B&C 15SW115 – 15″ High-Output Subwoofer Driver
The 15SW115 is a professional 15-inch subwoofer driver built for high-output performance, excellent durability, and reliable efficiency. Designed to handle serious bass duty in demanding systems, this driver is ideal for pro audio applications such as touring subs, fixed installations, and bass modules in PA stacks. With robust mechanical design, a large voice coil, and optimized motor structure, the 15SW115 delivers clean, controlled low frequencies without overheating or distortion, even under extreme use.
Deep Low-Frequency Extension & Wide Usable Bandwidth
With a nominal diameter of 380 mm (15 inches), the 15SW115 offers significant cone area to move air and produce deep bass. Its frequency range of 35 Hz to 1500 Hz allows it to reproduce sub-bass fundamentals while maintaining clarity well into the lower midrange. Whether in vented subwoofer cabinets or sub-bass modules in larger enclosures, it ensures authoritative low-end output and smooth transitions to upper bass frequencies without harshness or muddiness.
This wide working range means it can serve as both a primary bass driver in compact designs and as part of larger systems where deep extension and high SPL are required.
Serious Power Handling & Thermal Performance
The 15SW115 is rated for nominal power handling of 1700 W and continuous program power of 3400 W, giving it generous headroom for dynamic peaks and sustained low-frequency content. Its 116 mm (4.5-inch) copper voice coil is built to withstand high thermal stress, with sufficient winding depth and ventilation to manage heat efficiently.
The large coil, coupled with optimized motor gap and cooling paths, ensures minimal power compression even under prolonged use, preserving performance in demanding environments like concerts, clubs, and outdoor events.
Efficient Sensitivity & Output
At a sensitivity of 96 dB (1W/1m), the 15SW115 converts amplifier power into strong acoustic output with efficiency. While handling high power, it also provides usable SPL with less amplifier demand, allowing system builders and sound engineers to design with better gain structure and less risk of overloading amps.
This sensitivity is especially useful in systems with multiple subs or in array configurations where amplifier power must be distributed efficiently without losing output or clarity.
Electrical Behavior & Integration
The driver operates at a nominal impedance of 8 Ω, with a minimum impedance of about 6.5 Ω, providing stable electrical loading and predictable behavior with common amplifiers and crossover networks.
Stable impedance reduces risk of amplifier stress or unexpected dips, making the 15SW115 easier to integrate into both passive and active system designs. It enables straightforward matching in multi-cabinet configurations while maintaining system reliability under high output.
Mechanical Durability & Build Quality
Designed for rigorous use, the 15SW115 includes features like a double silicone spider with optimized compliance to manage excursion, an aluminum demodulating ring to reduce distortion, and a vented voice coil gap to improve cooling. The cone is waterproof treated on both sides, making it resilient in humid or outdoor conditions.
These mechanical features contribute to long-term durability, keeping sound quality consistent under repeated use, high SPL demands, and environmental stress.
Ideal Use Cases
The 15SW115 is well suited for:
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Touring subwoofer cabinets or front sub modules needing high SPL and deep extension
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Fixed installations in venues, clubs, or outdoor auditoriums where loud, solid bass is essential
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Bass modules in full-range PA top boxes or large line arrays
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OEM systems where a reliable, high-output 15-inch subwoofer is required
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Systems needing extended low end with minimal distortion and consistent performance
Its combination of power, sensitivity, and mechanical strength make it a versatile and dependable choice for pro audio demands.
Specifications
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Nominal Diameter: 380 mm (15 in)
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Voice Coil Diameter: 116 mm (4.5 in)
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Continuous Power Handling: 3400 W
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Nominal Power Handling: 1700 W
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Nominal Impedance: 8 Ω
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Minimum Impedance: ~6.5 Ω
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Frequency Range: 35 Hz – 1500 Hz
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Sensitivity: 96 dB (1W/1m)
Performance Summary
The 15SW115 provides deep, loud bass with excellent clarity and sustained performance. It resists power compression well thanks to its big coil and good thermal management. In terms of output, it delivers serious SPL while maintaining low distortion and clean bass character.
Its strength lies not just in how loud it can go, but how reliably it delivers that low end without compromising on control or tone.
Conclusion
For pro audio systems where bass impact, headroom, and durability are essential, the 15SW115 proves to be a top-tier driver. With its high power ratings, efficient sensitivity, wide frequency range, and rugged mechanical design, it’s built to perform under pressure.
If your setup needs a 15-inch subwoofer that can work hard, stay clean, and keep going set after set, the 15SW115 is built to deliver.
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About B&C Speakers S.r.L.
B&C Speakers products are built in Bagno a Ripoli (Florence), Italy., ensuring high quality products to suite your speaker building requirements. Their 10,500 square meter facility incorporates highly sophisticated automation and quality control. Over the years they become one of the world leaders in the Professional Audio market, a brand recognized everywhere as a premium product that offers excellent value to the consumer.
