The Ortofon Pro S OM Premount is an entry-level cartridge, which includes the Pro S stylus and is installed on the OM-Series headshell.
Ortofon Pro S - OM Series Cartridge and Stylus (Single)
The OM version of the Ortofon Pro S Cartridge is designed for mounting onto Ortofon headshells. This package includes a single cartridge and preinstalled stylus. The Pro S retains all the sonic attributes of the Pro Silver, but features a wider stylus for low wear and enhanced durability.
Ortofon DJ Headshell for OM Series Cartridges (Black)
This black Ortofon Headshell will accomodate most DJ cartridges but is particularly useful for mounting the Ortofon OM series cartridges onto turntables. The headshell features a black finish that complements their Nightclub, Nightclub II, and Pro S model cartridges.