FAITAL PRO HF146-8 1.4-inch Bolt On Driver 109db Professional Audio Equipment Lineup Compression Drivers 80-Watt Rms 160-Watt Max || The FAITAL PRO HF146-8 is a high-frequency compression driver that is part of the professional audio equipment lineup. It's designed to deliver clear and powerful high-frequency sounds, suitable for high-end audio systems || NOMINAL SPECIFICATIONS || Throat Diameter : 35.6 mm (1.4 in) || Overall Diameter : 123 mm (4.84 in) || 90° Mounting Holes Diameter (4xM6) : 102 mm (4.02 in) || Depth : 63.5 mm (2.5 in) || Net Weight : 2 kg (4.4 lb) || Shipping Box (Single carton box) : 185 x 170 x 122 mm (7.3 x 6.7 x 4.8 in) || Shipping Weight : 2.3 kg (5.1 lb) || || TECHNICAL PARAMETERS || Nominal Impedance : 8 Ohm || Minimum Impedance : 6.8 Ohm || AES Power above 0.9 kHz (1) : 80 W || AES Power above 0.65 kHz : 40 W || Maximum Power above 0.9 kHz (2) : 160 W || Maximum Power above 0.65 kHz : 80 W || Minimum Crossover Frequency (3) : 0.9 kHz || Sensitivity (1W/1m) (4) : 109 dB || Frequency Range : 0.7÷18 kHz || Voice Coil Diameter : 65 mm (2.56 in) || Winding Material : Al || Former Material : Kapton || || TECHNICAL PARAMETERS || Diaphragm Material : Ketone Polymer || Diaphragm Shape : Dome || Winding Depth : 3 mm (0.12 in) || Magnetic Gap Depth : 4.2 mm (0.17 in) || Flux Density : 1.7 T || Magnet : Neodymium Slug Crown || Re : 5.5 Ohm || Phase Plug Design : Annular || Exit Angle (5) : 29° Conical || NET Air Volume filled by HF Driver : 0.55 dm^3 (0.019 ft^3) || || Brand : FAITAL PRO || Model Number : HF146-8 | HF146 || UPC : 810130951499 || PART NUMBER (P/N) Push Terminals - 8 Ohm Version : 00654142 || || NOTES || Driver mounted on FaitalPRO LTH142 Horn || (1) 2 Hours Test According to AES 2-1984 Rev. 2003 || (2) Maximum power is defined as 3dB greater than nominal power || (3) 12 dB/oct or higher slope high-pass filter || (4) Averaged within the frequency range || (5) The phase plug is recessed from the driver's exit which is at the end of a conical adaptation horn"