Deuxd

Dual X-Mod VCF with Pre/Post Cross Modulation

**Deuxd (DUDE) is a dual filter that encourages stereo audio-rate modulation, experimentation and can easily be configured in number of ways. **

• 2 Completely Independent LP/HP VCFs
• True stereo VCF with global cutoff control + offset per channel
• Mono to stereo signal processor
• Stereo to mono signal processor
• Variable width bandpass filter with dual resonant peaks
• Freaky feedback machine with 2 flavors of overdrive and FM
• Stereo pingable-thing
• Dual FM Oscillator / Drone

Audio Input 1 (left side) is normalled to Audio input 2 (right side). This let's you easily process 1 signal with two separate filters. Audio 1 is also normalled to FM input 2. To break either connection, simply patch a cable into the respective input jacks. Similarly, Audio input 2 is normalled to FM input 1. This means that each signal input is ready to frequency modulation the opposite side's filter cutoff. (pre XFM)

The top Frequency controls (top right and top left) act as the primary cutoff for each side's filler. Use the global Cutoff (large knob top center) to offset the position of both filter's cutoff position at the same time. The global cutoff control can be used in one of two modes: SYNC - This will change the filter's cutoff of both sides in parallel with one another. OPPOSE: when switched to Oppose, the right side filter will receive inverted control voltage from both the large cutoff knob and signal patched into the Cutoff jack.

When using the Sum (mono) output, you can switch between two flavors of diode clipping (Dirty and Filthy) :)

For bandpass operation, switch one side to High-pass and the other side to Lowpass (results change depending on which side is LP/HP) patch a signal into either filter's audio input, then patch the output the starting filter to the input of the other filter. You can now pull your audio from either the 2nd filter’s output or the SUM output for added harmonics.

The X-mod knob is hardwired, this circuit isolates the output from each side, sends one signal to the cutoff of the opposite side, and visa versa. (post XFM)

For dual pinging fun, patch a slow moving square wave into the audio inputs. the resonance controls should be at about 10:00, just before self oscillation. You will get different results depending on how the internal FM circuits are set. also experiment with pinging while in dual resonant peak bandpass config.

https://www.etsy.com/listing/4342868502/deuxd-dual-voltage-controlled-filter