Maximum Power: 200W Frequency Response: 81Hz-5.5kHz Voice Coil Diameter: 1.5", 38.1mm Depth: 2.8", 71mm Coil Construction: Copper voice coil Magnet Composition: Ferrite magnet Cone composition: Paper Cone Nominal Basket Diameter:6.5", 165mm Sensitivity: 93.3 Magnet Weight: 20 ounce Core Details: Vented and extended core Coil Former: Polyimide former