The Obscene Extreme is a music festival in the Czech Republic . The venue was in Trutnov from 1999 to 2008 and has been in Svojšice near Pardubice since 2009 . The musical focus is on groups of the genres Hardcore Punk , Crustcore , Grindcore and Death Metal . The event will take place on three days in July. Every paying visitor receives a free festival sampler .