@mothdust As an electronics expert, I can confidently state that the black goo is the result of the Magic Smoke leaving the spirit of the capacitor.
You know, I think I *may* have found the problem with this subwoofer. pic.twitter.com/Ntj2gflYI1
You’d think that if Jehovah wanted more witnesses he wouldn’t try to recruit while I was having a shower. Grr.