Year: 2019

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).… Read more

As the rev. 2 prototype of Steve’s MS-22 is nearing its final form, I am happy to release its specifications :

• General features
  • Dual VCF inspired by the Korg MS-20 OTA filter
  • Low-pass into high-pass configuration
  • Innovative modulation matrix allows CV control over all parameters
  • Cut-off frequencies can be linked, resulting in a band pass filter with controlable bandwidth
  • Bipolar monitoring LEDS for the LP, HP, resonance and gain CV signals
  • One of the best functionality-to-size ratios in Eurorack with a width of 4 HP and a depth of 45 mm
• Connections
  • Filter input
  • Filter output
  • Frequency CV input (FCV)
  • Auxiliary CV input (ACV)
• Controls
  • LP cut-off frequency (“frequency”)
  • HP cut-off frequency / BP bandwidth (“spread”)
  • Resonance : from mild to screamy
  • Gain : from warm to asymmetrical saturation
  • LP Frequency CV (FCV) attenuator
  • Auxiliary CV (ACV) attenuator
  • LP-HP link switch : 0%, 50% or 100%
  • Modulation Matrix switches, routing ACV to HP cut-off / spread, Gain and resonance : +ACV, off, or -ACV (inverted)
  • Calibration trimmers for the HP and LP filter are available from the side of the module.

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!