In 1948, Ortofon launched the first series of moving coil cartridges.
A mono record contains only one signal corresponding to left + right which is cut in the lateral direction, so there is no vertical information.
When playing a mono record with a stereo cartridge you will not achieve quite the same signal in the two channels due to multiple imperfections.
This difference between the channels will certainly result in an unstable, "fuzzy" soundstage, adding a mono switch to your chain can improve this.
On the other hand, when you use a mono cartridge to play the same record, these issues don't occur, since it generates a single signal that feeds both channels in your audio setup.
This will provide a much more forceful and stable image with a fuller sound.
Hence the continued Mono range from Ortofon…
