Expert Sleepers ES-9

I don’t buy that many modules (unless it’s MFB) but this one I made a exception. I needed a good way to combine my rack with my DAW and this module is in my opinion the best to do so. I bought it second hand and only scratched the surface so far but recording my rack has never been so easy. The quality of the recordings is just amazing. I planning on using it to make some recording for the website while doing reviews of modules. I cost me quite a few buck but worth every penny.

https://www.expert-sleepers.co.uk/es9.html

Difficulty to build: No DIY

Recursinging Kxmx bluemchen

I just finished one of these. I found his post by accident on modwiggler. After seeing it I went into a rabbit hole for a few days. This baby is a small Daisy patch and open source. If you don’t know what a Daisy patch is… well these days a lot of modules come out that use a Daisy on the back of them. Daisy is kinda like a Arduino nano but build for audio DSP. This makes it a great miniature computer to program stuff on. I just build mine and still need to load some code on it. This module can be anything you make it to be, a FX unit, sampler, ADSR and more. Just about anything. It can be used in Guitar pedal be a complete synth or a eurorack module. It is used by Noise engineering, Knobula, PedalPCB and more. For more information on the Daisy just visit electrosmith.

https://www.electro-smith.com/daisy

Recursinging made a open source small module for eurorack. I can’t wait to program this puppy. Mainly as a FX unit or a sample player.

https://kxmx-bluemchen.recursinging.com/

Difficulty to build: Hard mostly SMD. I used a SMT assembly when ordering the board.

Cagey ThirtyThreeFifty

I got this filter from a friend of mine. He just send the pcb’s and panels and a link for the bom. As we where both building it we found it had some error’s. After he emailed Cagey we discoverd he accidentally uploaded the old files and our board where made based on that. Knowing what the problems where we finally could build it. I was quite interested in this filter. It uses a chip that not many filters use and is used in some great sounding machines like the Synton Syrinx and Crumar Spirit. The filter it self is quite nice. It doesn’t go into that oscillation mode on resonance. I would even call it quite calm, smooth and subtle. But that can be very nice sometimes.

It inspired me to have a better look at the chip used in this baby and make my own filter. I’m waiting on the pcb’s to arrive so maybe more on that.

https://kg.kg/cem3350-eurorack-filter/

Difficulty to build: Medium/Hard

Budgie Synths Blackbird

Well oh well this is a special one. It’s also still in the prototyping fase. The module is a random acid generator and can (also) be used to create basslines. I’m testing this module out and want to thank Budgie for sending me one of these. I still want to do a full build report and review on it. Hopefully I can find the time for that somewhere.

Some explanation and demo can be found here

https://youtu.be/q4RDT-eKImU (by Budgie Synths)

Difficulty to build: Medium, no manual yet (prototype)

Budgie Synths Greenfinch

I got this filter from a fellow designer. It’s still in the prototype fase and I’m one of the lucky ones to test it. It’s a really nice filter. It resemble the MS-20 filter when listening to it. It have to double check with Budgie is it’s based on that design. It has low pass, band pass and high pass output’s. It can overdrive the resonance quite a lot. I like this one and when it hits the stores be sure to check it out. Don’t know exactly why it’s call Greenfinch but I think Budgie names it’s modules after birds.

Difficulty to build: Medium, no manual yet (prototype)

MFB dual LFO

I bought this LFO mainly because of the reset function. I really enjoy using this LFO in my patches. I think it’s one of the best LFO out there, but hey I’m a MFB fanboy. The switch can be used to trigger the second LFO from the first one. The options this LFO got are missing on a lot of other LFO’s

https://youtu.be/OEa18OEaMfI (not my video but some patch tips with this LFO)

Difficulty to build: No DIY. Bought it

Erica Synths Bassline

I like the sound of this one. It sometimes remind me of the 303 acid sound. It isn’t quite the same but it can lean to that specific sound. It was a small disaster to build. Lot’s of parts and I just don’t like it when the resitors are standing up. But just because of the sound I might build a second one. This module is open source and on github.

https://youtu.be/gA3WmvU1QJ8 (not my video)

https://github.com/erica-synths/diy-eurorack

Difficulty to build: Hard

Haraldswerk Voltage Reference

I mainly use this module to tune my VCO’s. But paired with the precision adder it can also be use to transpose pitch. This module outputs octaves and semi tones. I had to do a little trick to make the headers fit. Maybe will do a build report on this one, so others can do the same cause I still don’t know how the header should fit without this trick.

Difficulty to build: Easy /Medium

Haraldswerk CV Mover

I use this module to transpose pitch in some of my patches. But the description on Haraldswerks site says it can do a lot more. Maybe I have to play with it a little more just to test all of that out. I does what the name says it will do, move CV. Harald also release a Quad version to pair with the LFO and VCA. Didn’t build that one yet.

https://www.haraldswerk.de/Utilities/CV_Mover_Euro/CV_Mover_Euro.html
https://www.haraldswerk.de/Utilities/Quad_CV_Mover/Quad_CV_Mover.html

Difficulty to build: Easy