Impedance: 4 Ohms Frequency Response: 80 Hz - 20 kHz Sensitivity: 89 dB\nCone: Polypropylene Voice Coil: 1 Inch Aluminum\nSurround: Treated Cloth Basket: Plastic\nOne 1 Inch Mylar Dome Tweeter Per Speaker\nIncluded: Grills and Magnet Covers\nDimensions: Depth 6.3 x Width 6.3 x Height 3.3 Weight Per Pair: 3.4 Lbs.\n3 Year Platinum Online Dealer Warranty\n