Manel Ruiz Lens debut was in 1997 at the legendary Nitsa club as DJ Ebola. In 1999 he begins to produce as Neue Lärmklassiker , subsequently he released two EPs and several remixes as System Factor City, alias in which he works right now. His career as a producer brings together more than 30 releases between EP’s, compilations and remixes.

He has worked with labels such as Bedrock, Traum Schallplatten , Gigolo , Factor City, Paradigm or Pong, collaborating with Felix Da Housecat, apart from playing in the most respected festivals and clubs in the national scene (Sonar , Monegros , Moog, Offf). His latest work is Ego EP for Factor City Records, which reaffirms his quality and originality as a producer.