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ADDAC System ADDAC713 User guide

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Instruments for Sonic Expression
Est.2009
August.2022
USER’S GUIDE . REV01
ADDAC713
STEREO
DISCRETE
MIXER
INTRODUCING
From Portugal with Love!
ADDAC713 STEREO DISCRETE MIXER USER’S GUIDE
August.2022Revision.01
Welcome to:
page 2ADDAC SYSTEM
DESCRIPTION
ADDAC713 is the stereo version of our 703 Discrete Mixer.
Inspired by Moog’s CP3 mixer, this is a fully discrete
analog mixer and it's not, by any means, your standard
breakfast mixer, although it can behave like one.
This is a wolf in sheep's clothing. Despite its harmless
looks there's a dark snarly soul behind that panel that
wants to take your sounds into a realm of gritty gnarly
growls.
This new version was initially thought of as a percussion
mixer, with mono inputs and panning, to allow placing
percussive voices in the stereo field, while keeping
channel 4 in mono for low end sources like a kick drum
or Bass. In the developement process we slightly
changed this initial idea, adding stereo inputs for the first
3 channels, but still kept the 4th channel in mono.
All four [GAIN] controls go to extreme levels, the first 3
channels also feature [PAN] controls.
Feedback is used to overdrive the whole mix. As the
control is turned clockwise the sound will be clipped
harder until it goes completely off, this happens as
feedback is increased the audio bias reference also
moves up, at extreme levels it offsets the whole signal
upwards until it completely goes above the top rail
clipping the whole signal hence the resulting gate effect.
The [MASTER OUTPUT] sets the overall output gain of the
mixer, the two leds monitor the audio output signal.
The Soft clipping switch engages an anti-click circuit
which adds a low pass before the output, the switch
allows 3 states: Soft low pass / Off / Hard low pass
Features:
.Three channels with stereo inputs, gain and pan knob
.One channel with mono input and gainknob
.Feedback/gate knob
.Master output volume knob
.Soft clipping switch
.Two Led Monitors for Left and Right channels
This module will also be available as a full DIY kit..
Tech Specs:
8HP
4 cm deep
80mA +12V
80mA -12V
page 3ADDAC SYSTEM
ADDAC713 User’s Guide
ADDAC713
STEREO DISCRETE MIXER SIGNAL FLOW DIAGRAM
LEFT OUTPUT
RIGHT OUTPUT
CH1 LEFT INPUT
CH1 RIGHT INPUT
MASTER MIX
PANNING
CONTROL
CH2 LEFT INPUT
CH2 RIGHT INPUT
PANNING
CONTROL
CH3 LEFT INPUT
CH3 RIGHT INPUT
PANNING
CONTROL
GAIN
CONTROL
GAIN
CONTROL
GAIN
CONTROL
FEEDBACK
GAIN
CONTROL
CH4 LEFT INPUT GAIN
CONTROL
LOW PASS
SOFT/OFF/HARD
SOFT CLIP
&
CONTROLS DESCRIPTION
ADDAC713 User’s Guide
page 4ADDAC SYSTEM
Channel 1 Gain control
Channel 1 Pan control
Soft Clipping + Low Pass
Channel 4 Input
Left Output
Right OutputChannel 3 Inputs
(Left normalled to Right)
Channel 2 Inputs
(Left normalled to Right)
Channel 1 Inputs
(Left normalled to Right)
Feedback Gain control
Channel 3 Pan control
Channel 3 Gain control
Channel 2 Gain control
Channel 2 Pan control
Channel 4 Gain control
Master Gain control
For feedback, comments or problems please contact us at:
[email protected]
ADDAC713 USER’S GUIDE
August.2022Revision.01
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