The raw cabinet material is MDF sheets with the vinyl pre-applied. These are fed into a CNC machine that cuts deep v-shaped fold lines just a hair's breadth away from the vinyl. It also cuts dados for internal bracing and holes for drivers, ports, and rear terminals into the back of the sheets. Then, glue is applied to the v-cuts and dados, braces are inserted, and the cabinet is folded into its final shape.

It's a pretty effective process and is why Axiom cabinets are so seamless.