Xaoc Devices SOPOT 1980 TRIPLE SIGNAL SUMMATOR User manual
SOPOT
triple signal
summator
Model of 1980
operator’s manual rev. 1980/1.0
SaluT
Thank you for purchasing this Xaoc Devices
product. Sopot is a triple summing mixer
featuring three signal-adding sections, with
the middle one optionally fed to the top and
bottom ones. Sopot is a compact utility mod-
ule useful in summing multiple stereo and
mono sound sources (up to four signals for
each section).
To better understand the device, we strongly
advise the user to read through the entire
manual before use.
inSTallaTiOn
The module requires 6hp worth of free space
in the Eurorack cabinet.
Always turn the power off before plugging
the module to the bus board using the sup-
plied 16-pin to 10-pin ribbon cable, paying
close attention to power cable pinout and
orientation. The red stripe indicates the
negative rail and should match the –12v
mark on the bus board and the unit. Sopot
is internally secured against reversed pow-
plug may cause serious damage to other
components of your system because it will
short circuit the +12V and +5V power lines.
Always pay particularly close attention to
the proper orientation of your ribbon cable
on both sides!
The module should be fastened by mount-
ing the supplied screws before powering up.
However, before doing so, you may consider
selecting the desired attenuation in each of
the three sections by appropriately setting
the three jumpers at the back. A detailed ex-
planation of their function is provided below.
mOdule OVerVieW
Sopot features three independent summing
sections A, B, C. Each section has four
inputs 1and one output 2. The middle
section, marked mix m A, may be optionally
mixed into the upper one, mix l B, and the
lower one, mix r C. Two 3-position switches
3allow for including this additional submix
in the upper and lower sections, or both (or
neither). The switches offer three options:
50% attenuation, off, and 100% (no atten-
uation).
Each summing section features a soft clip-
ping circuit to prevent unpleasant distortion.
In addition, there is a signal level indicator
4in each of the three summing sections. It
shows the volume of the corresponding out-
put using light intensity and color, gradually
changing from green to yellow and red when
the sum exceeds 16Vpp.
OPeraTiOn
The main application of Sopot is combining
up to four stereo sources (mix l for the left
channel, mix r for the right channel) with
up to four mono sources (mix m fed to the
upper and lower sections). Depending on
the position of the two switches, the middle
section’s submix may appear in the stereo
panorama as a centered source (100/100)
or an off-centered one (100/50 or 50/100).
2
module
explained
3
front panel
overview
1
2
3
4
A
B
C
Sopot can also be used as three independent
signal adders (both switches in the center
position for off) or for processing various
control voltages thanks to its DC-coupled
signal path.
Please keep in mind that the signal ampli-
tude in Eurorack is limited by the dynamic
range of op-amps to +/-10V, and it is phys-
ically impossible to sum four hot signals
without clipping. Therefore, Sopot can han-
dle sounds that mostly do not overlap (e.g.,
different voices of a rhythmic section). Still,
attenuation may be necessary depending on
the application (e.g., mixing continuous sig-
nals) and operating scenarios.
Attenuation may be set using three jump-
ers at the back of the module, one for each
section. No jumper means unity gain (1:1),
while a jumper in place sets the attenuation
at -12dB (1:4). Please note that the jumpers
adjust the attenuation for the outputs of
each section independently.
Even with attenuation set to 1:4, it is still
possible to occasionally overdrive a sum-
ming mixer when the incoming signals are
-
tures a special soft clipping circuit that offers
smooth saturation of the peaks. It is the same
solution we used in our Tallin dual VCA.
acceSSOrY
Our Coal Mine black panels are available for
all of Xaoc Devices modules. Sold separately.
main
feaTureS
Three inde-
pendent 4:1
summators
Middle section
optionally fed to
the upper and
lower ones
Switch-selectable
submix gain
High-quality, low
noise design
Color signal level
indication
Technical
deTailS
Eurorack synth
compatible
6hp, skiff
friendly
Current draw:
+30mA/-20mA
Reverse power
protection
WarranTY TermS
XAOC DEVICES WARRANTS THIS PRODUCT TO BE FREE OF DEFECTS IN MATERIALS OR WORKMANSHIP
AND TO CONFORM WITH THE SPECIFICATIONS AT THE TIME OF SHIPMENT FOR ONE YEAR FROM THE
DATE OF PURCHASE. DURING THAT PERIOD, ANY MALFUNCTIONING OR DAMAGED UNITS WILL BE
REPAIRED, SERVICED, AND CALIBRATED ON A RETURN-TO-FACTORY BASIS. THIS WARRANTY DOES NOT
COVER ANY PROBLEMS RESULTING FROM DAMAGES DURING SHIPPING, INCORRECT INSTALLATION OR
POWER SUPPLY, IMPROPER WORKING ENVIRONMENT, ABUSIVE TREATMENT, OR ANY OTHER OBVIOUS
USER-INFLICTED FAULT.
leGacY SuPPOrT
IF SOMETHING GOES WRONG WITH A XAOC PRODUCT AFTER THE WARRANTY PERIOD IS OVER, NO
NEED TO WORRY, AS WE’RE STILL HAPPY TO HELP! THIS APPLIES TO ANY DEVICE, WHEREVER, AND
WHENEVER ORIGINALLY ACQUIRED. HOWEVER, IN SPECIFIC CASES, WE RESERVE THE RIGHT TO CHARGE
FOR LABOR, PARTS, AND TRANSIT EXPENSES WHERE APPLICABLE.
reTurn POlicY
THE DEVICE INTENDED FOR REPAIR OR REPLACEMENT UNDER WARRANTY NEEDS TO BE SHIPPED IN
THE ORIGINAL PACKAGING ONLY AND MUST INCLUDE A COMPLETED RMA FORM. XAOC DEVICES CAN
NOT TAKE ANY RESPONSIBILITY FOR DAMAGES CAUSED DURING TRANSPORT. SO BEFORE SENDING
UNSOLICITED PARCEL WILL BE REJECTED AND RETURNED!
General inQuirieS
FOR USER FEEDBACK SUGGESTIONS AND DISTRIBUTION TERMS, FEEL FREE TO CONTACT XAOC DEVICES AT
THE CURRENT PRODUCT LINE, USER MANUALS, FIRMWARE UPDATES, TUTORIALS, AND MERCHANDISE.
EASTERN BLOC TECHNOLOGIES MADE IN THE EUROPEAN UNION
ALL RIGHTS RESERVED. CONTENT COPYRIGHT © 2022 XAOC DEVICES. COPYING, DISTRIBUTION, OR
ANY COMMERCIAL USE IS STRICTLY PROHIBITED AND REQUIRES THE WRITTEN PERMISSION BY XAOC
DEVICES. SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. EDITING BY BRYAN NOLL.
Other Xaoc Devices Mixer manuals
