Of the two models, the one we preferred sonically was ATH-CKS77, which uses a design we first spotted in certain Sony earphones several years ago: large 12.5mm drivers are inside of a plastic enclosure, their output channeled through small silicone rubber-tipped tubes directly into your ear canals. Audio-Technica’s twist is a double air chamber system that gives the drivers extra room to breathe, expanding the bass, while also making the earpieces…
