Planet Audio Anarchy subwoofer series are designed to please the audiophile in each of us. Available in 8”, 10” and 12”, these dual 4 ? subwoofers produce clean, and powerful bass without breaking the bank. Dimensions: 9.5 x 15 x 15 inches Impedance: 4 ohms Mounting Depth: 7 inches, Mounting Hole: 13.9 inches Item Weight: 12 Lbs. Free Air Resonance: 25 Hz Sensitivity: 89 dB @ 1 Watt/1 Meter Polypropylene Cone, Stamped Basket Foam Surround, 2-inch Dual Voice Coil Planet Audio 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 MODEL NO - AC15D