PYLE-PRO PDB832 - 2" Titanium Horn Driver 8 Ohm 4-Bolt 2'' (50.8mm) Flat Aluminum Voice Coil - Titanium Diaphragm - 500 Watts RMS / 1000 Watts Peak 90 oz. Magnet Structure - 8 Ohm Impedance For Directivity Horns With Four M6 Threaded Holes 90 Around on a 4'' Diameter Circle Frequency Response: 800Hz~20kHz Sensitivity (1w/1m): 106dB SPL