The Sub OneTen is equipped with our excellent 10 inch driver: SW290-6. This driver has been engineered with sound quality as the primary objective: Fast, impactful and refined. By looking at the construction and material choices of this driver it becomes clear why it is superior: 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. A four layer three inch copper voice coil is almost unheard of in a 10 inch driver. This very large voice coil 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.