Waveguide for Scanspeak 2908/71400 Revelator Beryl

Hello. Has anyone made an elliptical waveguide for the 2908/71400 revelator tweeter? Or maybe someone has some information?
 

Attachments

  • Screenshot_20240130-214400.png
    Screenshot_20240130-214400.png
    333.7 KB · Views: 54