B & C Speakers 12NW76 12 in. Woofer with 8 ohm Impedance & 1000W Neodymium Ring Magnet

Winding Depth - Mm In: 19.0 0.75, Voice Coil Diameter - Mm In: 76 3.0, Cone Shape: Exponential, Surround Shape: Triple Roll, Former Material: Glass Fibre Magnetic Gap Depth - Mm In: 11.0 0.43, Flux Density - T: 1.3, Spider Type: Single, Pole Design: T-Pole Country Of Origin :China Package Weight :13.0Lbs Frequency Response: 40 - 2000 Hz, Sensitivity 1W/1M: 98.5 Db, Nominal Impedance: 8 Ohms, Minimum Impedance: 6.9 Ohms, Winding Material: Copper