I have a pair also, but mine are probably a newer version. My tweeter is different. That woofer in yours might be a replacement, but not quite sure. Mine are the clear polys.
I have gotten rust off by using a sponge that has various grits of sanding paper attached to the. I know that Home Depot has them for sanding drywall. I got a set of 3 different grits of sponge blocks at some type of craft store.
You will really like these speakers. :thmbsp: