The Sub One8 is equipped with an extended excursion 8 inch driver. This driver has been engineered with sound quality as the primary objective: Fast, impactful and refined. The soft, low loss rubber surround and spider contribute to more nuances get translated into sound rather than absorbed by harder, stiffer materials usually used in high excursion subwoofers. The much lower loss also means that we can listen to the subwoofer at very low levels, and it will still have the same sound signature and be more enjoyable compared to its rivals. The very large voice coil of the driver results in an extremely firm grip of the diaphragm movements, and much reduced compression at high volumes due to the increased power handling of the larger voice coil.