Wiring a 3-wire Shure 55-S Mic for 2-wire.. | QRZ Forums Dec 14, 2012I have a beautiful new 50's vintage Blue label Shure 55-S microphone here fresh out of the box here mounted to the Heil Boom Stand. I would like to wire it for my Kenwood TS-930S . I have the Amphenol connector with 3-pins marked 1, 2 & 3. Mic cable for Shure 55S Every cable I find will not screw into the input on the mic. They just are not big enough to plug the cord into the mic. Could you please tell me if you make a cord that will work for this mic? Answer: The 55S used a 3 pin Amphenol connector, part #MC3M.