B&C R18DS115-4 Recone Kit For 18ds115-4 Neodymium Subwoofer Speaker 3400W 4-Ohm
This next evolution subwoofer uses a new, longer, four layer aluminum voice coil. The result is more energy in the gap, higher sensitivity, lower distortion and better overall performance. Neodymium magnet allows a very high force factor and linear excursion.