Question: what is the difference between double j and triple j?
Answer: The new name will be more than familiar to many, especially the over 40s who may remember 2JJ (aka Double J) was the forerunner to Triple J. Back to radio ... Myf Warhurst to host Double J for the over 30s. ... The station switched to the FM band in 1980 and was renamed 2JJJ, or Triple J.