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
B&C's 18SW115 18" pro subwoofer speaker boasts an oversized 4.5" voice coil, neodymium motor, 1,700 watts RMS power handling capacity, and 14 mm Xmax (60 mm peak-to-peak excursion before damage).