Wiring classic Shure 545 unidyne iii 4 pin amphenol to XLR
Can anybody help me with the correct cable wiring for a Shure 545 which has 4 pin amphenol connector (the type which changes impedance by changing the mic cable) very early I believe made in USA before Shure moved production to Mexico.
I bought 2 of these for my son but need to try to sort cables for him