Overview
The B&C 18SW115 is an advanced, lightweight subwoofer driver featuring 1,700 watts RMS power handling, a 1.33" long/4.5" diameter copper voice coil with very high thermal capability, and a ventilated neodymium magnet assembly that provides low power compression.
Highlights
- Lightweight but powerful FEA-optimized neodymium magnet
- Extremely high BL factor and Xmax for outstanding LF output
- 14 mm Xmax, 60 mm peak-to-peak excursion before damage
- 4.5" split winding copper voice coil on fiberglass former
- Ventilated voice coil gap reduces power compression
- Aluminum demodulation ring on pole piece reduces distortion
- Double silicone spider
B&C 18SW115 18" Neodymium Subwoofer Speaker Driver
The B&C 18SW115 is an advanced, lightweight subwoofer driver featuring 1,700 watts RMS power handling, a 1.33" long/4.5" diameter copper voice coil with very high thermal capability, and a ventilated neodymium magnet assembly that provides low power compression.
Specifications: • Power handling: 1,700 watts RMS/3,400 watts continuous program • VCdia: 4.5" • Le: 1.9 mH • Impedance: 8 ohms • Re: 5.3 ohms • Frequency response: 35-1,500 Hz • Fs: 35 Hz • SPL: 96.5 dB 1W/1m • Vas: 5.1 cu. ft. • Qms: 6.3 • Qes: 0.37 • Qts: 0.35 • Xmax: 14 mm • Dimensions: A: 18", B: 16.6", C: 9.5".
B&C cone loudspeaker models range from 6.5" to 21", each built on a sturdy die-cast aluminum or stamped steel chassis for maximum mechanical reliability. Voice coils are wound in two layers inside-outside around polyimide or fiberglass formers, giving them the ability to withstand very high thermal stress. Loudspeaker cones are treated with a special stiffening finish, resulting in excellent rigidity and avoiding break-up problems when driven to full power.
Many B&C speakers include carefully balanced copper or aluminum rings that minimize variations in the magnetic field during operation, reducing distortion and increasing accuracy in reproduced sound. Most models also feature a specially designed cooling path through the magnet assembly to further increase power handling and lower power compression. The NDL, NW, HPL, and NCX models use powerful neodymium magnets that offer a weight reduction of up to 60%, and special chassis designs for improved cooling.