Both are experienced producers ; Roulier was also a leading club promoter in Colorado .
SABO traveled the U.S. as a drum - and - bass DJ and had had 20 commercial vinyl drum - and - bass releases .
Both are experienced producers ; Roulier was also a leading club promoter in Colorado , and SABO traveled the U.S. as a drum - and - bass DJ and had had 20 commercial vinyl drum - and - bass releases .