B&C Speakers 15 SW 115

A 15-inch B&C focused on SUB: performance at the core of the range

The B&C 15SW115 is a 15-inch (38 cm) bass driver clearly developed for the sub and low-midrange register, where acoustic pressure, mechanical durability, and excellent thermal stability are expected. Its 15-inch format makes it a versatile choice for many PA enclosures, offering an interesting balance between size, low-frequency extension, and efficiency.

With its neodymium motor and robust design, it fits within B&C's "pro" approach: achieving a high level of performance without compromising reliability, for speakers intended to operate long-term at high levels.

Who is it for and what for: PA subwoofer, serious DIY, and professional integration

This transducer is aimed at integrators, speaker manufacturers, service providers, and DIY enthusiasts who want to build or upgrade a bass cabinet capable of intensive use: clubs, live events, mobile systems, fixed installations, and dedicated bass monitors. Its low starting response (Fs 35 Hz) and excursion capability (Xmax 13.5 mm) make it particularly suitable for sub-heavy programs (electro, hip-hop, live music with strong rhythm sections), while maintaining clarity.

The recommended enclosure volume of 90 liters with a tuning at 40 Hz provides clear guidance for speaker design: a realistic cabinet volume suited to a high-performance bass-reflex configuration, without resorting to oversized enclosures.

Design & key points: power, control, and endurance

4.5-inch (115 mm) voice coil: handle power without losing control

The 4.5-inch (115 mm) copper wire voice coil directly contributes to power handling (3400 W AES) and stability during prolonged use. In a subwoofer cabinet, this is an essential criterion: the coil must remain efficient as levels rise and maintain good transient control to avoid "soft" or overwhelming bass.

Triple roll suspension & Xmax 13.5 mm: moving air cleanly

The triple roll suspension combined with a 13.5 mm Xmax allows for large excursions typical of sub frequencies. The result: more air displacement, hence greater impact and depth, while maintaining a mechanical design built to withstand repeated high-level stresses.

Double siliconed spider: mechanical stability and consistent behavior

The double siliconed spider helps center and stabilize the moving assembly. This architecture aims for more consistent behavior under heavy use, helping to keep bass clear with fewer mechanical drifts over the course of a session.

Radial treated cone: reliability in real-world conditions

The radial cone with waterproof treatment front and back is a real advantage for field use: humidity, temperature variations, storage, transport. This treatment protects the cone and maintains its properties over time, where bass cabinets are often put under heavy strain.

Technical specifications