Tag: review

Limaflo MotoMouth – DIY Build

Limaflo MotoMouth Eurorack Module - DIY Build

Completed MotoMouth Module Front View

As the summer is ticks along, we decided to take on a relatively new module. The LimaFlo MotoMouth Formant Filter. MotoMouth was originally a Kickstarter project that was first launched in March of 2017, and thanks to its backers, the MotoMouth was born. Our buddies over at Synthrotek were one of the first to have the DIY kits and you better believe we had to get our hands on this one and line it up for our final July build. 

Before we get into the build notes, videos and audio samples, you are probably wondering what in the world that the MotoMouth does. The Motomouth is described as an analogue 3-Band, Sedra + Espinoza Bandpass Filter (DABP) with resonant frequencies that are tuned to the same resonant frequencies that are found in the human mouth and nose cavities.

These frequencies can be varied, independently, to form different ‘mouth shapes’, to emulate vowels such as A, E, I, O and U.  In the end, this module can essentially emulate 16 vowels and ‘morph’ or ‘glide’ between each vowel using a single Control Voltage input (1V/Oct), and a Gate to ‘snap’ to each vowel when required. 


Rat King Modular SEQ (Random Sequencer) – DIY Build

RK Random Sequencer (SEQ) Modular Build

Rat King Modular SEQ DIY Kit

For our first build of July, we take on the Rat King Modular Random Sequencer (or SEQ as it’s known). This build is hot on the tails (no pun intended!) of the EVENT that we completed last month and we have to admit it . . . it was just as fun to build as the EVENT.

The Random SEQ panel and PCB are laid out similarly to the EVENT with its matte black panel and mustard yellow PCB. The blue hue from the LED below the panel appears frosted as the LED is not a panel through mount.

One might question how many more modules the Rat King will make… all we can hope for is a lot more!

As for the build itself, it was a quick and easy build for the advanced or intermediate builder lasting only about an hour. For the novice builders, this is a great one to get your feet wet with as the BOM and quick setup instructions (provided with the kit or available online) allow for easy reading. 


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…


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