Category: Updates

Rat King Modular EVENT – DIY Build

RK EVENT Eurorack Modular Build

Rat King Modular - EVENT DIY KIT

For the final build of June 2019 we took on the Rat King Modular EVENT, which to our surprise was a hidden gem for our eurorack system. The EVENT is the first eurorack module by Rat King Modular and we have to say, it’s a little beast. The panel is beautifully designed and the layout of the knobs and the jacks makes the EVENT easy to maneuver while recording or performing.

The matte black design with gold highlights is backed by a mustard yellow PCB who’s layout is easy and concise to follow. The dual sided PCB accepts solder like a sponge which makes this build a hassle free and not to mention fun build. So lets get onto the build…


BEFACO KICKALL Eurorack Module – DIY Build

BEFACO KICKALL Eurorack Module - DIY Build

Befaco Kickall Packaging

As we head into the summer months here at fiN Studios, we take on our second build of the month … the Befaco KICKALL Eurorack Module. 

The KICKALL is a 6HP compact synth voice that features damn near everything you need to make a big fat KICK sound. This module is a powerhouse. It contains a VCO that tracks voltage per octave, an aggressive wave shaper and has the ability to use CV to control envelopes and pitch.

CV is controllable from Sine to Square wave shaping and the envelope decay for the main VCA is also CV controlled. So, what does this mean?  It’s a badass kick drum synth! 

What about that design?

Before we get into the logistics of the build, we want to take a moment to appreciate the Befaco KICKALL dual PCB layout. As a pretty complex and time consuming build, the two PCBs, once joined are a tight fit.  One would question how they did this so well, but designers uncanny knack to make each piece integrate with the other is amazing. You have to take a step back and appreciate its ingenuity and design.

This can also make for a difficult time for the novice DIYer. You have to be precise with your soldering points. Even as a more experienced builder, we took the time to finesse the module PCBs together.  The main thing here is that you want to make sure that you have no high tips in your solder points as they can short the boards or cause unwanted issues.  With all that being said, let’s get onto the build…


Nonlinear Circuits Bong0 Module – DIY Build

NLC Bong0 Module - DIY Build

As our summer kicks off,  we take on a new build … the Nonlinear Circuits Bong0 Module.  We decided to take a break from the hole-through components and try out our soldering skills with SMD components. Surface Mount Devices or SMD are different from your basic hole-through builds in that the components are mounted as stated … on the surface of the PCB board.  The actual terminology for this is known as SMT or Surface Mount Technology.  

So what’s the big difference between hole-through vs surface mount components?  Usually the size of the component.  SMD components are small… some of them are VERY small. One’s choices in tool selection is also different as well.  You can use solder paste and hot air guns or you can use small gauge solder and your trusty iron if you choose to.  For the NLC Bong0, we chose small gauge solder and good ol iron sides. 

Ok … enough of the technical jargon, let’s get onto the NLC Bong0 and the build/review itself!


Synthrotek TURN Eurorack Module DIY Build

Synthrotek TURN - Power Management Module DIY Build

Synthrotek TURN - Instagram photoAre you having power issues with your Eurorack system?  Do you ever experience flashing lights of doom when you power on your system? The Synthrotek TURN might have you covered!

Let’s face it … rack systems draw and use a lot of power. Whether this be on start up or whether it be through a sustained time period (during recording, tinkering, performing, etc). Much like the Windows screen of death or the Mac spinning rainbow wheel; rapid blinking lights or no lights upon startup of a rack system can be VERY stressful. This is something that we can all face from time to time and trying to find the source of the issue can be a real task. Things like flipped power cables, bad solder joints and overloaded power rails can all be culprits. With all of these potential issues causing power draws, the gang out at Synthrotek have come up with a solution to tackle power management upon startup. Introducing the Synthrotek TURN.


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