B & C 15SW115-8 18-Inch Neodymium Subwoofer Speaker Driver
3400 W continuous program power capacity116 mm (4.5 in) split winding copper voice coil35 - 1500 Hz response97 dB sensitivity. 60 mm peak-to-peak excursion before damage Neodymium magnet allows a very high force factor and linear excursion Double silicone spider with optimized compliance. Ventilated voice coil gap for reduced power compression Aluminum demodulating ring for very low distortion
B&C 18SW115 18 Neodymium Subwoofer Speaker Driver"