I recently bought a couple of Leak 2060 speakers.
I found when I got home one had a fault on the tweeter, the wires were corroded between the terminals and where they entered the diaphragm.
It was very difficult trying to tin and attach a new length of thin wire to the remains of the old wire leaving the speech coil.
It made me wonder, did they use aluminium wire on some of these tweeters?
Anyway all working now and they have added a new dimension to my listing pleasure, the mids and high notes are very much improved, in fact I have turned the treble down a notch.
I wonder how old they are, would you think about 1972?