RAAL-requisite is challenging the high-end headphone status quo with its SR1a ribbon Earfield™ monitor. This “earspeaker” is incredibly detailed with unparalleled transparency.

The SR1a is the world’s first True-Ribbon™ headphone. Highly specialized ribbon drivers were developed to reproduce 30Hz-30kHz bandwidth to eliminate the need for sealed chambered bass and allow for open air baffles for a true full-frequency soundfield.