IK Multimedia UNO Synth PRO X User manual

USER MANUAL
UNO Synth PRO X
Paraphonic Dual Filter Analog Synthesizer

UNO Synth PRO X
Contents
2
Table of Contents
Contents 2
1 – Introduction 4
1.1 – What’s inside the box 4
1.2 – Register your UNO Synth PRO X 4
1.3 – Overview 5
1.4 – Precautions 6
2 – Installation and setup 7
2.1 – Connections 7
2.2 – Turning the unit ON/OFF and Calibration process 8
3 – Front Panel Interface 9
3.1 – Home Display 10
3.2 – Sound Editing 11
3.3 – Oscillators 12
3.4 – Filters 14
3.5 – LFOs 16
3.6 – Envelopes 17
3.7 – Modulation Matrix 19
3.8 – Effects 21
3.8.1 – Modulations (M) 22
3.8.2 – Delays 23
3.8.3 – Reverbs 24
3.9 – Master 25
3.10 – Other sound editing shortcuts 26
3.11 – Bassline Mode 27
4 – Global Controls 28
4.1 Preset 28
4.1.1 – Edit Preset menu 28
4.1.2 – Store a preset 28
4.1.3 – Load a preset 29
4.1.4 – Rename a preset 29
4.1.5 – Initialize a preset 29
4.1.6 – Recall a preset 29

UNO Synth PRO X
Contents
3
4.2 – Setup 30
4.2.1 – Master Tuning 30
4.2.2 – MIDI 30
4.2.3 – SYNC 31
4.2.4 – KEYBOARD 31
4.2.5 – PITCH WHEEL 32
4.2.6 – KNOB 32
4.2.7 – AUDIO 32
4.2.8 – METRONOME 32
4.2.9 – ILLUMINATION 32
4.2.10 – CALIBRATE 33
4.2.11 – OS UPDATE 33
4.3 – Arpeggiator 34
4.4 – SEQUENCER 36
4.4.1 – Editing button and play tools 37
5 – FAQ and troubleshooting 39
6 – Technical Specifications 40
7 – Support 41

UNO Synth PRO X
1 – Introduction
4
1 – Introduction
Thank you for purchasing UNO Synth PRO X.
1.1 – What’s inside the box
• UNO Synth PRO X
• USB-C cable
• Power Supply
• Registration Card
• Quick start guide with QR Code to this User Manual
1.2 – Register your UNO Synth PRO X
By registering, you can access technical support, activate your warranty and receive free JamPoints™, which
will be added to your account. JamPoints™ allow you to obtain discounts on future IK purchases! Registering
also keeps you informed of all the latest software updates and IK products.
Register at: www.ikmultimedia.com/registration

UNO Synth PRO X
1 – Introduction
5
1.3 – Overview
UNO Synth PRO X is a powerful and portable paraphonic analog synthesizer with digital effects and built-in
sequencer and arpeggiator.
The synth architecture provided by Sound Machines based on the IK Multimedia design presents an analog
audio path and a digitally controlled engine with these features:
Powerful engine
• 3 wave-morphing oscillators
• Sync and pulse-width modulation
• FM and ring modulation
• 3-voice paraphony
• OTA multimode filter with HP and LP mode
• SSI chip-based LP filter with self-oscillation and 2/4 Pole slope
• Serial and parallel configurations with phase inverting
• 3 full ADSR envelopes with looping option + 2 LFOs
• 16-slot modulation matrix
• Analog drive circuit
• 3 FX slots – reverb, delay, modulation
• 256 user-editable presets
• 10-mode onboard arpeggiator
• 64-step sequencer with parameters recording
• CV/Gate automation
Advanced connectivity
• Balanced Stereo out for noiseless operation
• 3.5 mm Headphone out for maximum portability
• USB and MIDI In/Out
• 2 Programmable CV/Gate In/Out
• Audio input for filters and FX, daisy-chain

UNO Synth PRO X
1 – Introduction
6
1.4 – Precautions
Locations
Using the unit in the following locations can result in a malfunction:
• In direct sunlight
• Location of extreme temperature or humidity
• Excessively dusty or dirty locations
• Locations of excessive vibration
• Close to magnetic fields
Power Supply
Please use only the power supply provided with the unit and connect the cable to the correct port on the device.
Please note: the USB-C port can power the unit, however is meant to be used as secondary source. Use the
provided power supply for optimal use.
Interference with other electrical devices
Radios and televisions placed nearby may experience reception interference. Operate the unit at a suitable
distance from radios and televisions.
Handling
To avoid breakage, do not apply excessive force to the knobs, buttons or the OLED display.
Care
If the exterior becomes dirty, wipe it with a clean and dry cloth. Do not use liquid cleaners such as benzene or
thinner, or cleaning compounds of flammable polishes.
Keep this manual
After reading, please keep this manual for later reference.
Keep foreign matter out of your unit
Never set any container with liquid in it near this unit. If liquid gets into the unit, it could cause a breakdown, fire
or electrical shock. Be careful not to let metal objects get into the equipment. If something does slip into the
unit, unplug the power and/or the USB cable, then contact your nearest IK Multimedia dealer or the store where
the equipment was purchased.
Specification subject to change
The information contained in this manual is believed to be correct at the time of printing. However, IK Multimedia
reserves the right to change or modify any of the specifications without notice or obligation to update existing
units.

UNO Synth PRO X
2 – Installation and setup
7
2 – Installation and setup
2.1 – Connections
Please note: To prevent malfunction and equipment failure, always turn down the volume and turn off all the
equipment before making any connections.
UNO Synth PRO X can be powered either from USB or POWER jack. When connected via USB the host (Mac,
Windows) must provide at least 1.5 A in order for the Uno Synth PRO X to work properly. In case the host is not
capable of supplying the required power an external power supply (included in the box) must be connected to
the POWER jack.
POWER
Connect the provided power supply to power the unit.
NB: Only use the original power supply included in the box.
USB-C Port
USB port should be used to connect UNO Synth PRO X with a PC/Mac host for both data transmission. The
USB-C port is capable of powering the unit, but is not meant to be the sole source of power. Use the power
supply provided for normal use.
CV/GATE
These are typically used to send or receive electrical signals with external devices such as a Eurorack modular
system. These connections can be used as CV, Gate or Sync signals.
The CV output sends and receives a control voltage you can use to control external oscillators, filters or other
voltage-controlled devices. A gate can send or receive a simple on-off message from external devices similar to
a note on-off message. Gate signals are typically used for triggering envelopes or advancing sequencer steps.
Sync sends or receives time-based signals from external devices.
Audio IN
Connect an external mono audio source. The incoming audio can be processed through the internal sound
engine or simply passed through as a daisy chain with no processing.

UNO Synth PRO X
2 – Installation and setup
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Phones
Headphones can be connected to the UNO Synth PRO X through the 3.5 mm stereo jack on the back panel.
Audio OUT
Connect the UNO Synth PRO X output to an external amp, mixer or audio interface. Note that the output is
stereo because of the integrated digital effects.
MIDI IN/OUT ports
Connect the UNO Synth PRO X to a MIDI interface, controller, synthesizer or drum machine with standard 5-pin
MIDI DIN connectors.
2.2 – Turning the unit ON/OFF and Calibration process
UNO Synth PRO X powers on as soon as the power supply is connected to the unit. The unit can then be
powered on and off by pressing and holding the HOLD Button.
Once powered ON it automatically starts the first tuning and capacitance sensing calibration. During the
calibration the display will first show a static “UNO,” the FW version and then a blinking “CALIBRATION.”
The unit will then be ready for use and the last used preset will be loaded and indicated on the display.
Due to the fully analog signal path various noises and calibration sounds might be audible during the startup of
the unit.
We recommend turning your system volume down while starting up.

UNO Synth PRO X
3 – Front Panel Interface
9
3 – Front Panel Interface
The interface is designed with groups of controls divided by their function.
Sound Editing section
The group of buttons, knobs and light indicators that work together to navigate the sound design parameters of
the synth engine. These controls are located on the upper left.
Global controls
This is the group of buttons on the right along with the display and push encoder for dedicated setup and to
manage the synth to fit your needs.
Sequencer and Arpeggiator
The group of buttons on the bottom of the synth, made of a small 1-octave keyboard and utility buttons. This
section will help you create your riffs and synth lines with ease and inspire you during your sound design
journey.
The SHIFT button located on the far right of the interface can be used in combination with other knobs/buttons
in order to access alternate functions.
For the sake of clarity the names of the functions accessed with the shift key are written in red inside this
document.

UNO Synth PRO X
3 – Front Panel Interface
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3.1 – Home Display
The display of the USPX on the home page gives information about the Preset, BPM/Sync and the Voice mode.
On the top left, when sync is set to INTERNAL, the BPM is shown, otherwise the EXT will let you know that the
machine will wait for an external tempo.
On the top right, the Voice mode of the preset is shown as LEG for legato, MON for mono and PAR for
paraphonic.

UNO Synth PRO X
3 – Front Panel Interface
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3.2 – Sound Editing
The sound editing section is comprised of 15 buttons, 22 knobs and 6 lighted indicators.
Each time you need to go deeper into the editing of a section, PUSH the DATA encoder. You will jump directly
inside the EDIT PRESET menu, being able to move inside it with using PUSH, DATA and BACK.
The EDIT PRESET menu is where all the parts of the synth engine, even the ones not shown on the interface,
are available for editing.
To access this menu press PRESET while the “home” page is shown. To exit, use BACK the number of times
necessary to exit the nested menu.
NOTE: We can call HOME page the display view where the name of the preset, the slot number, the tempo and
the voice mode are shown.

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3 – Front Panel Interface
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3.3 – Oscillators
OSC
Press the button to toggle between the 3 OSCs. Hold the button to edit
all three OSCs at the same time.
WAVE
The wave is selected by a continuous wave shaper going from Triangle
to Saw to Pulse with PWM from 50% to 98%.
SYNC
When OSC 2 or 3 are selected, the phase is forced to be synchronized
to the phase of OSC1. This adds harmonic overtones to the frequency of
oscillator 2 and/or 3, creating complex waveforms.
TUNE
Tune has a range of +/- 2 octaves. The first +/-100 cents (1 semitone) are
adjusted in cents and the remaining course in semitones.
Tip: After modifying the tuning with the knobs and it changes to
semitone adjustment, you can still use the data knob to adjust the tuning
in cents.
FM
Adjusts the amount of Frequency Modulation from OSC 1 to OSC 2 and/or 3.
RING 2
Ring Modulation multiplies the signals from OSC1 and
2 generating different harmonics not present in either of
the original signals.
Adjusting the pitch of Oscillator 2 creates atonal and
metallic sounds.
When ON, OSC 1 ring modulates OSC 2. RING is an
ON/OFF control.
LEVEL
Adjusts the pre-filter volume of Oscillator 1 from 0 to
127.
NOISE
Adjusts the pre-filter volume of the Noise Generator
from 0 to 127.

UNO Synth PRO X
3 – Front Panel Interface
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The External Audio-In routing is selectable in the MIXER section inside the EDIT PRESET menu,
between PRE, where the audio enters pre-filters and became part of the audio sources, and POST, which acts
as an audio daisy chain.

UNO Synth PRO X
3 – Front Panel Interface
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3.4 – Filters
The UNO Synth PRO X is equipped with 2 filters for its voice that
can be routed either in series or parallel, and are shown in the
following:
Filter 1 is a 2-pole OTA-based filter with HP and LP modes.
Filter 2 is a selectable 2 or 4-Pole LP based on the SSI2164 chip.
CUTOFF 1 & 2
Adjusts the cutoff frequency of the filter between 20 Hz and 21
kHz.
RES 1 & 2 (Resonance)
Adjusts the resonance of the filter from 0 to 127. Filter 2 will begin
to self-oscillate at around value 210.
ENV AMT 1 & 2 (Envelope Amount to filter)
This is a fixed modulation route that determines how much the
Filter Envelope modulates the cutoff frequencies with a range of
-63 to 64.
TRACKING
This determines to what extent the cutoff frequency will track the keyboard. The higher the value is set, the more
the filter will open over the upper range of the keyboard and close in the lower ranges of the keyboard. The
control range is +/- 200%.
LINK (link Cutoff only)
When ON, operating the FILTER 1 CUTOFF will uniformly change both of their cutoff frequencies. The relative
offset between the cutoff frequency settings of the Filters is preserved as the linked value is increased or
decreased. This relative offset can be modified moving the FILTER 2 CUTOFF.
+RES (link Cutoff + Resonance)
When ON, operating the FILTER 1 RESONANCE will uniformly change both of their Resonance frequencies. The
relative offset between the cutoff frequency settings of the filters is preserved as the linked value is increased or
decreased. This relative offset can be modified moving the FILTER 2 RESONANCE.
LPF / HPF Toggle
Toggles between the Filter 1 modes.

UNO Synth PRO X
3 – Front Panel Interface
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2P / 4P Toggle
Toggles between the Filter 2 slopes.
PAR
Toggles between the series and parallel routing of the two filters.
PHASE
Toggles between the polarity of Filter 1.

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3 – Front Panel Interface
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3.5 – LFOs
LFO 1 / LFO 2 Toggle
Selects which of the two LFOs is currently being edited.
WAVE
Hard switch between Sine, Triangle, Falling Sawtooth, Rising Sawtooth, Square, Random, S&H, Noise.
RATE
Selects the speed of the LFO 1 from 0.01 Hz to 100 Hz. When the sync is enabled, the Rate is synchronized to
the tempo and the rate is displayed in BPM.
FADE IN
This parameter controls how much time it takes for the LFO amplitude to rise from zero to maximum. The value
is expressed in seconds from 0.0 to 10.0 (one decimal place).
SYNC
An ON/OFF control. When ON, the LFO rate synchronizes to the tempo with the following musical note
subdivisions: 1/1 1/2, 1/4, 1/4d, 1/4t, 1/8, 1/8d, 1/8t, 1/16, 1/16d, 1/16t, 1/32, 1/32d, 1/32t, 1/64, 1/64d, 1/64t,
1/128.
CURVE
This parameter selects the type of curve to apply at the Fade In time between Linear, Logarithmic and
Exponential.
RETRIG
An ON/OFF control, which resets the phase of the LFO each time a key is pressed.

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3 – Front Panel Interface
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3.6 – Envelopes
There are three ADSR envelopes: the Filter Envelope, the Amp Envelope and the Envelope 3.
The Filter Envelope modulates the cutoff frequency of the two filters with the modulation amount set by the
Envelope Amount controls for each filter.
The Amp Envelope modulates the volume of the VCA by 100%.
The Envelope 3 hasn’t got a fixed routing, instead it can be set inside the modulation matrix.
All the envelopes can be used as sources to modulate other parts of the synth in the Modulation Matrix.
FILTER / AMP / ENV 3
This control toggle between the AMP and the FILTER envelopes. To select the ENV 3, use the SHIFT.
ATTACK
Sets the amount of time from 0 to its maximum. The range is from 0 to 30 sec.
DECAY
Sets the amount of time needed to go from peak to the specified sustain level.
The range is 0.1 ms to 30 sec.
SUSTAIN
Sets the level of the held note. Unlike A, D and R, Sustain is a level and not a time control. The range is from 0
to 127.
RELEASE
Sets the amount of time for the sustain level to 0. The range is 0.1 ms to 30 sec.
LOOP
Both envelopes have the ability to loop between Attack and Decay. When the control is set to ON, it goes back
to the attack stage after the end of the decay stage and repeats the envelope cycle until stopped.

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3 – Front Panel Interface
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RETRIG
Retrigger of both the envelopes is automatically switched when using the VOICE button to switch between
MONO, LEGATO and PARAPHONIC mode.
However, you can individually select the ON/OFF status of the retrigger based on the necessity.
ACC DECAY
Refer to “Bassline mode” section.
ACCENT
Refer to “Bassline mode” section.

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3 – Front Panel Interface
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3.7 – Modulation Matrix
The Modulation Matrix is the way to create modulation connections between parts of the
engine, which are usually not connected (ex: the amp envelope modulating the OSC2
wave).
There are 16 modulation slots available, each with a source, destination and amount.
Modulation amounts can have unipolar or bipolar values depending on the destination. For
bipolar destinations, negative values create inverted modulations.
SLOT (press both SOURCE and DEST keys)
Selects the modulation slot number between 1 and 16. Pressing the button will show on
the 16 steps (like the 16 slots), the available slots (not lit steps), the used slot (the red lit
steps) and the selected slot (the flashing white step).
Pressing a step will select the relative modulation slot. The display will show not only the slot number, but also
the source and the destination.
SOURCE
Selects from the available modulation sources.
DEST
Selects from the available modulation destinations.
AMOUNT
Adjusts the bipolar amount of modulation, depending on the destination and source parameters.
Note: Holding the SOURCE or the DEST buttons will allow to select either by turning the knobs on the front
panel.
Regarding the CV (control voltage)
CV and Gate connections are defined in the Modulation Matrix by selecting them as destinations for the CV/
Gate outputs) or sources for the CV/Gate inputs.
CV input is bipolar (where value 64 is +2.5 V).
CV output is unipolar (positive range only from 0 to +5 V).

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