speaker enclosure for TH9X, 9X

this thing is speaker housing enclosure for flysky th9x, turnigy 9x, imax 9x.
it's for 36mm and 40mm diameter speaker.
it is for smartie party boards such as ar9x.

these boards are not use included beeper.
so, we can choose cut switch pcb like a image.

if you want cut, you can use speaker_bracket_fat_xxmm.stl.
no want, use speaker_bracket_thin_xxmm.stl
fat is more good sound.

The effect is the same as a subwoofer. ^^..
use this thing for good sound!

thanks.