Shure R59 Cartridge for SM58

The R59 is the factory replacement cartridge for the Shure SM58 handheld dynamic microphone. It restores original performance with no audible difference from the cartridge it replaces. Installation calls for a soldering iron, with the green wire attached to the terminal marked by the embossed plus sign, and the cartridge twisted three turns counterclockwise before it is screwed onto the case to relieve strain on the wires.