SB Audience BIANCO-15OB350 Woofer

The BIANCO-15OB350 Open Baffle Woofer from SB Audience is a purpose-built 15-inch subwoofer engineered to deliver deep, controlled bass in dipole and open baffle configurations. Designed for audiophiles and DIY enthusiasts, this driver excels in applications where traditional enclosures are impractical, such as open baffle loudspeakers, infinite baffle setups, or large-scale home theatre systems. Its high sensitivity and robust construction make it ideal for both music and film reproduction, offering articulate low frequencies without the boxiness of conventional cabinets.

Technically, the woofer features a high-sensitivity ferrite motor achieving 98 dB SPL (1m/2.83V), ensuring efficient power handling and dynamic response. The pressed steel frame provides rigidity, while the 11.02 mm linear excursion (Xmax) allows for substantial air movement with minimal distortion. Key parameters include a total Q (Qts) of 0.57, mechanical Q (Qms) of 12.17, and electrical Q (Qes) of 0.6, optimised for open baffle loading. The 7.2 ohm DC resistance (Re) and 1.72 mH voice coil inductance (Le) contribute to stable impedance and controlled behaviour. With a 391 mm overall diameter and 363 mm cut-out, installation is straightforward.

This subwoofer combines high sensitivity, linear excursion, and carefully tuned parameters to deliver authoritative, clean bass in open baffle designs, making it a superior choice for discerning listeners seeking natural, uncoloured low-end reproduction.