State-of-the-art CAD software running on sophisticated workstations enables Celestion engineers to create virtual 3-D prototypes of each new model.

This data is then used to build actual prototypes by stereo lithography, a process in which liquid resin is hardened by laser with pinpoint accuracy. It's a technique that allows the fit and assembly of each component to be verified to minute tolerances. Even the tools to make the actual production components are created from the same 3-D data, resulting in end products whose design specification is executed perfectly.