Features 12″ Carbon Fiber Ferrite Woofer 3″ voice coil Die-Cast Aluminum Basket Large Gauge Compression Terminals Foam Surround Ferrite Magnet Weather Resistant Carbon Fiber Cone PVC gasket Dual 2Ω 8 Layer Voice Coil Specifications Power Handling: 1250 Watts Dynamic Wattage: 2500 Watts Frequency Response (FS): 37.724 Hz Impedance (RE): 1.8Ω+1.8Ω QMS: 2.208 QES: 0.573 QTS: 0.455 VAS: 22.720 L CMS: 56.759 mm/N BL: 21.614 N/A MMS: 313.590 g Sensitivity (1w/1m) (SPL): 85.2 dB X-MAX: 24 mm DIMENSIONS