Sennheiser's built a legacy with its world-class engineering and aerodynamic designs. The HD 800 headphones are no exception. With the integration of its "ring radiator" drive, listeners can take notice of distinct audio enhancements including better imaging and tighter bass levels. The unique design lets the 800s sit comfortably on your head and are lighter to carry than most high-end over-ears. Take into account its 300Hz square wave and impulse response and realize you have one of the deepest sound stages—the recreation of the recording of a musical event in the x,y, and z axis—featured on a pair of headphones.