B&C 12SW115 12" LF Driver 4Ω Subwoofer 3400W Professional Audio Woofer System

If you're building serious low-frequency power and you’re tired of subwoofers that tap out when the pressure rises, the B&C 12SW115 12” LF Driver – 4 Ohm is the upgrade your system has been waiting for. This is not just another woofer — this is a high-performance, professional-grade low-frequency engine built for extreme output and reliability.

Designed specifically in a 4Ω configuration, this driver allows you to extract maximum power from your amplifier, making it ideal for high-output subwoofer systems where efficiency and punch matter most.

Many compact horn-loaded subwoofer designs trap heat inside sealed motor chambers, slowly cooking the driver under heavy load. The 12SW115 solves that issue with a massive 115mm (4.5") split copper voice coil, engineered to handle an incredible 3400 watts of continuous program power. That means serious headroom, relentless impact, and dependable performance even during long, high-energy sessions.

At its core is an FEA-optimized Neodymium inside slug magnet assembly, delivering immense magnetic strength while keeping the driver lightweight and efficient. The integrated aluminium demodulating ring dramatically reduces distortion by stabilizing Bl and Le, giving you tight, controlled, and accurate bass instead of unwanted coloration.

With a powerful 13.5mm Xmax, this driver moves serious air while maintaining precision. The double silicone spider with optimized compliance ensures stability at high excursion, while the ventilated voice coil gap minimizes power compression — keeping output consistent when the system is pushed hard.

Covering a wide 40Hz – 1500Hz frequency response and offering 92 dB sensitivity, the 12SW115 4Ω version is perfect for compact horn subwoofers, high-performance reflex enclosures, and demanding professional audio systems. Even the fine details matter — like the excursion-optimized lead wires woven through the spider, built for durability under extreme movement.

• This is not background bass.
• This is chest-hitting, room-moving authority.
• This is professional low-frequency performance without compromise.

If you're upgrading or designing a serious subwoofer system and want maximum amplifier efficiency with 4 ohm power delivery, the B&C 12SW115 4Ω is ready to perform.

Check out at VIP PRO AUDIO B&C 12SW115-4.