Dimensions: 6.70 x 6.70 x 2 inches Item Weight: 2.51 Lbs. (pair) Impedance: 4 ohms Mounting Depth: 1.88 inches, Mounting Hole: 5.75 inches Frequency Response: 85 Hz to 18 kHz Sensitivity: 88 dB @ 1 watt/1 meter Poly Injection Cone, Rubber Surround, Stamped Basket 0.75 inch Tweeter, 1.25 inch Midrange Sound Storm Laboratories provides a powerful 3-year platinum online dealer warranty so long as the purchase is made through Amazon.com. We strongly encourage professional installation of this product to ensure proper and safe functionality