4x Eighteen Sound 18NLW9400 18″ Subwoofer Extended LF Neodymium Transducer 2400W
The 100mm (4 in) copper round wire state-of-the-art voice coil, based on Interleaved Sandwich Voice coil (ISV) technology, provides high levels of thermal stability and durability. The ISV technology achieves a balanced linear motor unit exerting an exceptionally high force factor.