KORG ST1K Synthesizer Tuner Owner’s Manual
- September 24, 2024
- KORG
Table of Contents
ST1K Synthesizer Tuner
Specifications
Brand: Korg
Model: ST1K Synthesizer Tuner
Main Features: Synthesizer Tuner with LED
display
Product Usage Instructions
Preparation
Installing the Batteries
- Turn off the power.
- Open the battery cover located on the back of the tuner.
- Insert batteries, ensuring correct polarity.
- Close the battery cover securely.
Making Connections
1. Connect the musical instrument to be tuned to the INPUT
jack.
2. Connect the OUTPUT jack to an amplifier or similar
equipment.
3. Ensure all devices are powered off before making connections
to prevent damage.
Note: Do not connect anything to the INPUT and
OUTPUT jacks when using the internal mic for tuning.
Tuning
How to Tune
-
Press the power button to turn on/off.
-
The calibration setting will briefly display on the note name
display with a blinking light. -
The blue LED in the tuning LED meter will light up.
Adjusting Calibration
To adjust the calibration, press the CALIB button and follow
on-screen instructions.
Setting Display Mode
You can change the display mode by pressing the DISPLAY button.
Cycle through available modes as needed.
Frequently Asked Questions (FAQ)
Q: What should I do when the blue LED in the LED meter
blinks?
A: When the blue LED blinks, it indicates that the batteries are
almost depleted. Replace them promptly to ensure accurate
tuning.
Q: Can I use stereo (TRS) cables with the INPUT and OUTPUT
jacks?
A: No, the INPUT and OUTPUT jacks are mono. Stereo cables will
not work with this tuner.
Owner’s Manual
E 1
ST1K – Table of contents
Table of contents
Introduction …………………………………………………………………………………………………… 3 Main features
………………………………………………………………………………………….. 3 Parts of the ST1K
……………………………………………………………………………………. 3
Preparation …………………………………………………………………………………………………….4 Installing the batteries
……………………………………………………………………………….. 4 Making connections
……………………………………………………………………………………. 4
Tuning …………………………………………………………………………………………………………….5 How to tune
………………………………………………………………………………………………… 5 Adjusting the calibration
……………………………………………………………………………. 5 Setting the display
mode……………………………………………………………………………. 6
Specifications ………………………………………………………………………………………………… 7
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ST1K – Introduction
Introduction
Thank you for purchasing the Korg ST1K Synthesizer Tuner.
Main features
· A standard adapter plug for a 3.5 mm mini jack (like the patch cables that
are widely used with modular synthesizers) to 6.3 mm (1/4″) jack is included
with this unit.
· We have also improved this unit by adjusting the input circuit to
accommodate modular synthesizers, which use higher voltages for a stable
display that’s easier to tune.
· This unit features a large, easy-to-read 3D visual meter, putting this
tuner’s display on footing with the LEDs used on modular and analog
synthesizers.
Parts of the ST1K
4
1
2
3
1 OUTPUT jack 2 Note name display 3 Tuning LED meter 4 Internal mic 5 INPUT
jack 6 CALIB button 7 DISPLAY button 8 Power button 9 Battery cover
5
6 7 8 9
3
ST1K – Preparation
Preparation
| Installing the batteries
Make sure to turn the power off before you install or replace the batteries.
Batteries are not included, so you must purchase them separately.
When the batteries are almost depleted, the blue LED in the LED meter blinks.
When this happens, install new batteries as soon as possible to ensure
accurate tuning.
1 Open the battery cover, located on the back of the tuner. 2 Insert the
batteries, making sure to observe the correct polarity. 3 Return the battery
cover to its original position.
| Making connections
Connect the musical instrument that you want to tune to the INPUT jack, and
connect the OUTPUT jack to an amplifier or similar equipment.
Turn off the power of all devices before you make any connections to avoid
damaging your equipment. The INPUT and OUTPUT jacks are mono. Stereo (TRS)
cables will not work. Note: When using the internal mic for tuning, make sure
nothing is connected to the INPUT and OUTPUT jacks. The internal mic cannot be
used when a device is connected.
Connecting to a synthesizer
When using this tuner with a modular synthesizer, connect the oscillator
output to the ST1K to tune the oscillator pitch. Connect the OUTPUT jack of
the ST1K to the filter or other component of the modular synthesizer.
4
ST1K – Tuning
Tuning
| How to tune
1 Press the power button.
The power will turn on/off each time you press this button. The calibration
setting will appear in the note name display for a few seconds (light
blinking). In addition, the blue LED in the tuning LED meter will light up.
If the power is left on for approximately 3 minutes without any user input, it
will turn off automatically.
2 If desired, adjust the calibration ( Adjusting the calibration) and/or
select the display mode
( Setting the display mode).
3 Play a single note on your instrument and tune it so that the desired note
appears in the note
name display. The note name closest to the entered note appears in the note
name display.
4 Tune your instrument using the tuning LED meter.
The method for indicating whether your instrument is in tune, sharp or flat
depends on which display mode you choose.
Even if the pitch is within the range of detection, it may not be possible to
detect the pitch of an instrumental sound that contains large numbers of
overtones or a sound that has a rapid decay.
| Adjusting the calibration
The ST1K comes from the factory with the calibration set to A=440 Hz. If an
adjustment is necessary, you can do so within a range of 436445 Hz.
1 Press the CALIB button.
The current setting will blink for several seconds in the note display (Light
Blink).
2 While the current calibration setting is shown in the note name display,
press the CALIB button
again to adjust the setting. Each time you press the CALIB button you will
cycle through the following settings.
5
ST1K – Tuning
3 After you have selected your desired calibration setting, wait approximately
two seconds without
pressing any buttons. The new setting will blink three times in the note name
display indicating the calibration has been set. The ST1K will automatically
return to tuner mode.
The calibration setting will be remembered even if the power is turned off.
However, this setting will be reset to the factory default if the batteries
are removed.
| Setting the display mode
The ST1K allows you to choose one of three display mode settings. The factory
setting is Regular mode.
1 Press the DISPLAY button.
The current setting will blink for several seconds in the note display (Light
Blink).
2 When the setting is shown in the note name display, press the Display button
again to set the
display mode. Each time you press the DISPLAY button you will cycle through
the following settings. 1: Regular Tune your instrument until the blue LED in
the LED meter lights up brightly. If the pitch is too high, the white LEDs on
the right side light up; and if the pitch is too low, the white LEDs on the
left side light up.
2: Strobe Tune your instrument until the LEDs stop running. Since the strobe
meter has higher precision, it allows you to tune with greater accuracy. The
illumination will flow from left to right if the pitch is high, or from right
to left if the pitch is low.
3: Half-strobe Tune your instrument until the LED meter lights stop pulsating
outwards and only the blue LED lights up. If the pitch is too high, the white
LEDs on the right side strobe on; and if the pitch is too low, the white LEDs
on the left side strobe on. When the pitch is correct, only the blue LED
lights up.
3 After you’ve chosen the display mode you would like to use, wait
approximately two seconds
without pressing any buttons. The note name display will blink two times, the
display mode will be set. The ST1K will automatically return to tuner mode.
The display mode setting will be remembered even if the power is turned off.
However, this setting will be reset to the factory default if the batteries
are removed.
6
ST1K – Specifications
Specifications
Scale: 12-note equal temperament Range (sine wave): A0 (27.50 Hz)C8 (4186 Hz) Reference pitch: 436445 Hz (1 Hz steps) Precision: +/-0.1 cent Input impedance: 45 k Connection jacks: INPUT jack (6.3 mm monaural phone jack), OUTPUT jack (6.3 mm monaural phone jack) Power supply: Two AAA manganese dry cell, alkaline dry cell or NiMH rechargeable batteries Battery life: approximately 100 hours: AAA alkaline dry cell (A4 input continuously, display mode: Regular) Dimensions (W x D x H): 99 x 65 x 16 mm/3.90″ x 2.56″ x 0.63″ Weight: 66 g/2.33 oz (without batteries) Included items: Customer Notice (Dear Customer), Precautions, 3.5 mm mini to 6.3 mm (1/4″) standard adapter plug * Specifications and appearance are subject to change without notice for improvement.
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2024
www.korg.com
Published 09/2024
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