Black Double Bass - Musical instrument Erica Synths - Free user manual and instructions
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| Product Type | Analog bass synthesizer module |
| Format | Eurorack module |
| Module Width | 10 HP |
| Depth | 25 mm |
| Weight | 180 g |
| Power Supply | Eurorack bus (+12V / -12V) |
| Current Draw | +12V: 70mA, -12V: 40mA |
| Audio Outputs | 2 x 3.5 mm mono jack |
| CV Inputs | 6 x 3.5 mm jack |
| Main Function | Dual-voice subtractive synthesis |
| Oscillator | 2 x VCO (saw / square) |
| Filter | 2 x resonant low-pass VCF |
| Envelope | 2 x ADSR generator |
| LFO | 1 x LFO (multiple wave shapes) |
| Control Elements | Knobs and switches for real-time tweaking |
| Cleaning | Wipe with a dry cloth. Use isopropyl alcohol on a cloth for stubborn dirt. |
| Maintenance | Power off before cleaning or patching. |
| Safety | Only use with standard Eurorack cases. |
| Repairability | Open-source design; schematics available. |
| General Information | Designed and made in Latvia by Erica Synths. |
Frequently Asked Questions - Black Double Bass Erica Synths
Is the Black Double Bass a complete synthesizer voice?
Yes, it is a full voice module consisting of VCO, VCF, VCA and envelope generator, ready to be triggered from a keyboard or sequencer.
How do I power the Black Double Bass?
Connect the included 10-pin power ribbon to a standard Eurorack busboard. Pay attention to the red stripe orientation to avoid reverse polarity damage.
What is the current draw of this module?
It draws 70mA from +12V and 40mA from -12V. This must be considered when calculating your power supply budget.
Can I use the Black Double Bass with other Eurorack modules?
Absolutely. It accepts standard 1V/oct CV and gate signals, and outputs audio at modular level, making it compatible with any Eurorack system.
How should I clean the module?
Use a dry lint-free cloth to remove dust. For stubborn stains, slightly dampen the cloth with isopropyl alcohol and wipe gently. Avoid any liquids directly on the circuit.
Does the module need calibration?
No, the VCOs are factory calibrated to track accurately across several octaves. Re-calibration is only needed if a component is replaced.
What frequency range does the VCO cover?
The oscillator can go from sub-bass (around 20 Hz) to high frequencies, with a range of about 8 octaves, controlled by the frequency and CV controls.
Can I process external audio through it?
The Black Double Bass is a synthesis voice, not an effects module. However, you can route its output through external filters, effects or mixers.
What is the warranty period?
Erica Synths provides a 24-month warranty against manufacturing defects, covering parts and labor for proper use and handling.
Is the design open-source?
Yes, the module is built on an open-source concept. Circuit schematics and source code for any digital parts are available on the official website for advanced users.
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USER MANUAL Black Double Bass Erica Synths
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Product information
Brand : Erica Synths
Model : Black Double Bass
Category : Musical instrument