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Pre-Owned Korg OT-120 Orchestral Tuner

Item: KGOT120USD

This Korg OT-120 is pre-owned but in perfect condition with box and paperwork.

The OT-120 Orchestral Chromatic Tuner is intended for orchestral instruments but will provide superior performance with any instrument. Analog tuners, with actual meters, are extremely accurate and the choice of many professionals. 

The OT-120 features a dual-display, an easy-to-see needle-type indicator and a backlit LCD screen that shows the battery life, sound output level, calibration, key and note name. Additional design features include a large dial that makes it easy to select the desired mode, soft-touch buttons and a rear-mounted stand that lets the unit stand by itself. A sophisticated silver aluminum panel contributes to its sleek, new look.

You can choose from two tuning modes; Auto mode, which automatically detects the pitch of a single note you play on your instrument, or Manual mode, which lets you specify the desired note name. In Manual mode the needle movement is shown in a range of ±50 cents, letting you view the tuning discrepancy over a wide range. In addition to the excellent visibility unique to a needle-type meter, the LEDs located below the meter also indicate pitch deviation or a perfect match, making precise tuning easy even in dim locations.

The OT-120 produces a reference tone in a five-octave range extending from C2 (65.41 Hz) to C7 (2093 Hz). You can switch the output level in two stages. The large speaker allows for more volume while not being obstructed even when using the stand, ensuring that the reference tone is clearly audible.

The OT-120 also provides Korg's proprietary Sound Back mode. This mode lets you connect an optional CM-100 contact mic to the input jack, and automatically make the OT-120's speaker produce a reference tone for the note that is closest to the input pitch you play on your instrument. The meter will also indicate the input pitch, letting you tune using your eyes as well as your ears for greater accuracy – and also providing a great way to train your sense of pitch.


  • Scale: 12 equal tempered, Pythagorean, Werckmeister III, Vallotti, Mean Tone Eb, Kirnberger III, Young, Mean Tone D#, Kellner
  • Transpose Range C, C#, D, Eb, E, F, F#, G, G#, A, Bb, B
  • Detection Range A0 (27.50 Hz) - C8 (4186 Hz)
  • Reference Tone:
    C2 (65.41 Hz) - C7 (2093 Hz), five octave,
    two-step volume control
  • Calibration A4 = 349 - 499 Hz (1 Hz steps)
  • Detection Accuracy ± 1 cent
  • Sound Accuracy ± 1.5 cent
  • Connections INPUT (1/4" jack), OUTPUT (1/4" jack), DC IN (9 V)
  • Power Supply:
    two AAA batteries, or AC adapter
    (sold separately)
  • Battery Life approx. 100 hours (with alkaline batteries, in meter mode (MEDIUM), continuous A4 tone, without backlit)
  • Dimensions:
    2.91" (W) x 4.71" (D) x 1.42" (H) /
    74 (W) x 120 (D) x 36 (H) mm
  • Weight:
    6.81 oz. (including batteries) /
    193 g (including batteries)
  • Options:
    CM-100 Contact Microphone,
    AC adapter model - A30950/KA183 (sold separately)
    9V 500~600mA Center Pin (-)

List price: $139.00

Price: $85.99

You Save: $53.01 (38%)

Available for immediate shipping.
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KGOT120USD - OT-120 Orchestral Tuner
Price $85.99

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What is Pre-Owned?

This Pre-Owned item is a recent purchase that we have received back on trade and is in excellent original condition. We have gone over this product thoroughly in order to ensure it's integrity. Here is a chance to save.