Hi,
as speker grill, I have been using, in some projects, the italian moka coffee espresso spare filters,as the one reported in picture.
These are of different sizes, starting from 2 coffee cups up to 12 cups, as the one in picture. No sound problems.
The filter has a flange and it can be glued to the panel, or blocked by the speaker.
73
Gian
I7SWX
Giancarlo - I7SWX
