Xaoc Devices Moskwa II User manual
MOSKWA
roto
sequencer ii
Model of 1965
operator’s manual rev. 1965/2.5
2
SALUT
Thank you for buying this Xaoc Devices product.
Moskwa II is an eight-step sequencer
generating two kinds of signals: gate/trigger
-
classic analog sequencers and greatly expands
on their functionality surpassing our original
principles.
-
quencer and a parallel eight-step gate/trigger
sequencer. Together these sequencers provide
the single pair of CV and gate/trigger signals
phrases typical of old-school analog sequenc-
ers. These two signals (CV and gate/trigger)
can be used separately to trigger different
-
eters expecting CV (e.g. in the available bipolar
sequence is set by an internal or external clock
as eight independent gate/trigger pattern
generators (one for each step of the sequence).
-
-
the user advanced control over the optional
All these unique functions allow Moskwa II to
than those produced by traditional sequencers.
INSTALLATION & SETUP
in the Eurorack cabinet. Always turn the pow-
module
explained
clock signal
step on/off
pattern gate
cv level
possible sequence step structure example
1 32
step: on,
pattern: eight steps,
div mode, gate: half
step: offstep: on,
pattern: three steps,
mult mode, gate: half,
glide eefect: slew
limiter active on step
3
board using the supplied ribbon cable. Pay
close attention to power cable pinout and ori-
entation. The red stripe indicates the negative
–12V
on both the bus board and the unit. Moskwa is
internally secured against reversed power con-
may cause serious damage-
the +12V and +5V power lines. Always pay par-
ticularly close attention to the proper orienta-
tion of your ribbon cable on both sides! Do not
attach the power ribbon cable to the Ostankino
expander connector! connecting the power
cable to an incorrect header will de-
stroy your module! The unit should be fas-
we strongly advise the user to read through the
PANEL OVERVIEW
Moskwa’s panel is divided into four function-
al sections with a row of inputs/outputs at
transport button 1surrounded by three
red knobs. The button starts and pauses the se-
rate 2
an external clock is patched into the ext clock
input 3rate knob allows for division or
range 4
cv out
output 5 -
or ±5V range (see: “Global Settings”). The inner
ring around the range knob indicates value in-
for ±5V. reset sets 6
-
each step 7. This section uses the knobs to
set the CV value present at the CV output for
each step and uses the buttons to activate/
deactivate each respective step. An active step
generates signal at the gate out output 8.
Note that the cv out always sends the voltage
is active.
3 5 74 6 8
step: on,
pattern: four steps,
div mode, gate: half
step: on,
pattern: off,
gate: merge,
glide eefect: slew
limiter active on step
step: on,
pattern: off,
gate: half
step: on,
pattern: off,
gate: trig
step: off step: off
4
Moskwa is equipped with three inputs situated
-
transport
input 9pauses the sequence (see: “Global Set-
reset input 10 resets the
direction
input 11 reverses the direction of the sequence.
knobs and three buttons. The rand play knob
12
clockwise increases the probability of replacing
-
-
quence to the current panel settings. The slew
knob 13
to the length of a whole step. The probability
knob 14
setting inversions (activated by steps 2-4 in
the step mode
-
ferent for each step. The custom/shift button
15
shift control giving access to secondary func-
tions. The step/quant button 16 chooses the
step mode
patt/preset
button 17 activates the pattern mode (single
Each button has a LED indicating various
-
MODES: STEP & PATTERN
step mode and pattern
mode. The principal functionality for both
events. Press the corresponding step or patt
front panel
overview
2
6
9
12
15
10
1
5
interface
13
8
14
4
5
16 17
7
311
6
STEP MODE
In the step mode, the step buttons activate and
deactivate the gate/trigger signal for each se-
You deactivate the step to create a pause for
the duration of that particular step. To enter
the step button for one second. More details on
the advanced settings are presented later in this
PATTERN MODE
-
cro-sequence of up to eight gates/triggers
is triggered.
Patterns enable the user to achieve ratchet-
-
nal within the duration of the step to achieve
the default single gate/trigger on the given step
of up to eight gate/triggers. Depending on the
pattern playback mode, each step button
-
up to eight clock cycles (for details see: below).
active pattern on that particular step will not
produce any gate/trigger signal.
QUANTIZATION
Pressing and holding the step/quant button
-
to the step/quant button.
selected via the step buttons. The active scale
choose one of the scales and then send Mosk-
wa’s CV output to a frequency input of a 1V/
corresponding to the given scale. Don’t forget
to tune your oscillator to the root note of your
step or patt.
Factory scales: chromatic, major, minor,
major pentatonic, minor pentatonic, ake-
bono, arabian, phrygian.
USER SCALES
while holding the transport button. The
to create and use your own scales. You can edit
-
-
corresponds to a half step in an octave. A "1"
-
note:
should contain the following intervals: whole
Replace the default set of scales on your Mosk-
-
-
-
CUSTOM SEQUENCE
The shift/custom-
custom
sequence. This function is available only in the
step mode custom sequence
press and hold the shift/custom button while
pushing the step buttons in the desired order.
shift/custom
the default step order will be replaced by the
custom sequence. The custom sequence can
be as long as 256 steps. The custom sequence
playback is indicated by a yellow LED next to
the shift/custom button. The custom se-
quencestep
mode) by pressing the shift/custom button.
You can add steps during playback by pressing
and holding the shift/custom
then choosing steps to be added at the end of
the custom sequence custom se-
quence is inactive adding new steps erases the
previous custom sequence. To erase the cus-
tom sequence without replacing it with a new
transport + shift.
PRESETS
Pressing and holding the patt/preset but-
the patt/preset
slots available. A written slot is indicated by a
-
set is indicated by a red backlight on the cor-
responding step/slot. Patterns saved while two
Moskwa II units were chained together (see: be-
low) are indicated by a yellow backlight. Load-
ing such a chained pattern switches the units to
To write a new preset (saving the current state
pressing and holding the patt/preset button
for one second. Press and hold the shift but-
you want to assign the preset. All settings are
written along with the preset except for the cv
lock function (see: “Global Settings”). Loading
values set by the knobs and the actual values
generated by the loaded preset. To avoid unex-
past the value written with the preset. To re-
preset slot.
TRANSPORT BUTTON:
SECONDARY FUNCTIONS
The transport button can be used to restore
-
vidual sequence step 1-8
step and patt. In step mode
transport + step 1-8 resets all settings for
transport + step
step mode (in-
cluding the deactivation of steps). In pattern
mode, transport + step 1-8 clears the pat-
transport
+ patt pattern
mode. In preset mode, transport + step
1-8 clears the chosen preset slot.
step 3 active in the global settings
transport button
and turning the probability knob all the way
clockwise and then all the way counterclock-
wise clears the probability sequence (see:
below). In step mode, press transport +
shift/custom to erase the custom sequence.
7
8
STEP SETTINGS
while pressing each additional step to be edit-
ed. The chosen steps light up green. The step
1-8 buttons are used to select various functions
-
ed its button lights up green.
step 1 • slew on button activates/deactivates
the slew knob.
step 2 • slew prob button activates/deac-
tivates the probability of the inversion of the
-
globally with the probability knob.
step 3 • step prob button activates the prob-
ability function for the gate/trigger of the ed-
ited step.
step 4 • patt prob button activates the prob-
ability function for turning the pattern on and
off for the given step.
step 5 • skip button activates the skip func-
a shorter sequence.
step 6-8 buttons select the type of signal pres-
ent at the gate out.
the output signal is a gate. Its length is a direct
copy of the width of the external clock pulse
step 6 • trig
gate out
changes to trigger.
step 7 • gate half button activates a gate
with a duration of half the step length (or half
step 8 • gate merge button button activates
a legato style gate lasting the entire length of
PATTERN EDITING
pattern mode by pressing the patt button
then select a step by pressing one of the eight
step 1-8
change is audible yet. Hold the step 1-8 but-
ton for one second to enter edit mode. To edit
others to be edited. The selected steps light up
green.
The default pattern has eight steps with only
hold the shift
last pattern step using the step buttons. The
length of a given pattern is indicated by a red
backlight.
Now you are ready to activate pattern steps
by pressing the step 1-8
active pattern steps light up yellow. To exit the
patt or step.
In the pattern mode, you can choose the pat-
press and hold shift and press a step button
of your choosing. There are two options: a red
backlight indicates the default div pattern
mode in which the entire pattern lasts for the
-
steps). A yellow step backlight indicates mult
pattern mode in which each pattern step lasts
periods as there are steps in the pattern for the
given step. This setting is unique for each step.
In pattern mode, the steps that have been
mult pattern mode
red for div pattern mode). In step mode the
steps with active patterns are indicated by a
Default pattern settings are: div pattern
mode,
-
difference being the shorter gate duration for
the given step).
GLOBAL SETTINGS
Global settings access additional options for
detailed control over the sequencer behavior.
transport button
for one second. Active functions are indicated
by a yellow backlight on the corresponding
step 1-8 buttons.
step 1 • transport button changes the be-
havior of the transport
-
pects triggers which toggle the sequence be-
-
ior of the transport button.
step 2 • slew mode button changes the be-
step 3 • prob mode button changes the func-
tion of the probability
knob no longer increases the probability of ran-
inversions of settings activated with step 2–4
buttons in the step mode (see: “Step Settings”).
The sequence consists of 16 steps (it changes
proba-
bility
-
each step’s result can be quite different.
probability
prob-
ability
step
mode
probability knob settings between the
step mode, push
and hold the transport button and then turn
the probability knob all the way clockwise
and then all the way counterclockwise.
step 4 • brownian button changes the func-
tionality of the random play
the random play-
in the global settings by the step 4 button
the random play
step 5 • bipolar cv -
±5V.
9
10
step 6 • cv hold button activates the CV hold
and the VCA envelope is longer than the duration
-
changing when the envelope is still in the decay/
release stage.
step 7 • just inton
-
menu
navigation
press
together
with step
press + hold
for 1 sec.
press
together
with pattpress hold for 1 sec. press hold for 1 sec.
step
mode
quant
menu
global
menu
pattern
mode
preset
menu
press
step 1-8 to
activate step
press
transport +
step 1-8 to
clear indiv.
step settings
press
step 1-8
to select scale
1:
2:
3:
4: pentatonic
5: pentatonic
6: akebono
7: arabian
8: phrygian
clears
all steps'
settings
press
step 1-8
to toggle
global
settings
1: transport
2:
3:
4: brownian
5: bipolar CV
6: CV hold
7:
8: CV lock
clears
all
patterns
press
step 1-8
to activate
pattern for
a given step
press
step 1-8 to
load preset
press
shift +
step 1-8
to save preset
press trans-
port + step
1-8 to clear
preset
hold for 1 sec.
step 1-8
to toggle
1: slew on
2: slew prob
3: step prob
4: patt prob
5: skip
6: trig
7: gate half
8:
hold one
step 1-8
then press
another to
steps at once
hold
step 1-8
to set pattern
steps
press
shift +
step 1-8
to set pattern
length
hold one
step 1-8
then press
another
to select
at once
menu navigation
& button combinations
11
chaining
two units
step 8 • cv lock button activates the CV lock
function which deactivates CV knobs. There-
cv out.
all the other functions without the risk of acci-
dental pitch change. This is also very useful in
sequence before initiating the change. To avoid
the presets.
EXPANDABILITY: CHAINING TWO UNITS
Two Moskwa II units can be chained to prepare
-
-
ble the wrong way. Chaining and unchaining is
trans-
port button on the unit you want to be the
transport
chain two Moskwa’s one can also load a chain
preset (indicated by yellow backlight).
-
lar preset (indicated by red backlight).
Two chained Moskwa II units generate a
-
cv
out
cv out and gate out
and range settings. The secondary Moskwa
length depends on the reset
reset set to „off”
change to the reset setting on any Moskwa
reset
reset
total step count is 12. Chaining two Moskwa II
cus-
tom sequences. custom sequences can
random play and probability
goes for the ext clock input. The transport
and off. The transport button on the second-
ary unit toggles between a 16-step sequence
the secondary unit.
EXPANDABILITY: OSTANKINO EXPANDER
Moskwa II’s connectivity. It adds CV inputs for
random slew probability range
rate
transpose input.
and the last sequence step with CV. The expand-
er features a step repeat button as well as a
gate input for that function.
There are nine additional outputs: clock out
and individual gate/bit outputs for each se-
quence step. Please note that neither Ostanki-
with the Moskwa II.
ACCESSORY
Our Coal Mine black panels are available for all
your favourite retailer. •
FEATURES
pattern for each
step
sequence up to
256 steps
circuits
Eight preset slots
External clock
and divider
operation
Two units can be
daisy-chained
Expandable with
Ostankino II
SPECIFICATION
(including the
ribbon cable)
Current draw:
Reverse power
protection
EASTERN BLOC TECHNOLOGIES MADE IN THE EUROPEAN UNION
ALL RIGHTS RESERVED. CONTENT COPYRIGHT ©2023 XAOC DEVICES. COPYING, DISTRIBUTION, OR COM-
MERCIAL USE IN ANY WAY IS STRICTLY PROHIBITED AND REQUIRES WRITTEN PERMISSION FROM XAOC
DEVICES. SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. EDITING BY BRYAN NOLL.
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, THERE IS
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, DISTRIBUTION TERMS, AND JOB POSITIONS, FEEL FREE TO CON-
FORMATION ABOUT THE CURRENT PRODUCT LINE, USER MANUALS, FIRMWARE UPDATES, TUTORIALS,
AND MERCHANDISE.
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