ADDAC System - 604 Dual Filter
To make it more interesting we duplicated its circuitry to be able to use it in a stereo signal path.
To make it more versatile we added a switch to set the working mode from Stereo to Dual Mono where both filters can be used independently.
In Stereo Mode the Left Cutoff is used to control the Right Cutoff.
In this case the Right Cutoff Knob and CV Input are simply bypassed and will have no impact on the Right Channel operation.
This allows immediate sync of both filter frequencies when the Stereo position is engaged.
Optionally there’s a jumper in it’s back that, when placed, connects the Right Controls back to the Right CV control allowing the possibility to control the offset of the Right Channel Cutoff.
Resonance is independent on both Modes and still has to be set manually to match both channels.
Both the Audio and CV inputs are normalled from the Left into the Right channels.
As standard plugging any input to the Right channels removes this connection.
DIY-Kit-Type:
SMD-Kit-2. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. It includes SMD and through-hole parts! For build guide, more info, videos etc. please check the buttons below.
| Current draw +12 V [mA]: | 70 |
|---|---|
| Current draw -12 V [mA]: | 70 |
| DIY Level: | Easy/Medium |
| Depth [mm]: | 40 |
| Width [HP]: | 6 |
| Format: | 3U |
| Panel / Color: | Black Alu |
ADDAC develops advanced instruments for sonic expression.
We started back in 2009 with an ambition to explore the potential crossover between analog synthesizers and computers. Because our first creations sparked a lot of attention, we decided to work hard and put them in your hands.
Today our product line is focused on a new breed of hybrid synths, that make use of the best of both the digital and analog worlds. We've grown to be able to reach thousands of enthusiastic clients, friends and collaborators. Always looking into conceptualizing and developing the most exquisite instruments, we hope you're able to join and share this passion with us.
Our solutions can be found in many personal studio throught the world, owned by musicians in several planes of stardom. We especially appreciate seeing them being used in a very wide range of musical genres.
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