I have often wondered about this for probably 20 years and really don't know. It always seemed to me that once you re-cone a speaker, it will never sound the same, so you might as well replace the speaker. I do run some very nice vintage speakers, but only because they were already in the amp. I have always been skeptical about buying someone's vintage speaker and even more so if it has been re-coned. Am I wrong here? Can a re-coned speaker sound as good as the original or is it really an unreal expectation? In full discosure, I did just buy a vintage speaker cabinet containing a pair of Oxford 12T speakers and although they sound pretty good, the cones are dry and have several glue repairs to them already. Date codes indicate a late '60's production.