Faital Pro 4FE42 4 Ohm (Ω), 4-Inch Professional Woofer
The Faital Pro 4FE42 is a compact professional woofer for loudspeaker designs that need clear output from a small driver. Its 93 dB sensitivity, 40 W AES power handling and 100–20,000 Hz frequency range give designers useful performance figures. Meanwhile, the 4 Ohm impedance keeps electrical planning straightforward.
Compact dimensions, straightforward installation
Firstly, with a 100 mm nominal diameter, 91.5 mm baffle cutout and 54.1 mm depth, this driver is easy to plan around in compact enclosures. The 115.26 mm bolt circle and 129.85 mm overall diameter provide key mounting measurements. Whatever is needed to lay out a suitable baffle accurately.
Efficient output from a lightweight motor
Moreover, the 93 dB sensitivity makes good use of available amplifier power. Meanwhile, the neodymium ring magnet keeps the motor construction focused and the net weight to 390 g. A 25 mm voice coil, aluminium winding material and Kapton former complete the specified moving assembly.
Built for controlled driver operation
Faital Pro specifies 40 W AES power handling and 80 W maximum power handling, giving a clear basis for amplifier and enclosure planning. Copper cap demodulation, a half-roll cone surround and a constant-height wave spider profile describe the driver’s specified construction.
Useful parameters for enclosure design
The Thiele and Small parameters give builders the figures needed to model the driver in an enclosure. Values including Fs, Qes, Qms, Qts, Vas, Sd and Xmax describe its electrical and mechanical behaviour, making the published data useful when refining a design around this 4 Ohm woofer.
Key Features
- Compact 100 mm driver format for space-conscious loudspeaker designs
- 93 dB sensitivity for efficient use of amplifier power
- 40 W AES and 80 W maximum power handling
- Neodymium ring magnet with copper cap demodulation
- Detailed Thiele and Small parameters for enclosure planning