BOSS Audio BE464 250 Watt (Per Pair), 4 x 6 Inch, Full Range, 4 Way Car Speakers (Sold in Pairs) Impedance: 4 Ohms, Frequency Response: 100 Hz - 16 kHz, Sensitivity: 90 dB Cone: Polypropylene, Voice Coil: 1 Inch Aluminum Surround: Rubber, Basket: Stamped 2 Piezo Tweeters Per Speaker Included: Grills Dimensions: Depth 5.3 x Width 5.3 x Height 2.3, Weight Per Pair: 2.8 Lbs. 3 Year Platinum Online Dealer Warranty