DS18  PRO-DR250 300 Watts Phenolic Diaphragm Driver Unit 300 Watts Max Power and 200 Watts RMS Power Die Cast Aluminum Basket with CNC, 13 Oz High-Strength Ferrite Magnet 2.03" High-Temperature Kapton Voice Coil 8-Ohms Impedance and 114dB of Sensitivity Frequency Response of 160K-8KHz