BOSS Audio NX524 300 Watt (Per Pair), 5.25 Inch, Full Range, 4 Way Car Speakers (Sold in Pairs) Impedance: 4 Ohms, Frequency Response: 85 Hz - 20 kHz, Sensitivity: 90 dB Woofer Cone: Poly Injection, Voice Coil: 1 Inch Aluminum Surround: Rubber, Basket: Cast Two Tweeters and One 1.25 inch Mylar Cone Midrange Per Speaker Included: Grills and Magnet Covers Dimensions: Depth 6 x Width 6 x Height 3, Weight Per Pair: 3.8 Lbs. 3 Year Platinum Online Dealer Warranty