There is a cone mounted to the grill cloth board that fits inside the speaker on the radio. What is that for. Thanks
High frequency dispersion.
Make sure it holds well.
Those are known to fall off and damage cones.
Also when removing-replacing speaker, make sure you are being mindful of it being there lest it damages your cone.
Thanks I’ll watch it, did not know it was there when I took it off.
This is exactly when most damages occur.
Morzh is right. Don't ask me how I know.