SB Acoustics SB20PFC30-4 8" Paper Cone Woofer

The SB20PFC30-4 from SB Acoustics is an exceptional 8-inch paper cone woofer designed to deliver deep, controlled bass with remarkable clarity. Engineered for audiophiles and DIY enthusiasts alike, this driver excels in both bass and mid-bass applications, making it an ideal choice for high-fidelity loudspeaker systems, subwoofer designs, and multi-way audio projects. Its natural paper cone provides a warm, articulate sound signature that complements a wide range of musical genres.

This woofer is perfectly suited for use in sealed or ported enclosures, where its low total Q factor of 0.33 ensures tight, precise low-frequency reproduction. With a sensitivity of 92.5 dB, it offers impressive efficiency, allowing for substantial output even with modest amplifier power. The 5.75 mm linear excursion (Xmax) enables robust performance without distortion, while the 30.48 mm voice coil diameter contributes to excellent power handling and thermal stability.

Technically, the SB20PFC30-4 features a resonance frequency of 33.7 Hz and an equivalent volume (Vas) of 65.98 litres, providing flexibility in cabinet design. Its DC resistance is 3.4 ohms, and the voice coil inductance is a low 0.71 mH, ensuring clean transient response. The mechanical (Qms) and electrical (Qes) Q factors are 2.78 and 0.37 respectively, resulting in a well-damped driver. Part of the acclaimed SB Acoustics PFC Paper series, this woofer combines traditional materials with modern engineering for outstanding audio performance.