XIO Limited Edition In-Ear Monitors

64 Audio x Astell&Kern XIO is the culmination of Astell&Kern and 64Audio’s shared philosophy on design and sound. Blending precision engineering with artistic sensibility, XIO goes beyond simply playing music. It shapes sound into a tangible experience, offering value that surpasses expectations. Designed as a true object of art, XIO sets a new standard for high-end in-ear monitors—an uncompromising fusion of aesthetics and acoustics that redefines what’s possible. Designed as a singular object, XIO sets a new standard for high-end in-ear monitors through its uncompromising approach to both aesthetics and acoustics. 64 Audio has established itself as an innovative company that pushes the boundaries of IEMs, thanks to a team of top professionals and proprietary patented technologies. “XIO boldly opens a new chapter in the evolution of high-end in-ear monitors. It goes beyond simply reproducing sound—it embodies our philosophy of sculpting sound itself. By combining mechanical perfection with musical sensibility, XIO creates value that exceeds expectations.”