Voltage controlled, 4 pole, lowpass filter, with the AS3320 at its core.

Frequency
Resonance
2x FM cv depth
1x RM cv depth
Input level
Resonance selector

2x frequency modulation cv input
1x resonance modulation cv input

Wavefolded resonance feedback loop, with a switch to select between a clean or wavefolded rez.

Input
Output

10hp
Depth: 32.5mm

+12v/GND/-12v

Made in Detroit.

https://die.systems/product/vcf/