FaitalPRO 4FE42-8F Full-range Woofer

The FaitalPRO 4FE42-8F is a compact yet powerful 4-inch full-range driver designed to deliver clear, full-range audio in space-constrained applications. Engineered for versatility, this 8-ohm driver excels in scenarios where high-quality sound reproduction is essential but installation space is limited. Whether integrated into a high-fidelity home theatre system, a professional studio monitor, or a custom automotive audio setup, the 4FE42-8F provides a balanced and detailed sonic performance that belies its modest dimensions.

At the heart of this driver lies an aluminium voice coil, which offers excellent thermal conductivity and low moving mass, ensuring rapid response and reduced distortion even at higher power levels. With a sensitivity of 94 dB SPL (1m/2.83V), the 4FE42-8F efficiently converts amplifier power into acoustic output, making it suitable for both low- and moderate-power systems. The total Q factor (Qts) of 0.47 indicates a well-damped alignment, allowing for flexible enclosure designs—from sealed boxes to ported cabinets—without compromising transient accuracy. The mechanical Q (Qms) of 8 and electrical Q (Qes) of 0.5 further contribute to controlled bass reproduction and smooth midrange extension.

Featuring a nominal diameter of 101.6 mm and a mounting depth of just 54.1 mm, this subwoofer fits neatly into shallow enclosures. The four mounting holes on a 115.26 mm bolt circle diameter simplify installation, while the 2.83 mm linear excursion (Xmax) ensures robust low-frequency output. With a DC resistance (Re) of 5.4 ohms and low voice coil inductance (Le) of 0.07 mH, the 4FE42-8F maintains consistent impedance and extended high-frequency response. Ideal for compact, high-performance audio systems, this FaitalPRO driver is a reliable choice for achieving articulate, full-range sound.