I-f (also Interr-Ference) is the stage name of Ferenc E. van der Sluijs, a Dutch producer and DJ based in The Hague. He is a former member of the Dutch techno-pioneers Unit Moebius.
In 1997 he produced the track "Space Invaders Are Smoking Grass",[2] which became a huge underground dance hit and is often cited as an early example of electroclash.[1] It introduced "old-fashioned verse-chorus dynamics to burbling electro in a vocodered homage to Atari-erahi-jinks" and is the "record widely credited with catalysing" the electroclash movement.[1]
The album Fucking Consumer was released in 1998 on the Disko B label, followed by The Man From Pack the next year. In 1999 he also made the mixed album Mixed Up In the Hague Vol. 1,[3][4] which has been cited by many, including Morgan Geist, as being the catalyst that brought renewed interest in Italo disco.[5]
I-f was featured on the seminal 2002 Ghostly International compilation Disco Nouveau. He has also recorded as The Parallax Corporation with Intergalactic Gary. I-f currently runs a record label called Viewlexx.[6] He also ran the internet radio station Cybernetic Broadcasting System (CBS).[7] It was closed down in 2008 but is now one of four channels on Intergalactic FM, which is also operated by I-f.