SPECIFICATIONS Diameter : 12 Inch Sensitivity : 85 dB Impedance : 4 Ohm Frequency Response : 36-500 Hz RMS Power Range : 250 Watts Peak Power Handling : 500 Watts Mounting Depth : 5.875 Inches FEATURES Features: New PBX dust cap Dual 4 ohm voice coils New Polycarbonate Glass Fiber Basket Marine Grade 12" Subwoofer White powder coated aluminum grill included Injection Molded UV-Treated White Polypropylene Cone TPO Thermoplastic Polyurethane Surround 2.0" KSV Voice Coil Former 120 oz. Motor Structure Insulated Tinsel Leads Marine Grade Spider 250 Watts RMS/500 Watts Max Designed for FREE AIR applications and Sealed Enclosures Specifications Nominal Impedance: 4-ohm + 4-ohm BL: 8.859 Inputs: Dual Coil Subwoofer Frequency Range: 36 Hz - 500 Hz Voice Coil Size: 2 in Material: Polypropylene Magnet Size: 140 oz Sensitivity (1W / 1M): 85.86 dB Motor Structure: 39 oz Cutout Diameter: 11 in Mounting Depth: 5.875 in Xmax: 7.9 mm Spl: 85 dB No: 0.234% Qts: 0.682 Qes: 0.763 Qms: 6.429 Mms: 172.7 g Cms: 125 uM/N Vas: 46.09 Ltr SD: 510.7 sqCM Fs: 34.3 Hz Test Impedance: 1.61 ohm VC Impedance: 4-ohms Size: 12" Sensitivity: 85 dB Frequency Response: 36 Hz - 500 Hz Voice Coil Size: 2" Power Handling (RMS/Peak): 250 / 500 watts UPC: 823871008322 Weight: 14 Authorized Internet Dealer Warranty: 2 Year(s) Warranty.This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization. Do you own this product? Write a review!