Features 2″ (51 mm) Voice Coil Neodymium M-Ring Magnet Assembly Optimized for High Output SQ Sound Systems Weather Resistant Carbon Fiber Cone with Rubber Surround Custom Aluminum Basket with Radial Venting Specifications Power Handling: 300 Watts Dynamic Wattage: 600 Watts Resonant Frequency (fs): 57.62 Hz D.C. Voice Coil Resistance (Re): 3Ω Mechanical Quality Factor (Qms): 2.81 Electrical Quality Factor (Qes): 0.68 Total Quality Factor (Qts): 0.553 Compliance Equivalent Volume (Vas): 8.60 L Me