TomaTekAudio Demos

This is a follow-up to this post where you will find details on TomaTekAudio's new modules. You can find them on Etsy here.

TomaTek Audio · TomaTek-Audio MMVCF demo

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TomaTek Audio · MMVCF Sweep Demo.

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Jesse Sep · Tomatek MMVCF Demos

"Thomas Hopman made an awesome Multimode Filter module for the Eurorack format which he was so kind to let me demo, so here are some soundbits I made using the different filter modes. Hope you like!

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A bit more on the signal path:

All audio demos are recorded using the following audio path:

Generator -> Tomatek MMVCF -> Erica Synths Black Hole DSP 1 -> Stereo out to Befaco Hexmix -> Befaco Output v3 -> Zoom H6

Most Demos are recorded using an input gain level of around 11:30 on the dail.

My system is a bit noisey and these demos are far from audiophile quality, but I hope they give the character and sound of the filter the attention they deserve.

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A bit more on the module:

The Tomatek Audio MMVCF.

a AS3320 based 12dB per Octave multi-mode filter module, with separate outputs for Low-Pass, Notch, Band-Pass and High-Pass.

Featuring:

- CV control over Filter Cutoff and Resonance, with a fixed V/Oct input, switchable attenuation/attenuversion on the FM input and attenuation on the Resonance CV input.

-Self-resonance with accurate temperature compensated V/Oct tracking over approximately 5 to 6 octaves.

-Input gain control with a soft-clipping circuit that kicks in at around the 12o'clock setting. Allowing for clean tones till unity-gain and soft-clipping and eventually hard-clipping the filter front-end at higher gain settings. When used in conjunction with a VCA before the filter, this will allow for a nice range of extra tones.

TomatekMMVCFDemos"

Eurorack Modules by TomaTekAudio

Update: demos posted here.

TomaTekAudio is a new maker from Amsterdam, The Netherlands.

You'll find their modules available at their Etsy shop here.

Details on the first three follow.

Tomatek-Audio MMVCF.

a High-end AS3320 based 12dB-per-Octave multi-mode filter module. With separate outputs for Low-Pass, Notch, Band-Pass and High-Pass. Based on the design of the OBx-A filter, but with several tweaks and improvements.

Featuring:

- CV control over Filter-Cutoff and Resonance, with a fixed V/Oct input, switchable attenuation/attenuversion on the FM-input and attenuation on the Resonance CV input.

- Self-Oscillation with accurate temperature compensated V/Oct tracking over approximately 6 octaves, which allows for a very nice playable sine wave.

- Input gain control with a soft-clipping circuit that kicks in at around the 12o'clock setting, with typical eurorack levels. Allowing for clean tones till unity-gain and soft-clipping and eventually hard-clipping the filter front-end at higher gain settings. When used in conjunction with a VCA before the filter, this will allow for a nice range of extra tones.

- Makes use of high quality parts where applicable (Wima Polypropylene capacitors for timing, Nichicon Bi-polar audio capacitors for ac-coupling, Panasonic and Nichicon electrolytics, Texas Instruments Audio-Grade Opamps and of course ALFA AS3320 filter chip).

- 8HP width.

- current draw: +12V 25ma, -12V 25ma, +5V 0ma.

- Skiff friendly at 35mm deep."

Tomatek-Audio Matrix-4x2.

a 4 input 2 output dc-coupled mixer, capable of mixing audio and/or cv sources. The Matrix 4x2 has several uses, including but not limited to: attenuation, inversion, dc-offset, dual cv-mixer, stereo audio-mixer, audio-mixer with effects send/return

Featuring:

- Switchable attenuversion/attenuation per output channel.

- Switchable dc-offset on input 4: +5V / off / -5V, allows for mixing in dc-offsets..

- Bi-polar led on each output channel for signal visualisation.

- Expansion headers on the back allows for chaining multiple Matrix-4x2 modules. This makes it possible to expand either the inputs and/or the outputs.

- Makes use of high quality parts where applicable (Panasonic and Nichicon electrolytics and Texas Instruments Audio-Grade Opamps).

- Skiff friendly!

TomaTek-Audio MULT

Simple passive multiple configured for 1x6/2x3 operation.


By changing solder jumpers it is possible to change it's configuration to 2x3 without normalisation or 1x7.

The panel is reversible.

see github for changing the default configuration of this multiple. https://github.com/thopman/passive-mult

All made with love in Amsterdam!