well you didn't mention that you had another audio interface - sorry mixer - why not just go straight into that then and bypass the mixer and the es9?
if it's audio it doesn't need to be dc-coupled - that is just for cv
"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