I wouldn't put anything in the whole - I'd get the next case first - so there are no constraints on hp

But, if I wanted CV mixing in a case this size I'd be tempted to replace the doepfer LPG with a MengQi DPLG and a DC coupled quad cascading vca (so you have a voltage controlled CV Mixer)

"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