No, JBLs don't have metal dust caps, the top woofer looks like a JBL. You might have left a score behind.
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Yes they do, especially back in the 1960s and early 1970s which is about the time someone would think those monstrosities were attractive. Check out the D series stuff like D130s and the like. The foam surround isn't right, but it could be a PR15 passive. There's enough questions to merit a second look.
A couple D130s for $80 would be a pretty good deal for someone. :yes:
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