How to make a whizzer cone

30cm box driver from post 34 got a small whizzer.

Not because of sonic reasons but because it collects too much dust being used in open air only.

After each use its covered with a tissue but protection is not good enough against the dust in a dry desert climate on the long run.

The piezo tweeter horn must be protected, too. Somehow.

Not always is a whizzer necessary. If there is no dust problem:

Below the dustcap of a driver there is lots of radiating surface from the blank voice coil.

The highs are beaming on axis.

With the whizzer dispersion off axis is better.
 

Attachments

  • IMG_20250506_181700.jpg
    IMG_20250506_181700.jpg
    524.6 KB · Views: 4
  • IMG_20250506_181656.jpg
    IMG_20250506_181656.jpg
    571.1 KB · Views: 4