The Faital Pro 4FE35 4Ω 4-Inch Professional Woofer is a 100 mm loudspeaker driver with a nominal impedance of 4 Ohm. It provides 30 W AES power handling, 60 W maximum power handling and 91 dB sensitivity at 1W/1m. The driver has a 90÷20000 Hz frequency range, a Ferrite Ring magnet, a Steel basket and a Copper Cap for demodulation. Its baffle cutout diameter is 91.5 mm and its depth is 49.8 mm.