Features 5.25" 2-Way Speaker 45/90 watt 1/2" PEI Dome Tweeter Polypropylene Cone Rubber Surround 1" High Temperature Voice Coil Rigid Stamp Steel Basket Mesh Grill Included Specifications Frequency Response: 55Hz-20KHz Impedance: 4Ω 94mm mounting diameter 42mm mounting depth Description Product Manual