Today, ThreeTom Modular is releasing the “Steve’s MS-22 dual VCF” module for eurorack.
The MS-22 is a dual voltage controlled filter, inspired by the classic Korg MS-20 filter, with an innovative modulation matrix and one of the highest function-to-hp ratios in the land of Eurorack.
The MS-22 contains two dedicated filter circuits, one low-pass and the other a high-pass. These are configured in series, the high-pass going into the low-pass. This configuration allows a unique duophonic fighting resonance behaviour (see the demo video below). The cutoff frequencies of both filters can be CV’ed. Compared to most bread-and-butter MS-20 clones, the MS-22 is twice the amount of filter condensed down into half the package (4HP).
Furthermore, the MS-22 also has the following unique selling points :
The MS-22 has a unique modulation matrix that allows to configure many internal patches without using cables. Simply put, the modulation matrix (12-14) lets you route whatever modulation source you have connected to the ACV (auxiliary) input (e.g. an external envelope, LFO, S&H etc) to any or all of the following: HPF cutoff frequency, resonance amount, and input gain amount, either inverted or not
The MS-22 has a unique link switch, which links the cutoff frequencies of the low-pass and high-pass filters in two different ratios. This creates two flavours of band-pass filters, of which the bandwidth can be tweaked and CV’ed. The switch itself also serves as an awesome performance effect as you can use it to create an instant drop. I demonstrate this near the end of this video.
Steve’s MS-22 is built to order in limited batches, the current batch consists of 10 units. Fully assembled modules are available for 225 EUR (excl. shipping). A limited number of DIY PCB+panel sets are available for 50 EUR (incl. shipping).
More information (videos, specs, manual) can be found on the product page. Orders can be placed over e-mail, as described here.
ThreeTom Modular is a small boutique shop based in Belgium, run by Tom Verschooten, as a “hobby that go out of hand”, parallel to his full-time job as an Electronics engineer.
A while ago I made an interesting little demo video with Michael Claessens, a talented Belgian Harmonica player. We combined his digital harmonica with my modular synthesizer with a patch featuring Steve’s MS-22. I think this really turned out spectacular. Have a look!
Here are some patch notes:
Michael is playing a Lekholm DM48 Digital Chromatic Harmonica (https://www.lekholminstruments.com/).
We connected the DM48 to the Endorphin.es Shuttle Control over USB host.
We use two slightly detuned saw oscillators from the Intellijel Atlantis, which are mixed at 50% each and then sent into the input of Steve’s MS-22 dual VCF.
The DM48’s breath MIDI CC is converted to a smoothed unipolar CV and routed in to the MS-22’s FCV jack, modulating the cut-off frequency of the low-pass filter.
The MS-22 is set with a high gain and moderate resonance.
The high-pass filter is set at a low frequency, not affecting the signal.
The output of Steve’s MS-22 is then sent into a Zlob VniCursal VCA, modulated by the envelope of the Atlantis (triggered by the Shuttle Control).
Reverb was added by means of the Tip Top Z-DSP with the Valhalla Reverb card.
As a follow-up to my previous post I will show how to convert the sample pack of Music Thing’s Radio Music so it can be used with the Erica Sample drum (or any other sampler). You can find the download link for the converted sample pack at the bottom of the post :)
I have received new and revised prototype PCB’s for Steve’s MS-22. Next week, I am planning to assemble these in between going to see Gregory Porter at Gent Jazz and Neil Young at the Sportpaleis in Antwerp (good times ahead!). In addition to the PCB’s, I also had new front panels manufactured in a sleek matte black finish. In the picture below you can get an impression of what the final product will look like. Stay tuned!
On June 15th, I’ll be going to the Pulse Festival in Opwijk. I’m hoping to meet lots of interesting people there and listen to inspiring music. I’ll also be taking part in the workshop organized by Skull and Circuits, another Belgian Eurorack builder. During the workshop, I’ll be building three VCF1 modules (two for myself, one for a customer).