I think you should be okay with ground section of any of the power headers. Instead of soldering something permanent in your case, you could strip one end of a eurorack power connector. You could also use a blank / blind panel to create a simple version of the old Make Noise format jumbler ( https://www.schneidersladen.de/en/make-noise-format-jumbler.html )

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Blank panel with a ground jack sounds like a neat idea. Could do it in 2hp I guess?

There’s really no need to install a ground jack in a eurorack case and no need either to ground to power. When using a format tumbler, the ground can come from the regular patch cable (which is attached to ground and signal). All the standard 3.5mm jacks in a jumbler need to be connected to a single banana jack that you can then use for grounding.

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well, maybe i shld clarify: my entire 3U system is banana (elby euroserge)… i’d need a 0v jack in order to ground the case to something else external, also banana. i’m not using any 3.5mm cables in this context…

Ah, ok. In that case, you could ground to power like shown above or even use one of the un-used ground pads on the pcbs if you’re using banana jacks.

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on an arbitrary module? or on the power bus?

Either should be fine since they would both be grounded, theoretically.

I would connect it to an unused ground pin on the power distribution bus.

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thinking of wiring the 0V jack to the unused GND screw via ring connector. would this work?


I’d rather avoid occupying a power header that could be potentially needed down the line (if I understand your suggestion correctly).

As @Jonny has said, the two grounds should theoretically be the same, however there are situations where that not be the case and you could end up with a ground loop.

I would think that connecting signal ground of both devices would be the way to go but I might be wrong. You’re safe to connect to the earth ground screw but if you start noticing noise/humming within your signal path when using the two instruments together you might need to switch it up.

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I’d use that grounding screw if you have it readily available like that.

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I’ll try it out once I have the parts and report back—thanks all!!

Hi! I’m looking for a way to connect my full small R*S 4x4 serge skiff to my norns. I don’t have the R*S output module and I’m wondering what’s the most minimal and safe way to get some audio out from the serge into the norns? Looking for something external or even better something small enough so I can fit it inside the skiff (and drill some holes for jacks?)

edit: for context this is my skiff :slight_smile:

Cheapest/easiest would probably just be some banana to 1/4” passive attenuators. That’s what I’d do in a pinch. Unless you’re also looking for a solution that mixes and sums? Then probably a handful of passive attenuators and an outboard mixer.

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You can always get a format jumbler box. Always handy. It converts banana signals to jack/mini jack (and vice/versa) and takes care of grounding banana stuff with external gear. Small, passive devices. I drilled a couple of holes on mine and connected a couple 100k pots so i can send 2 extra audio signals from the Serge and attenuate/mix them before they hit other gear.

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Wondering if anyone based in the US has any leads on PSU’s for serge systems. Other than ordering RS PSUs from patchpoint or RS directly (who are sold out anyway), the only other prebuilt solution I’ve come across is Konstant Labs Cihula PSU (which also I cannot find for sale domestically). I know Elby designs has one, but I think its DIY kit. I dont have the IDY skills, and I know that DIY builders can build them. I’m just wondering why 1. Prebuilt PSU’s arent more readily available (as it seems theres a fair bit of demand) and 2. None of the synth distributors in the US seem to stock any R*S PSU’s?

Not in the US, but my favourite PSU is the Loudest Warning portable one. I have two for my 5 boats, they work great, look great, and are easy to gig (if you do that).

Ships from London, but everything I’ve ordered from Charlie has arrived quickly.

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Some reasons:

  • There is a lot of DIY. In fact, Random Source started by making panels for the CGS boards, from what I’ve seen, and eventually partnered with Serge to make new designs.
  • Lack of an agreed upon standard connector choice. Although molex and neutrik jacks seems to be the most common.
  • Early Serge uses a +6v line in addition to the +12,-12, and ground that newer designs use.

Yes, Random Source doesn’t seem to have much distribution for the Serge stuff in the states and it’s probably a demand thing. People are buying way more eurorack modules than 4U.

I’ve got him working on a minipanel for me at the moment…maybe I’ll see if I can add a PSU to that…:slight_smile:

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@emenel your PSU from Loudest Warning uses XLR connectors (to connect R*S boats)?
What’s the size/weight of it?
a single Konstant Labs CIHLA can handle 4 boats. Any comparisons on power/portability?
I’m on the plans of LaBestia & Edelweiss and with an option of 2 more boats on the far future…
Also some LW PSU picts would be welcomed…