The Faital Pro HF1400 (8Ω) 1.4-inch High-Frequency Driver is a high-frequency driver with a 1.4-inch diaphragm and 8 Ohm nominal impedance. It provides 100 W AES power above 0.9 kHz and 110 dB sensitivity. The driver uses a titanium dome diaphragm, annular phase plug and neodymium ring magnet. Its frequency range is 0.5÷18 kHz, with a minimum crossover frequency of 0.9 kHz.