Wilson has long used different baffle materials for different drivers, made possible by its use of separate enclosures for each driver. Specifically, the cabinets are typically made from very stiff “X-Material,” with the midrange baffle made from slightly softer “S-Material.” That’s not possible with the single-baffle Sabrina, so Wilson developed an entirely new material, called “H-Material,” used for the first time in the Sabrina V.