ADDAC System 604 Dual Filter

ADDAC604 DUAL FILTER - In great condition!

• Analogue two-channel multimode filter
• Switchable stereo mode
• Per channel: Controls for cutoff and resonance, cutoff CV input with attenuator, audio input and outputs for highpass, bandpass and lowpass
• Current consumption: 70 mA (+12 V) / 70 mA (-12 V)
• Width: 6 HP
• Depth: 40 mm

Description from ADDAC System:
"This versatile module has a switch to set the working mode from Stereo to Dual Mono where both filters can be used independently.

In Stereo Mode the Left Cut-off is used to control the Right Cut-off.
In this case the Right Cut-off 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."