Traditional loudspeaker cabinets are rectangular boxes made from flat sheets of MDF. The shape is dictated by manufacturing convenience, not acoustics. Flat parallel walls create standing waves. Right-angle joints create resonances. Cylindrical ports create turbulence.
3D printing removes every one of those constraints. We can create curved internal cavities that eliminate standing waves, optimised port geometries that are impossible to machine, and multi-material enclosures with built-in constrained-layer damping.
The result is a loudspeaker where the enclosure contributes nothing to the sound except what the driver intends.