SB Audience BIANCO-12OB150-01 Woofer

The BIANCO-12OB150-01 Open Baffle Woofer from SB Audience is a purpose-built 12-inch driver engineered to deliver high-efficiency bass reproduction in dipole and open baffle configurations. Its design philosophy centres on achieving clean, articulate low frequencies without the need for an enclosure, making it an ideal choice for audiophiles seeking an open, natural soundstage.

This woofer excels in open baffle and dipole loudspeaker systems, where its carefully optimised parameters allow it to operate effectively without a traditional box. It is particularly well-suited for home audio projects that prioritise transient response and mid-bass clarity, as well as for use in hybrid multi-way designs where seamless integration with higher-frequency drivers is essential. With a 96 dB sensitivity rating, it delivers impressive output even with modest amplifier power, reducing the demand on amplification.

Technically, the BIANCO-12OB150-01 features a robust pressed steel basket and a ferrite magnet motor assembly, ensuring reliable performance and controlled excursion. Its total Q factor (Qts) of 0.63, combined with a mechanical Q (Qms) of 6.39 and an electrical Q (Qes) of 0.69, is specifically tailored for open baffle loading. The 6.79 mm linear excursion (Xmax) and 1.18 mH voice coil inductance contribute to extended low-frequency response, while the 7.2 ohm DC resistance (Re) and 2.26 kg/s mechanical loss (Rms) further refine its behaviour. The woofer’s 305 mm nominal diameter and 278 mm cut-out diameter facilitate straightforward installation.

In summary, this open baffle woofer offers a compelling combination of high sensitivity, controlled parameters, and robust construction, making it a superb foundation for high-fidelity dipole loudspeaker designs.