Jacobs was born in Hilversum, Netherlands. He is the second son of famed Dutch musician Ruud Jacobs and therefore the nephew of Pim Jacobs. Jacobs has two brothers, Jeroen and Roeland, and is the stepson of Thijs van Leer, the founding member of Focus. Jacobs was a member of van Leer's side bands Van Leer and Conxi, and Olivia.
From 2002 to December 2016, Jacobs was a member of Focus as their bassist as is featured on their studio albums Focus 8 (2002), Focus 9 / New Skin (2009), Focus X (2012), and Golden Oldies (2014). During his tenure with the band, Jacobs also served as their producer and was credited as a writer on "De Ti O De Me", "Sylvia's Stepson", "Aya-Yuppie-Hippy-Yee" and "Hoeratio". He was replaced by Dutch player Udo Pannekeet.
- with Focus
- "From Holland - Prog Rock Legends: Focus featuring Thijs Van Leer (HH)". Therobin.Com.Uk. Retrieved 29 August 2013.
- Swanson, Dave. "Focus – Where Are They Now?". Ultimate Classic Rock. Retrieved 29 August 2013.
- Official Focus website at FocusTheBand.com