Erica Synths Black LPG is our take on Lowpass Gate idea – it’s designed from scratch featuring 2nd order lowpass VCF (the original Buchla lowpass gate was 1st order VCF) and VCA combo with distinct resonance circuit on top. Voltage control over VCF cutoff frequency/VCA offset and mode (VCF/VCF+VCA/VCA), as well as built in decay envelope generator makes it a versatile module for sound shaping in any modular setup.