canuckaudiog
On a quest for high fidelity
Congrats!! Very exciting! I thought the donut was the "dust cap"? If so, you should not need to mess with the tightening rod, just glue the dustccap over the rod area. That damn rattle from the speaker terminal was a pain for me too! I reached in there several times to tighten it. Maybe ask around if there is a glue of some sort that will stop the rattling without interfering with signal connection. Or maybe you may only need new washers?
Yeah, that's right - the donuts are a dust cap, but also completely seal the cabinet off.