High Frequency Driver w/2.0-in Throat Diameter w/8 Ohms Impedance & Titanium Diaphragm & 220 Watts Continuous Power Handling Capacity & Ferrite Magnet * Throat Diameter - mm (in): 50 (2.0) * Continuous Power Handing Capacity: 220 Watts * Magnet Material: Ferrite * Frequency Response: 1 - 18 Hz * Sensitivity (1W/1m): 107.5 dB * Nominal impedance: 8 Ohms * Recommended Crossover: 0.8 * Overall Diamter - mm (in): 180 (7.1) * Voice Coil Diameter - mm (in): 75 (3.0) * Diaphram Material: Titanium * Depth - mm (in): 87 (3.4) * Net Weight - mm (lbs): 6.3 (13.9)