Quick shipping of Basimilus Iteritas bought from @Elephantmat, recommended.

Any possibilities to have a poor traders thread? I had an incident where a guy from this forum sold me genuine Mutable Instruments Peaks but the module I received was a clone (verified this from Mutable instruments and they said it looked like a factory made clone, so most probably there are more clone units than the one I have).

The user who sold the module won't respond my messages anymore. Would like to warn everyone else as he seem to be selling a lot.

I haven't had any issues with cables being so loose that they fall out. It could be down to the brand of cables and possibly the weight of the cables and angle of the module. That rape joke is totally not cool though...

In order to get all the in/outs when used as a plugin you have to use Reaktor as an effect and not as an instrument. Hope that helps!

This could also be a bad jack in combination with grounding issues. To help troubleshoot, when the humming starts, try touching a wire to the lip of the jack at each end of the cable at the same time and see if the humming goes away. Also, does additional wiggling of the cable ever stop the humming?

That sounds like a ground loop, actually. Do you know if the powered speakers are on the same AC ground line as the synth, or whether they're grounded at all? If not, that would explain quite a bit.

Probably the best thing you can do is to take the time (and hookup wire) necessary to set up a star-ground to get all of the equipment on the same ground plane. It's time-consuming, but very worth it in terms of cleaning up noise and hum, and might only be necessary for a few pieces of your gear. Have a look at https://www.sweetwater.com/insync/star-ground/ for a very basic explanation of what needs doing...and as I noted, if you can do this only with certain offending devices to clear up the ground loop issues, that works just fine as well.

Here's a couple of feature requests regarding power.
- would be helpfull to have the 'manufacturer Approved' tag also in the datasheet
- it would also be helpfull where you show the total power consumption of a rack to add 'x of y Manufacturer Approved'

I recently started w modular and use the Malekko 8NU8R to get out audio to my speakers.

The issue is that as soon as I (accidentally) thouch the patch cable from the 8NU8R to the speaker the speaker starts humming and I can only stop it by unplugging/re-plugging the speaker. I have different cables from different manufacturers--no joy.

When I patch the cable to my Focusrite 2i2 soundcard instead and from there through the laptop/PC to the speaker all is fine and there is no humming if the patch cable is accidentally wiggled.

How can I improve this?

lol fancy seeing you here mate. looks noice!

Lugia - thanks again for all the great advice and information. Very much appreciated.

Yep, that's an excellent choice! Not only does that give you VCA audio level control, you also get the panning under CV and CV on your AUX send as well. With that 2hp Verb, that's perfect...just patch the AUX send on the Toppobrillo to the Verb's Left input, and you get one-point stereo out. Patch that to your AUX returns, and you've got full CV over the reverb! Note also that the CUE send can work here, too...for example, patch that to the frequency shifter, and return that via a strip on the mixer, and you can drop signals in a similar manual AUX path from your cue sends. Just be careful to NOT activate the cue on that one strip for the frequency shifter, or bad feedback happens (unless you think that might be fun! as in...cue out to delay, delay to frequency shifter, FS to strip one with cue on, and manually control the feedback of that loop to get stairstepping pitch-shifted echoes of your other thru-cue signals! nuts!).

The other changes are primo, too! I see you went with the VCA control over the Quad VCO trick...that'll be loads of fun. Plus the VCSs. Yeah, this is shaping up to be a killer rig...

Thanks a bunch @PinPinKula for the µClouds! Good seller, fast delivery (2-3 days) to Germany.

So, I've gone in and made some changes based on your recommendations. One additional question - would you think that the Toppobrillo 4-chan vc stereo mixer (lower right) would be suitable for use as a VCA? I like the VC panning function.

Again, many thanks for your insightful advice.

This is really great information. Thanks for all these ideas. Lots to consider.

That's odd, then...I would suggest contacting Expert Sleepers about this. Maybe they have some insight as to what the trouble might be. Annoying, I'm sure...because what it's capable of doing is quite nifty, but if the patchcords won't seat, well...

Nope, standard 3.5mm hosa patch cables... loosest holes on my rack. I even have to jam it hard sometimes to get it to work.... and she tells me to stop, but doesn't say the safe word... but really it's not great. Maybe I was sold a demo instead of a new. ahahahahaha baaaahhhhhh hmmmmm?

Nah, not 64 voices. Let's say you have an FH-2 plus a full compliment of seven expanders, so 64 outputs. That means you can break all of this out into, say, eight monophonic channels...with each channel having:
1) note CV
2) gate
3) velocity CV
4) aftertouch CV (poly-capable!)
5) assigned modulation controller CV
6) release velocity CV (yep!)
7 and 8) two more sets of eight for special modulation purposes, assigned as needed.

Now, for a live gig situation, this is a bit over the top, but you'd still want the first four. But when using the FH-2 via a MIDI interface, you can have your DAW send all of that stuff and the FH-2 will break it down as needed. And for complex generative work, having massive incoming control signals to up the complexity ante is always a plus. Plus, having the X and Y inputs in use as a pair of 'sense' circuits, able to send CV back to the DAW, means that you can continue the generative architecture on into the computer itself; something such as Ableton Live + MAX for Live would allow you to build up specific M4L objects to listen to and react to those return 'sense' lines for the M4L object(s) purposes. That would allow a generative process with full control feedback between modular and computer, and endless control-order possibilities!

You must be using 1/8" plugs. The vast majority of Eurorack makes use 3.5mm, which is a hair bigger (0.137", as opposed to 0.125") and while the difference usually doesn't matter, some jack manufacturers make products which are less forgiving of the mismatch.

Technically, they are VCAs...sort of. They're implemented in such a way that they have (as a rule) two VCAs with an inverter in the control line of one. Each VCA gets an equal input signal feed, and the control signal works so that if one VCA is opening, the other is closing. In that arrangement, though, they're a pain to use for amplitude control. Plus, panners tend to use linear VCAs which, because our hearing reacts to sound pressure as loudness in an exponential manner, don't really work well for controlling the amplitude in audio lines. Exponential VCAs work best for that, although you can use linear VCAs if you're controlling them with an exponentially-weighted control signal, like an exponential envelope.

Plus, consider going with a VCA arrangement upstream from your final mixer that allows you to CV manipulate individual VCO outputs. With that Quad VCO, you could pair up an Intellijel Quad VCA which also functions as a 4-1 mono CV mixer, and with the right VCA control inputs (maybe using Doepfer's A-144 Morph Controller?) and VCO tunings, you can do things like swept additive harmonics over fundamental-type combinations from the other VCOs. Or a lot of other things besides!

Got a great Maths 1 from @x2mirko. Quick replies and quick shipping.

That's a good suggestion! I had forgotten about the FH-1 and FH-2. I was looking at Bastl's 1983 and Polyend's poly, the 1983 has a cool "listen" function to keep vcos in tune and the poly had MPE support, but the FH-2 is capable of both those features, or a least has the ability to calibrate vcos. You've sold me getting an Expert Sleepers module. I don't know if I'll ever need to have 64 voices in a module context but it's nice to know there will be room to expand if I need to.

Also, I managed to get an Ants! for a good price. That gives me white noise and a S&H as well as 4 more oscillators and 2 LFOs (or 2 oscillators and 4 LFOs). I'm thinking I can pair this with an 0-coast and have a pretty killer little setup for now.

Maybe I'll get a Disting and take it easy for a bit. In the meantime I'll keep my eyes out if a FH-2 appears on the market for a good price.

How do you like the way the module holds patch cables? Mine fall out and there is nothing holding them in place, so loose.

Are you supposed to use a different size cable with this module?

To me for the price of this thing, it should hold a patch cable in place.

Lugia - thank you very much for this. I mistakenly believed the 2 VC panners were also VCA's. Will update, and definitely research your other recommendations - thanks again. Much appreciated.

I bought a Module from @mnpzn Module is in great condition, fast and good wrapped delivery.

I note the absence of VCAs here...even with designs that replicate the old-school East Coast architecture, you're gonna want a few of those. My suggestion would be to yank the Chatterbox and panners, then put in a stereo VCA mixer that has the panning functions on CV, and use whatever space is left for a couple of linear, DC-coupled VCAs for CV amplitudes. Also, you might consider a bit of a nod to the West Coast (and adding some killer functionality) by pulling the A-145 and 146 and replacing them with Doepfer's A-171-2s. They're basically a rework of the Serge VCS via Ken Stone's redesign. I'm supposing you're planning on using in-line mults. Lastly, have a look at Expert Sleepers' FH-2 as a substitute for the Doepfer A-190-3...much more flexible, and expandable to boot.

And as for the second cab...what? You're considering stopping at TWO?

Hello. I have quite a bit of experience with "old school" modular synths (ARP, Moog), but this is my first foray into the world of eurorack.

My current design: ModularGrid Rack

It's a pretty straight-foward synth at the moment, which is fine with me. After I get this built, I would anticipate adding more modules in a 2nd cabinet (that's not a problem is it?)

Any comments or suggestions would be very much appreciated.

Thank you in advance,


Crazy I've never noticed! Thanks JIR! I love your demos!

buying and selling to members

-- FSK1138

We now have a marketplace with a nice search function and a notification feature!

-- modulargrid

I guess i'm over looking.. where's the search in the Marketplace?


-- dugoutcanoe


There is a drop down selection in the module finder titled "Available In Marketplace" where you can select a few different ares of the world or global etc. It's nice because along with the other regular selections like Manufacturer, Function, Width etc you can quickly find out if there is a module for sale.

buying and selling to members

-- FSK1138

We now have a marketplace with a nice search function and a notification feature!

-- modulargrid

I guess i'm over looking.. where's the search in the Marketplace?


can't wait for this one guys!

Here's a little ambient track I made using IME modules:



It might be the right place to start...but if you're doing more live gig work than studio, possibly not. My suggestion would be to come up with a rig that has a lot of these functions pre-wired, with the ability to drop certain specific modules into the architecture as needed. Have a look at Arturia's MiniBrute 2 or 2S, paired with a 3U RackBrute that contains a few 'extras' that're more processing-specific, and see if that sort of basic build seems workable to you.

I just bought a Vulcan Modulator plus Mind Meld from @Gregsen. Very good communications, excellent description of the mint Modules and fast shipping. Great guy and very nice, too. Thanks a lot!


Good traders
Thanks for Shipping fast mate...
Good looking module!!

Definitely a cool guy to do business with!!

Account below

Hello everyone
I'm a freelance keyboard playing living in France, and I'm looking to add some modular flexibility to my session/production tools.

My first adventure is a setup that can filter, distort and twist and add delay/rvb, all as clockable as possible. Easily internal clock to precise BPM and easy sync to external midi clock is a must.

My choices in this sketch aren't fixed, more in the line of: I would like a filter here, a preamp here, etc.

Am I overlooking something or is this a reasonable place to start?

Is the 7U (3+1+3) format a good choice?


Yep, that angular arrangement looks killer! Can't wait to see this completed...

My suggestion would be to look at an Expert Sleepers FH-1 instead of the Yarns. The programmability of the FH-1, plus the assignable CV outs and the ability to expand those up to 64 outputs would allow much more than 4 voices, plus it would let you output velocity, aftertouch CVs as well. And since it's a fully-compliant USB host, any controller with a USB connection will work just fine. It can even power USB-powered devices up to 100 mA.


Totally awful...not merely economically for their employees and for those of us who'd likely have to pay more for their products, but that the current bad ugliness over here is going to run a part of American musical history out of the country where it envisioned (along with Don, natch) all of this.

Thanks for the suggestions everyone. I've avoided some major design errors with your help.

I ended up ordering a full set of 7U 110HP rails and endplates from Clicks and Clocks. Stefen sells beefy M3 rails with machined endplates for a really good price, and so I just got the whole set from him (including the odd Intellijel 1U format ends yay). I was happy to find the prices including shipping were very reasonable.

So for phase 2. I ordered a Intellijel TPS80W, it's almost 2x my power requirement. I am imagining I'll use a flying bus board cable for 6 of my lowest-power modules (maybe the attenuators and mults) since I only have 20 headers on the board. I got the matching power entry 1U tile from Intellijel, and I'm going to make a 1U-sized hole for it on the rear of the box so I don't have to do any actual wiring of electrics.

Once the parts arrive I'll start to refine the shape of the design to make sure everything fits right, but I have this so far:

See side view of box here: http://prntscr.com/k3d9gc
My main concern now is to make the internal size of the box large enough for the power supply and cables (and I've pushed this a bit towards skiff dimensions to match the side-profile of the Sub37). Deepest module is 50mm on the top row. Looking at my wood stock, I have some 1in cherry for the sides and some walnut from pallet-wood for the front and back.

if you really want the intellijel 1u in a diy case i'd not bother with the endplates
if you want to use endplates for the 3u and possibly a row of pulp logic sized 1u then make a couple of correctly sized endplates out of some thin wood

Bought a Moffenzeef Modular GMO from @smirnow - very fast shipping, nice communication and the module is in perfect condition. Highly recommended seller!

ModularGrid Rack

I'd like some input on my first setup.

All the modules here I have minus the reverb, joystic, and the two mxmxmx units. Those are currently unassembled. Also not shown is a SQ-1, a Werkstatt with CV expander and Korg's reissue of the odyssey.

My end goal for this current rack is a multitimbral synth that's chord friendly as well as being duophonic for basslines and melodies. I plan on playing the odyssey with a keyboard and using it's cv/gate out for monophonic patches for now. Eventually I'd like to get a yarns for the 4 voice allocation mode.

My long term goals with eurorack are fairly ambitious. I want to get into making generative music, as well as using my modular to process other sources like guitar, drums or other synths. Of course I'd also use it as an awesome mono synth or rudimentary poly synth. On top of all that I'd like to do this without spending a fortune. The case I've built myself and I'm looking to assemble DIY modules.

Where should I go from here? I have about $600 left to finish this rack. Should I invest in some more modules or should I get a semi modular to augment what I currently have?

I know I'm lacking a good LFO (the werkstatt has one I can use for now) a S&H, and a multiple. Logic and line in/out come in 1u tiles so I'll be making some of those. The SQ-1 covers my need for a sequencer and clock for now. What other utility functions should I get?

Thanks in advance!

It would be really nice if the "show similar racks" only counted the modules once per each copy of the module you have in your rack. I mean, it's just silly that because I put an OTool in my rack plan that the number one suggestion is a joke rack with 48 more Otools in it... ditto for most of the other popular modules. This would eliminate a lot of the 'spam', and make the feature more useful for people trying to do research on what modules are popular combinations with their existing setup.

I think this is the right start, but here are a few points:

I found rings to be a beautiful module, but with a kind of restrained sound palette, you should test it in VCV Rack before committing.

For generative patches you might want a random source and sample and hold modules, maybe replace PNW with Wooglebug? It is a powerful random source and has a master clock output. You can add a RCD if you're interested in more rhythmical patches too.

Sloth and Batumi might overlap. I don't own any of them, but I've seen the Batumi doing chaotic modulation, especially if self patched (). I might put Function from MakeNoise in the place of Sloth, since it can generate tiny to giant envelopes, cycle as an LFO, and be used as a sample and hold, everything CV controllable, of course.

The rest is taste, I guess! Take a look at the Noise Engineering oscillators, the wavetable one sounds cinematic. Don't forget VCAs, Multiples and Mixers. If you run out of space, you might consider buy an external reverb unit like https://www.strymon.net/bigsky/, since I personally never CV modulate anything dramatic on the reverb, and this is a small rack.

My suggestion, even though it requires a bit of space, would be the 4ms Quad Clock Divider plus the QCD Expander. Lots of functionality...for pretty much anything you need to do math-wise with timing, it's perfect. Sort of a misnomer, also, as it does both division and multiplication of incoming pulses.

As for clock generation, in theory you can use BOTH as long as you keep the timing chains separate. Or, for more fun, you can use a Boolean logic module to set the timing gate pulses against each other at different rates and have the logic generate a totally new timing/rhythmic structure based on the logic state plus timing between clocks. EMW makes a very comprehensive logic module with lots of different gates, inverters, plus a pulse divider all in 14 hp. They actually have a pretty good (and inexpensive!) line of clock modifiers, including trig-to-gate converters that allow adjusting the clock pulse duty cycle, trig/gate delays for shifting pulse coincidence, etc.

Clocking doesn't get enough respect...there's actually loads of possibilities for creating elaborate rhythmic structures just by tinkering with basic timing. You could theoretically get just as busy working your timing modifiers as any other part, going nuts on creating cross- and polyrhythms.

Still lots missing there...you'll want a couple more VCOs to build up initial textures, definitely a couple of filters, and VCAs for both audio (exponential) and CV (linear, DC-coupled) amplitude control are totally necessary. Decent start, but there's quite a way to go...

I think what you want to find is a clock-divider module. It's the opposite of a clock multiplier, but much more common and usually cheaper. You'd run the 2x or 3x division into your sequencer, and then the 1x main clock into your faster sequencer. I love the clock-divider, it's the heart beat of my modular system, there are so many uses for one of these if you do anything with rhythm.

I have one of these, it doubles as both clock + divider, and has lots of switches to make it quite interactive.

There are ton of different options out there for this, so be sure to look around and see if some of the different versions fit your needs better. For example, if you already have a clock module, and want just a single channel divider/multiplier then you could get this one (which has a neat CV input):

But I still prefer the 4hp one I have because it is also my main clock, plus has 4 simultaneous outputs with 3 division modes and a reset.

I'm setting up my first semi modular system.

One sequencer is the main clock! How can I multiply it so my other sequencer will run at double or treble the tempo but still be locked to the main sequencer?

Do I need a eurorack module to do this?

My set up -

Arturia Minibrute 2S
Elektron Analogue 4 Mk2
Make Noise O-Coast

EDP Wasp
Roland Juno 6 (pre midi)
Would you choose the Arturia or the Elektron as main clock?