Developed to impress even the most critical listeners with unusually high quality, the ATH-AD900X is the ideal headphone for music lovers who prefer the soundstage imaging of open headphones and want to combine captivating sound with long-term comfort. The ATH-AD900X features large 53mm drivers, rare earth magnets and copper clad aluminum wire (CCAW) voice coils for superior audio reproduction with an extremely wide frequency response from 5 to 35,000 Hz. The ATH-AD900X offers a stunning listening experience with clear, natural vocal and instrument reproduction, balanced sound, precise sound imaging and unsurpassed dynamics. Its comfort is unique, thanks to the indulgently soft ear cushions, the feather-light, honeycomb aluminum shells and the 3D Wing Support mechanism, which automatically adapts to the size of the head while barely perceptibly holding the headphones in place.