Speaker refurbish for Logitech X300

This is a speaker box to reuse the speakers in the Logitech X300 Bluetooth portable speaker.
remove the speakers and the membranes from the X300 speaker and mount them in this box. The membrane is glued with some flexible glue.
It closes with 6 M3 inserts.
Also, is better to fill the inside the speaker with some foam or light cloth to improve the acoustics.