The Faital Pro 5FE100 4Ω 5-Inch Professional Woofer is a 130 mm loudspeaker driver with a nominal impedance of 4 Ohm. It provides 80 W AES power handling, 160 W maximum power handling, 87 dB sensitivity and a 63÷6300 Hz frequency range. The driver uses a 32 mm voice coil with Cu winding, a Kapton former, a ferrite ring magnet and a steel basket. Its 114 mm baffle cutout diameter and 71.5 mm depth support enclosure design and replacement planning.