Erica Synths Black Series Manual

THANK YOU FOR CHOOSING ERICA
SYNTHS BLACK SERIES MODULE!
Erica Black Series include high-end,
unique functionality and superior
quality modules. Only the best, highest
quality components are used, all
inputs and outputs are protected
against undesired overvoltage. When
designing Black Series, we put design
and usability superior. Big knobs are
assigned to key functions of the module,
which makes Black Series ideal for live
performances. Enjoy!
Erica Synths Black CV Tools is full
analogue CV and audio processor
module designed for advanced
manipulations with signals – mixing,
scaling, offsetting, waveshaping, etc.
The module has several configurations
achievable via jumpers on the back
of the module.

FEATURES:

2x3 channel audio and CV mixer with
unity gain
2x attenuverters/boosters and
bipolar offset
Min and Max function extractor
+5V reference
LED bioplar level indicators
Configurable features – see the
description below

TECHNICAL SPECIFICATIONS:

Mixer gain ..................................................................................... 1 (unity)
Booster gain (Scale)'' . ............................................... adjustable up to 2
Offset...................................................................................................+-10V
Power consumption....................................................... +42mA, -38mA
Module width......................................................................................10HP
Module depth...................................................................................35mm
These are offset control
knobs. At 12 o'clock the
signal on SCL outputs has
0 offset (for example,
if regular -5V - +5V
sinewave LFO is applied
to the any of mixer inputs,
the signal on the relevant
SCL output will be the
sinewave oscillating
around 0V), turning
the knob CW up to 10V
positive offset is added to
the incoming signal (you
can basically transpose
incoming CV, for example
or offset the middle
point of the sinewave
above 0V), turning the
knob CCW will result in
the negative offset
These are inputs of the
first mixer (A). If nothing is
patched in IN A1,
the +5V reference voltage
will appear on MIXA
output. You can also use
this as a CVs scaler to turn
any bipolar Cvs patched in
IN A2 into unipolar 1V/oct
inputs on VCOs or
opening VCAs!
BLACK CV TOOLS
SCALE A SCALE B
÷2 +2 ÷2 +2
OFFSET A OFFSET B
IN A 1 IN B 1 MIX A MIX B
IN A 2 IN B 2 SCL A SCL B
IN A 3 IN B 3 MIN MAX
BLACK CV TOOLS
These are inputs of
the second
mixer (B)
Scale A and Scale B knobs
adjust attenuation/boosting/
inverting levels for each
mixer output.
At 12 o'clock there will be no
signal on SCL output. Turning
the knob clockwise, the signal
level will increase until it's
boosted to gain 2. Turning the
knob counter clockwise, the
signal is inverted
and gradually boosted to
the gain 2
These are A and B mixer
outputs, the mixer works
with preset gain of 1
Scaled outputs take the
relevant mixer output
signal and pass it through
Scaler circuit (it's basically
attenuverter with gain 2 –
it can boost and invert the
incoming signal. Boosting
large amplitude audio
signals will result in over-
drive effect) and Offset
circuit that offsets audio
and CV signals in positive
or negative directions
These outputs derive
Maximum and Minimum
curves of MixA and MixB
signals. If several CVs are
applied to the inputs, Max
and Min curves will be
seemingly random CVs
that reflect interaction
between MixA and
MixB; if audio signals
are applied, the result on
Min and Max outputs is
extreme waveshaping