For sale, we have a Shure M91ED Cartridge with the Shure Hi-Track Stylus. The unit is in very good physical, and working condition. A well liked cartridge and stylus combination, the setup has received very good reviews over the years. It is a versatile setup that does well with all types of music. Aside from listening to the cartridge, we also measured the DC resistance with a Fluke VOM. The left channel measures 645 ohms, and the right channel impedance measures 652 ohms.