crwdns2934241:0crwdne2934241:0 Rick Waller
crwdns2934249:0crwdne2934249:0:
That is the ground wire. It's not needed, as Shure did away with that wire in newer versions of the SM57. However, I believe on the XLR end it was connected to pin 1 and on the cartridge end it was connected to the center post of the cartridge.
crwdns2915684:0crwdne2915684:0:
open