Hi

Had 2 pairs of these speakers kicking around for a while, one pair had really nice condition cases but the bass windings were shot, so I have finally swapped them out.
Have noticed that the rough set have a slightly different layout, there is a tan coloured wire connected to the both coils whereas the other one doesn't.
As I couldn't fill the back of an Micro SIM with my knowledge of electronics I was wondering what the extra connection is for.

Thanks

Stewart