Eurorack Go power restrictions:

  • 12 VDC Supply CAUTION: Do not exceed 1 A for each Zone, AB or C
  • 5 VDC Supply CAUTION: Do not exceed 1 A total (Zones A+B+C)
  • -12 VDC Supply CAUTION: Do not exceed 1 A total(Zones A+B+C)

you should leave headroom on all rails? 25-30% is a good idea... so when it says 1A... you should really only try to power 750mA of modules... this is to allow for inaccuracies in stated power consumption and higher inrush requirements (more power than stated needed on power up) of digital modules...

you're over on the -12v rail by nearly 15%

this may cause all sorts of issues - primarily not powering on properly... ie it won't work

this case is undepowered for it's size... especially when trying to power a lot of digital modules, it's probably fine when filled with mostly lower power drawing analog modules

"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


you should leave headroom on all rails? 25-30%

-- JimHowell1970

I have a second power supply to the right of the Bartender.


so you do... didn't spot it before...

"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


Thanks though. I could have used that info last year, shortly after I got my Tip Top Happy Ending kit and didn't realize that the rating on the PSU module is TWICE the included wall wart is rated for. I was overloading what I thought was a perfectly fine power supply because the wall wart is only rated for 1000mA but the module can handle 2000mA. I thought that was pretty poor execution on their part. Who knows who else is running this thing too hot because they grew off of that kit?


Hey! I'm building my first rack. I really need some help. I have an extra 60hp case sitting around that I'm using for a Maths, Bitbox micro, Disting mk4 and something else. I don't know yet. I need a power source but I'm not sure what to get. I'm completely new to this. I'm working with a moog grandmother, dfam, mavis and a bsp. Any help or suggestions of better modules to get for that setup would be highly appreciated.


If you're just looking for power, something like the TipTop uZeus or the endorphines 2hp power are great for small cases. for the modules you listed, they draw a little over 500mA on the +12v rail and less than 100mA on the -12v rail. With the right wall wart or power brick, uZeus will pump out 2 amps +12v and 500mA -12v, and the 2hp Power produces 1amp +12v and 700mA -12v. Either would give you headroom to add one or two more modules. Cheers!


Hey! I'm building my first rack. I really need some help. I have an extra 60hp case sitting around that I'm using for a Maths, Bitbox micro, Disting mk4 and something else. I don't know yet. I need a power source but I'm not sure what to get. I'm completely new to this. I'm working with a moog grandmother, dfam, mavis and a bsp. Any help or suggestions of better modules to get for that setup would be highly appreciated.
-- JayStax

i think you will be better served in either the modular Reddit or modwiggler beginner forums. I'm still very much figuring things out myself and not the best resource.

your answer will change depending on what kind of music you enjoy making and how you like making it (like are you a keyboardist or more of a sequencer programmer.)

I'm building a big mess of jack of all trades rack since i really like everything from techno to ambient and really anything with a pronounced symth soundscape.


I took the plunge! I filled my old dfam boat with the bitbox micro 18hp, erica synths LXR 28hp, erica synths joystick 12 hp and the endorphin.es 2hp mult power suppply. All Black Faces! It should compliment the grandmother, dfam, mavis, and BSP nicely. Thanks for all of the suggestions! Cheers!