The VC F3DB is a six-band, voltage-controlled fixed filter bank capable of self-oscillation, crazy distortion, envelope following, and much more.
Designed to emphasise dissonant intervals, the frequencies roughly line up with: F2 (88Hz), B3 (250Hz), F#5 (750Hz), C6 (1kHz), F7 (2.8kHz), A8 (7kHz). Active filters with opamps give each band a robust presence. The 88hz is a low pass -24db/oct and 7k is a high pass -24db/oct, with the middle ranges being -12db/oct band pass filters all with mild resonance.
The inputs have hard and soft clipping - similar to circuits found on guitar pedals, and there is enough gain to boost line level signals. Access a unique feedback clipping circuit with the GFB switch which is adjusted using the Feedback knob. Capable of self-oscillation, the rate spans from LFO rate to audio rates. Each of the bands are able to be muted and clipped using the top switches. CV inputs control the VCA for each of the bands and when you approach the +8v range, they will start to overdrive.
All six bands have dedicated envelope followers and outputs letting you create interesting reactive sounds throughout your system. A second feedback knob takes the sum of all filter banks and feeds it back into the input clipping circuit, this can be controlled via CV giving it VCA functionality. Using the Feedback In, you can break the bands' normalization and feed individual frequencies into the Feedback In for high resonance, whistle tones.
Features
- 6 Band fixed filter bank
- Silicon diodes used for all clipping circuits
- Soft and Hard clipping on the input
- Frequency bands: 88Hz, 250Hz, 750Hz, 1kHz, 2.8kHz, 7kHz
- Odd and Even outputs let you create stereo spreads
- Dedicated envelope followers for each frequency
Product Specs
- Item Number: 34704
- Make: Żłob Modular
- Model: F3DB Eurorack Fixed Filter Bank Module
- Condition: Brand New
- Finish: Black
- Categories: keyboards-and-synths ⇒ eurorack
- Function: Distortion Dual/Stereo Envelope Follower Equalizer Filter
- Made In: United States
- MPN: ZLOB16
- Modular Grid: Eurorack ⓘ ＋
- Dimensions: 16 HP 45 mm deep
- Power: 75 mA +12V 75 mA -12V 0 mA 5V