Jay Ray aka Ralf Gruppe is one of the most productive DJs and producers in Berlin. Many of his songs have been released on the cult labels MfS, Braincandy and Coldwave 45, and his services as a remixer of countless songs are also much in demand. On Championsound he started his project TR727, an exciting mixture of Berlin trance, house and acid. All three tracks still guarantee full dance floors and a screaming celebration crowd.