Doepfer A-101-1 Vactrol Filter: overview (LMS Eurorack Expansion Project)

Published on Dec 29, 2017

"Also known as the 'Steiner' filter (as it’s an enhancement of a circuit Nile Steiner first published in 1974), this nice-sounding 2-pole multimode self-oscillating filter with vactrols on the cutoff and resonance inputs is unique in that it has a separate _input_ per filter mode, allowing the creation of alternate modes as well as frequency-dependent crossfades

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