What Type of utility modules?
-- darksoul
if you are referring to my signature - effectively all of them - mixers of all sorts, vcas (especially cascading ones), switches, attenuverters etc etc - use for modulation and triggers as well as audio - doepfer almost always has a reasonably priced version of everything (but it looks like you know that already)
"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia
Utility modules are the dull polish that makes the shiny modules actually shine!!!
sound sources < sound modifiers < modulation sources < utilities