Backed by more than 60 years of ingenious headphones engineering, the Sennheiser HD 800 Headphones ($1,400), deliver clear, brilliant and undistorted natural sounds with the company's most advanced driver technology. The HD 800 uses 40mm coils, 42mm magnets and 56mm drivers to deliver an amazing frequency response of 6 to 51,000Hz. Each element of the HD 800 was carefully developed and selected to ensure its quality from the high-quality Japanese Alcantara ear pads down to the silver-plated, low-oxygen copper wires.