The power thing is something you have to be aware of even with Mantis cases. The +12v power supply provides 3A, but split into three zones of 1A each. It's small enough space-wise, though, that it would take some really beefy modules to hit the max on any one zone.
-- PragmaticusMax

my big problem with the mantis is the -12v... but I am using it for video...

this happens a lot on all sizes of cases... a lot of small cases are underpowered...

the doepfer 9u cases are often underpwered... they have the same psu as the 6u (which the psu is fine for).. & the 9u are fine if you are using predominantly doepfer (or similar) analog modules, but start putting in small digital ones and...

"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