Related Manuals for CubuSynth Dual CS-20 VCF
Summary of Contents for CubuSynth Dual CS-20 VCF
- Page 1 CubuSynth Dual CS-20 VCF – Manual PCB March 2023 Dual CS-20 VCF Dual / Stereo Multimode VCF with Self-oscillating Resonance and intuitive Routing and CV modulation Matrix Manual March 2022...
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Page 2: Table Of Contents
10. Calibration ………………………………. Page 7 Limited Warranty: CubuSynth guarantees this product to be without defects in materials and workmanship for a period of one year from the date of purchase (proof of purchase/invoice needed). Malfunctions due to improper supply voltages, incorrect or reversed Eurorack power cable connection, misuse of the product, removal of knobs, changing faceplates, or other causes determined by CubuSynth are the user's responsibility and are not covered by this warranty. -
Page 3: Introduction
PCB March 2023 1. Introduction The CubuSynth Dual CS-20 VCFis a dual / stereo multimode VCF / Phaser / VCO, inspired by the legendary Korg MS-20, with CV control over frequency and resonance. The resonance can self- oscillate and features a 1V/Oct input, stable over at least 2~3 octaves. -
Page 4: Installing The Module
CubuSynth Dual CS-20 VCF – Manual PCB March 2023 4. Installing the Module - Make sure you have 10 hp (50mm) space in your Rack. - Turn off the Power from your system and unplug Mains Power connection. - Connect the Eurorack Power Cable into your Bus-Board via 16-pin connector (Correct Orientation!) and via 10-pin connector to the module. -
Page 5: Main Controls
CubuSynth Dual CS-20 VCF – Manual PCB March 2023 5. Main Controls The three Main controls affect both Filter cores equally. These are the Main Frequency knob, the resonance knob and the 1 V/ octave input. When the Resonance knob (Q) is set above middle position it will start to self-oscillate. -
Page 6: Modulation Matrix
CubuSynth Dual CS-20 VCF – Manual PCB March 2023 7. Modulation Matrix The CV inputs are normalled in a way, that you can modulate frequency and resonance of both filter cores with only one CV signal. The normalization path is visible by the silver arrows on the front panel. -
Page 7: Internal Routing Map
CubuSynth Dual CS-20 VCF – Manual PCB March 2023 9. Internal Routing Map Page 6... -
Page 8: 10. Calibration
CubuSynth Dual CS-20 VCF – Manual PCB March 2023 10. Calibration The Calibration process contains the two trimmers for the 1V/octave scaling and an Offset for the second Filters frequency to have them both on the same resonant frequency. V/O Trim1: 1. - Page 9 Dual CS-20 VCF March 2023 Written and illustrated by Ruben Sponar The CubuSynth Dual CS-20 VCF was designed by Ruben Sponar, from first prototype in December 2021 to the finished module in March 2023. A few honorable mentions: The main Filter circuit is based around the Korg MS-20 Filter.
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