Berlin 1989 - Synthesizer Xaoc - Free user manual and instructions
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| Product Type | Dual Voltage Controlled Amplifier (VCA) Module |
| Brand | Xaoc Devices |
| Model | Berlin 1989 |
| Category | Synthesizer Module |
| Width | 10 HP (50.5 mm) |
| Depth | 25 mm (approx.) |
| Weight | 120 g (approx.) |
| Power Consumption | +12V: 45 mA, -12V: 30 mA |
| Audio Inputs | 2 (CH1 and CH2) |
| CV Inputs | 2 (CH1 and CH2) |
| Audio Outputs | 2 (CH1 and CH2) |
| Controls | 4 knobs (Bias and CV for each channel) |
| Response Switch | Linear or exponential curve |
| Link Function | Channels can be linked internally for mono operation |
| DC Coupled | Yes, suitable for both audio and CV processing |
| Maximum Gain | +20 dB |
| CV Range | 0 to +5 V (typical) |
| Audio Level | 10 Vpp maximum |
| Construction | High-quality components, designed and made in Poland |
| Safety | Disconnect power before patching or handling module |
| Maintenance | Clean with a dry cloth; avoid liquids and sprays |
| Repairability | Serviceable design; contact Xaoc for parts or support |
Frequently Asked Questions - Berlin 1989 Xaoc
What is the Xaoc Devices Berlin 1989?
The Berlin 1989 is a dual voltage-controlled amplifier (VCA) module designed for Eurorack modular synthesizers. It has two independent amplifier channels that can be controlled via CV, making it ideal for shaping audio signals and control voltages.
What are the main features of the Berlin 1989?
Key features include two VCA channels, a linear/exponential response switch, CV attenuators, bias knobs for initial gain, and an internal link function for mono operation. It is also DC coupled, allowing it to process both audio and control voltages.
How does the Berlin 1989 work as a VCA?
Each channel passes an audio or CV input through an amplifier stage whose gain is set by a bias knob and further modulated by the CV input. The response switch selects either a linear or exponential curve, affecting how the control voltage changes gain.
Can the Berlin 1989 be used to process CV signals?
Yes, because it is DC coupled, the Berlin 1989 can accept and amplify control voltages as well as audio. This makes it useful for scaling, inverting, or applying CV-controlled attenuation to modulation signals.
What is the difference between linear and exponential response modes?
In linear mode, the gain increases proportionally with the control voltage, producing a predictable and even response. In exponential mode, the gain changes more dramatically at higher CV levels, closely mimicking the behavior of analog synthesizer circuits and often preferred for percussive envelopes.
How many HP wide is the Berlin 1989?
The module is 10 HP wide (about 50.5 mm), making it a compact addition to any Eurorack case while still offering two full VCA channels.
What are the power requirements for the Berlin 1989?
It requires a standard Eurorack power supply with +12V and -12V. Typical consumption is 45 mA on the +12V rail and 30 mA on the -12V rail. Always check your case's power capacity.
Can I link the two channels for a single VCA?
Yes, the link function internally connects both channels, allowing you to use them as a single VCA with two available inputs and a combined output, which is great for stereo or parallel processing with one control source.
How do I set the initial gain and CV amount?
Each channel has a Bias knob (for initial gain) and a CV knob (for attenuating the incoming CV signal). Start with both at minimum, then adjust bias for the desired base level and add CV for dynamic modulation.
How do I clean and maintain the Berlin 1989?
Use a dry, lint-free cloth to wipe the front panel and knobs. Avoid using water, solvents, or sprays. Ensure the module is powered off and disconnected before cleaning or handling to prevent damage.
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USER MANUAL Berlin 1989 Xaoc
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Product information
Brand : Xaoc
Model : Berlin 1989
Category : Synthesizer