Axel Grell was a guest speaker at the New York edition of CanJam 2023, and delivered a talk that expounded on the geometrical design of a headphone in relation to a listener's spatial perception of audio. Attendees of the expo were surprised to find that the ex-Sennheiser engineer had a new gizmo to show off on the show floor. The prototype headphone's origins are clearly linked to his research into the shape and directivity of sound fields, with the result being an unusual front-mounted driver orientation.

The super angled driver design will emphasize soundstage, which is an aspect vaunted by gamers in the search of the ideal headphone for competitive multiplayer sessions. Grell told attendees that the open-back prototype is 'version 1' and that it was constructed via a 3D printing process, he also added that the drivers are made from a biocellulose membrane. The chosen collaboration partner seems to be Drop (formerly Massdrop) and that a launch price of around $300 is being discussed.