Lloyd Woodrowe James, better known as Prince Jammy or King Jammy, is a Jamaican dub mixer and record producer. He began his musical career as a dub master at King Tubby's recording studio. His dubs are known for their clear sound and use of effects.

Osbourne Ruddock, better known as King Tubby, was a Jamaican sound engineer who influenced the development of dub in the 1960s and 1970s.