Resuspension with new surround installed cleanly, new spider, replace rotted dust screen, clean gap of foam goo...
They'll perform like new.
There is a couple of videos on my Facebook page of this exact operation I did a few months ago. I should upload to YouTube...on my "to do" list.
https://www.facebook.com/UplandLouds...7412589819370/ before installing back into frame.
https://www.facebook.com/UplandLouds...3768207742105/ Testing with sweep generator after install.