Erica synths Black series User manual

SCALE A SCALE B

OFFSET A OFFSET B

IN A 2

IN A 1

IN A 3

IN B 2

IN B 1

IN B 3

SCL A

MIX A

MIN

SCL B

MIX B

MAX

BLACK CV TOOLS

÷2 +2 ÷2 +2

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, osetting, 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 oset

Min and Max function extractor

+5V reference

LED bioplar level indicators

Conﬁgurable features – see the

description below

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 oset control

knobs. At 12 o’clock the

signal on SCL outputs has

0 oset (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 oset is added to

the incoming signal (you

can basically transpose

incoming CV, for example

or oset the middle

point of the sinewave

above 0V), turning the

knob CCW will result in

the negative oset

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!

These are inputs of

the second

mixer (B)

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 eect) and Oset

circuit that osets 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

These are A and B mixer

outputs, the mixer works

with preset gain of 1

TECHNICAL SPECIFICATIONS:

Mixer gain …………….................…………………….................………… 1 (unity)

Booster gain (Scale)’’.……………….................………… adjustable up to 2

Oset…………………….................……………..………….................…………+-10V

Power consumption.............………….................……….… +42mA, -38mA

Module width…………………….................………….................…………....10HP

Module depth…………………................…..………….................…………35mm

BLACK CV TOOLS

JUMPER CONFIGURATION

SAFETY INSTRUCTIONS

DISPOSAL

Please follow the instructions for use of this Erica Synths module

below, ‘cause only this will guarantee proper operation of the

module and ensure warranty from Erica Synths.

Water is lethal for most of the electric devices, unless they

are made waterproof. Erica Synths module is NOT intended

for use in a humid or wet environment. No liquids or other

conducting substances must get into the module. Should this

happen, the module should be disconnected from mains power

immediately, dried, examined and cleaned by a qualiﬁed

technician.

Do not expose the module to temperatures above +50° C or

below -20° C.

Transport the instrument with modules installed carefully, never

let it drop or fall over. Warranty does not apply to modules with

visual damages.

The module has to be shipped in the original packaging only.

Any module shipped to us for return, exchange and/or warranty

repair has to be in its original packaging. All other deliveries

will be rejected and returned to you. Make sure you keep the

original packaging and technical documentation.

You will ﬁnd Erica Synths terms of warranty at

http://ericasynths.lv/en/terms/

Items for return, exchange and/or warranty repair have to be sent

to: Erica Synths, Andrejostas Str. 43, Riga, Latvia, LV-1045

This device complies to the EU guidelines and is manufactured

RoHS conforming without use of lead, mercury, cadmium and

chrome. Nevertheless, this device is special waste and disposal in

household waste is not recommended.

Designed and made in Latvia.

User manual by Girts Ozolins@Erica Synths.

Design by Edmunds Pavlovskis.

Copying, distribution or any commercial use in any way is

prohibited and needs the written permission by Erica Synths.

Speciﬁcations are subject to change without notice.

In case of any questions feel free to contact us via

e-mail: [email protected]

Check out other Erica Synths modules & devices at

www.ericasynths.lv

NORM A1 jumper. default: not set. This jumper provides an option for CV MIXER A to be capable of optionally osetting the output up by +5V or down

by -5V. This is very useful in cases where 0..+10 CV range needs to be moved to -5..+5V range and vice versa. Just set this NORM A1 jumper to “+5V” or

“-5V” side and then when nothing is plugged in IN A 1 socket, mixer’s output will be oset by +5V or -5V respectively, and this way provides precision

oset to any CVs connected to IN A 2 and/or IN A 3 inputs. And whenever you will need to mix CVs without oset, just use the IN A 1 socket, and this oset

will not be applied.

MATH IN A and MATH IN B jumpers. default: set to “mix”. These jumpers allow to select wether MIN and MAX functions are operated from MIX or

SCALED signals. There are individual jumpers for A and B input terms so that you can choose to have only one to be scaled, and one to be direct from a

respective mix. This is useful, for example, if you want to use the MIN or MAX as a limit function with manually adjusted threshold using the OFFSET knob.

As an another example, you can use MIN and MAX functions for some wild transformations when both input terms are set to SCALED.

MIN OUT SELECT and MAX OUT SELECT jumpers. default: set to “min” and “max”. Whenever you might need more MIX outputs to be used as a splitter,

or want a simultaneous inverse output of a respective MIX output, just set these jumpers and MIN and MAX outputs will become additional mix or inverse