SB Audience BIANCO-18SW450 Subwoofer

The BIANCO-18SW450 from SB Audience is a formidable 18-inch subwoofer engineered to deliver deep, controlled low-frequency extension for high-output sound systems. Whether you are designing a professional PA rig, a nightclub installation, or a custom home cinema setup, this driver provides the authoritative bass foundation required for immersive audio experiences. Its robust construction and carefully tuned parameters make it equally suited to both vented and sealed enclosures, offering flexibility for system designers and DIY enthusiasts alike.

At the heart of this subwoofer lies a total Q factor of 0.45, striking an ideal balance between transient response and low-end extension. The maximum linear excursion of 10.93 mm, combined with a sensitivity of 99 dB (1m/2.83V), ensures impressive output with minimal distortion. The copper voice coil wire and a DC resistance of 5 ohms contribute to efficient power handling, while the low voice coil inductance of 1.37 mH maintains clarity at high volumes. Mechanical and electromagnetic Q values of 8.39 and 0.47 respectively, alongside a mechanical loss factor of 4, further refine the driver’s damping characteristics. With a nominal diameter of 457.2 mm, a cut-out diameter of 424 mm, and eight mounting holes on a 455 mm bolt circle, installation is straightforward. The 6.3 mm vented pole piece aids cooling, ensuring reliable performance during extended use. This subwoofer is a precise, high-quality component for those who demand uncompromising low-frequency reproduction.