3D Loudspeaker
Autodesk 3ds
3D speaker, speaker box file for Autodesk
Cinema 4D c4d
3D speaker, speaker box for Cinema 4D
Wavefront OBJ .obj
3D speakers, speaker box, 3D models in .obj format
StereoLithography
3D speakers, speaker boxes, 3D models in STereoLithography format (created by 3D Systems). For example for Clara.io, CloudCompare und MeshLab.
VRML
3D loudspeakers, loudspeaker boxes in VRML format (Virtual Reality Modeling Language).