Specifications Size: 10″ RMS/Peak Power: 200/400 watt Frequency Response: 32-800Hz SPL @1W/1m: 86 dB Impedance: 2 OHM DVC Mounting Depth: 124 mm Voice Coil: 1.5″ VC Magnet : 49 Oz Features High Temp KSV Voice Coil Linear motion spider Stamp Steel Basket Polypropylene Mica Cone All natural rubber surround