FaitalPRO 4FE42-4F Full-range Woofer

The FaitalPRO 4FE42-4F is a compact 4-inch broadband subwoofer engineered to deliver clear, full-range audio reproduction in space-constrained designs. With a nominal diameter of just 101.6 mm and a shallow depth of 54.1 mm, this driver excels in applications where size is at a premium yet sound quality cannot be compromised. It is ideally suited for use in high-fidelity satellite speakers, multimedia systems, portable public address cabinets, and automotive audio installations where a wide frequency response and efficient performance are required.

Technically, the 4FE42-4F features an aluminium voice coil with an inductance of only 0.05 mH, ensuring low distortion and rapid transient response. Its sensitivity of 93 dB SPL at 1 metre with 2.83 V input makes it highly efficient, delivering substantial output from modest amplifier power. The total Q factor of 0.38, combined with a mechanical Q of 6.6 and an electromagnetic Q of 0.4, provides a well-damped alignment suitable for sealed or small vented enclosures. The maximum linear excursion (Xmax) of 2.83 mm allows for controlled bass extension, while the 3.5 ohm DC resistance and 4 ohm nominal impedance simplify system integration. With four mounting holes on a 115.3 mm bolt circle and a cut-out diameter of 6 mm, installation is straightforward. This robustly built driver offers a compelling blend of clarity, efficiency, and compactness for discerning audio projects.