dude, for some reason i cant get that icky thump dun tone dun sa big muff,, gumagamit ba cia jack white ng pitch shifter.. neways OT un im sorry mga sirs..
although jack white uses a custom big muff pi, he didn't use it nung intro ng icky thump. he used a synth for it... check mo youtube ng icky thump...
OT: icky thump is actually a form of brittish slang if i'm not mistaken(ecky thump tlaga) which translates to "what the heck?"