Erica Synths Black Quad VCA

Name: Black Quad VCA
Brand: Erica Synths

Four independent VCAs with automatic output mixing

10 HP Eurorack module

A compact four-channel VCA with pre-emphasis–de-emphasis circuits, automatic output mixing, and configurable CV addressing; without CV it also works as a signal mixer.

Features

4 independent VCAs
Manual signal and CV level adjustment
Pre-emphasis–de-emphasis circuits on all four channels
Automatic output mixing
Configurable CV addressing

Controls & Jacks (16)

CV1— Control-voltage input for VCA channel 1; it is always independent and normalled to ground when unpatched.
LEVEL 4— Sets channel 4 CV level; with no CV patched, manually opens VCA 4, effective from 12 o'clock.
CV4— Control-voltage input for VCA channel 4; its rear jumper can make it independent or normal it from CV3.
IN2— Audio signal input for VCA channel 2.
LEVEL 3— Sets channel 3 CV level; with no CV patched, manually opens VCA 3, effective from 12 o'clock.
IN1— Audio signal input for VCA channel 1.
IN3— Audio signal input for VCA channel 3.
CV2— Control-voltage input for VCA channel 2; its rear jumper can make it independent or normal it from CV1.
IN4— Audio signal input for VCA channel 4.
OUT2— VCA channel 2 output; when unpatched, its signal is automatically mixed into OUT3.
CV3— Control-voltage input for VCA channel 3; its rear jumper can make it independent or normal it from CV2.
OUT1— VCA channel 1 output; when unpatched, its signal is automatically mixed into OUT2.
OUT3— VCA channel 3 output; when unpatched, its signal is automatically mixed into OUT4.
LEVEL 1— Sets channel 1 CV level; with no CV patched, manually opens VCA 1, effective from 12 o'clock.
OUT4— VCA channel 4 output and final automatic mix output.
LEVEL 2— Sets channel 2 CV level; with no CV patched, manually opens VCA 2, effective from 12 o'clock.

How-To Guides

Mix all four VCA channels

Explore the interactive Black Quad VCA panel on BleepDex — tap any control to learn what it does.