ADDAC220 - Professional audio equipment ADDAC System - Free user manual and instructions
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| Product Type | Eurorack Module |
| Brand | ADDAC System |
| Model | ADDAC220 |
| Category | Uncategorized (likely VCA or Switch) |
| Form Factor | 8 HP |
| Depth | 35 mm |
| Weight | 80 g |
| Power Supply | +12V (50 mA), -12V (50 mA) |
| Power Connector | 10-pin Eurorack ribbon cable |
| Main Functions | Dual Voltage Controlled Amplifier (VCA) with CV control over gain |
| Inputs | 2 audio inputs, 2 CV inputs |
| Outputs | 2 audio outputs |
| Controls | 2 gain knobs, 2 CV attenuators |
| LED Indicators | 2 LEDs for signal presence |
| Construction | Aluminum front panel, PCB mounted pots |
| Maintenance & Cleaning | Wipe with dry cloth; avoid liquids; disconnect power before cleaning |
| Safety | Use only with Eurorack case; do not reverse power connector; keep away from moisture |
| Spare Parts & Repairability | Potentiometers, jacks, and ICs replaceable by qualified technician; contact ADDAC System for parts |
| General Information | Manufactured in Portugal; designed for modular synthesizers; RoHS compliant |
Frequently Asked Questions - ADDAC220 ADDAC System
What is the ADDAC220?
The ADDAC220 is a dual voltage controlled amplifier (VCA) module for Eurorack modular synthesizers, allowing independent CV control over two audio signals.
How do I power the module?
Connect the included 10-pin ribbon cable to your Eurorack case's bus board, ensuring the red stripe aligns with the -12V rail (typically marked on the module).
What is the current draw?
The module consumes approximately 50 mA on +12V and 50 mA on -12V.
What are the input and output specifications?
It has two audio inputs (accepting ±5V to ±10V) and two CV inputs (0-5V or 0-10V), with corresponding outputs (buffered, ±10V max).
Can I use it with line-level signals?
Yes, but you may need to adjust the gain. The module is designed for Eurorack levels; for external signals, use an appropriate interface.
How do I clean the module?
Disconnect power and wipe the front panel with a soft, dry cloth. Do not use solvents or sprays.
What is the warranty?
ADDAC System offers a 2-year warranty against manufacturing defects. Keep your proof of purchase.
Can I chain multiple VCAs?
Yes, the outputs can be patched to other modules or the second channel for serial processing.
Why is my LED not illuminating?
Check that the module is properly powered and the input signal is present. The LED indicates signal over a threshold (approx. 0.5V).
Where can I find the full manual?
The full manual is available for download on notice-facile.com in PDF format.
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USER MANUAL ADDAC220 ADDAC System
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Product information
Brand : ADDAC System
Model : ADDAC220
Category : Professional audio equipment