2" Titanium Diaphragm " Short Horn" Compression Driver 640 watts max 320 watts RMS 35 Oz. high strength ferrite magnet 2.03" wire voice coil Frequency response: 630 Hz - 20 KHz Recommended Hi-Pass Crossover: 900Hz 8 Ohm Impedance Titanium Diaphragm Sensitivity: 111dB Baffle cutout: 5.4" Mounting depth: 4.9" Throat diameter: 2" Sold Each