Pursuing the ultimate in sound production, MDR-Z1R are the first headphones in the world with 120 KHz playback. Form and materials that fit the requirements of acoustic design bring you as close as possible to the feeling of a real concert hall. Housed inside a curved surface that controls internal resonance, paper and net double-layer build allows natural sound to run free. The diaphragm protector uses random patterns derived from Fibonacci sequence numbers to successfully minimize sound shielding. With a new design approach inspired by nature, we deliver unprecedented quality of sound.