MATRIXSYNTH: Delta VCF Euorack Filter Module Korg Clone Demo (Poly-61)

Sunday, September 10, 2017

Delta VCF Euorack Filter Module Korg Clone Demo (Poly-61)


Published on Sep 10, 2017 gstormelectro


"The Delta VCF is my faithful eurorack clone of the Korg Delta synthesizer filter. The lowpass filter circuit was also found in the Poly-61. In this video I demonstrate the features and sound of the filter by running various signals, control voltages, and sequencing through it.

Features: Illuminated Frequency and Resonance Slider pots. Mix together two different input oscillators at the input jacks w/ signal attenuation/gain pots. These inputs can overdrive the filter. Modulate the filter cutoff with two different input control voltages w/ signal attenuation pots. Two select-able filter slopes: original 4-pole, and 2-pole. Two select-able filter modes: lowpass or bandpass. The filter is all analog, using the same OTA chips and dual transistor design of the original Delta.

Listening w/ headphones or quality monitors is recommended. Watch your levels, some resonance and filter overdrive settings may cause discomfort or strain your monitors. This demo was recorded direct to Tascam DR-05 through a Mackie mixer. No effects, no EQ, just some normalization on video edit."

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