Product details:

Impedance: 8 ohms Power Rating: 30W Maximum Power: Frequency Response: 70Hz-5.5k Hz Voice Coil Diameter: 1.75" 44.45mm Depth: 5.95" 151.1mm Coil Contruction: Copper Voice Coil Magnet Composition: Alnico magnet Cone composition: Seamed Paper Cone Nominal Basket Diameter:12" 304.8mm Sensitivity: 101.3 Magnet Weight: 35 oz. Core Details: Coil Former: Paper former