Dayton Audio PS180-8 6-1/2" Point Source Full-Range Neo Driver High sensitivity/minimal distortion-an ideal match for lower powered amplifiers Parasitic HF cone and carefully engineered phase plug extend on- and off-axis response Solid bass performance, thanks to usefully high excursion capability (4.6 mm Xmax) Optimized neodymium magnet provides high motor strength Low-mass copper clad aluminum voice coil