The file 'LDA 15′ Phase Plug – Standard 3D Printer Model' is (stl) file type, size is 102.7KB.
This is for implementing a phase plug on the La Dolce Audio 15' open baffle mid-range driver. This screws into the LDA 15' Phase Plug Screw Cap.
If you don't have a 3D printer, you can get any of these components printed by a 3rd party like Craft Cloud.
Phase_Plug_-_Plug_Standard_V1.stl | 320.1KB |