Maximum Power: 600W Frequency Response: 48Hz-3.3kHz Voice Coil Diameter: 2", 50.8mm Depth: 5.94", 151mm Coil Construction: Aluminum voice coil Magnet Composition: Ferrite magnet Cone composition: Paper Cone Nominal Basket Diameter:15", 381mm Sensitivity: 98.6 Magnet Weight: 59 ounce Core Details: Vented core Coil Former: Polyimide former