Pro-Ject Pick It MM E Replacement StylusThe new Pick it MM E The phono cartridge is one of the most sound forming and sonically critical part of a turntable. It transforms the physical grooves of a record into an electrical signal. This signal determines the base quality of the music playback. Moving Magnet (MM) cartridges are the most common and affordable solution. These can be manufactured less expensive compared to Moving Coil (MC) and an additional advantage is the replaceable stylus.