Power Handling (Peak) 1200W , Power Handling (Contin.) 600W , Freq. Response 12Hz- 350Hz , Efficiency (1 Watt/1 Meter) 95Db , Impedance Dual 4 Ohm , Magnet Structure 120 Oz. , Voice Coil Former 3-Inch , Mounting Depth 7-7/8-Inch * Diecast Aluminum Basket Non-Pressed Paper Cone 7-Layer High Density, Fat Rolled Foam Surround Dual Flat Spiders With Woven Tinsel Leads * Black Anodized Aluminum Voice Coil Former Insulated Lead Wires Exclusive Para-Term Connection System * 12-Inch Dual Voice Coil Subwoofer