeaker 1" Aluminum Dome Tweeter Ultra Light Weight Treated Cone High Reaction Bi-Ribbed Treated Surround 1.5" High Temperature Voice Coil Protective Grills Included Specifications Power Handling: 250 Watts Dynamic Power Handling: 500 Watts Frequency Response: 75Hz - 20KHz Impedance: 4Ω Sensitivity: 99.6 dB DIMENSIONS Overall Diameter: 6.81"/ 145 mm Mounting Depth: 2.36"/ 60 mm Cutout Diameter: 5.71"/ 145 mm Description