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Korg OT-120 Orchestral Tuner & Metronome


SKU: 673250

Tune wind and string instruments in a flash with the OT-120, a needle-type meter with a wide range and versatile functionality with a full 8 octave (A0 – C8) detection range for band and orchestra instruments. Plus multiple temperaments for classical and ethnic instruments.

SKU: 673250 Category:


KORG OT-120 Orchestral Tuner & Metronome

Includes: two (2) alkaline AAA batteries and suede-tone soft case

Made for orchestra, the KORG OT-120 Orchestral Tuner is a chromatic tuner that’s easy to hold and operate. Featuring a dual-display, an easy-to-see needle-type indicator and a backlit LCD screen that shows the battery level, sound output level, calibration, key and note name. Additional design features include a large dial easy to mode selection, finger-friendly buttons, and a rear-mounted stand that lets the unit stand by itself. Wind, string, and keyboard compatible so you can quickly tune any type of brass band or orchestral instrument with a wide range, extending from A0 to C8. Korg’s proprietary Sound Back mode provides a reference tone in a five-octave range extending from C2 (65.41 Hz) to C7 (2093 Hz).

Need some help before you order? Contact our Sales Team at (800)457-3501 or by email at [email protected] with any questions.

Product Features

  • Scales: 12 equal tempered, Pythagorean, Mean tone E flat/D sharp, Werckmeister III, Kirnberger III, Kellner, Vallotti, Young
  • Chromatic tuner with a wide 8-octave (A0 – C8) detection range that supports band and orchestra instruments – great for pianos or any other instrument that requires a large detection range
  • Dual display provides both a needle-type meter and an LCD for excellent visibility
  • Korg’s proprietary Sound Back mode provides a reference tone that’s ideal for tuning wind or string instruments, or for lessons
  • Multiple Temperaments support historical tunings
  • Transpose mode is convenient for wind instruments
  • Choose from three levels of needle response speed (slow, medium and fast)
  • Both auto and manual tuning modes are provided
  • Built-in reference tone plays in a five octave range
  • Broad range of calibration (349 Hz–499 Hz) based on a standard pitch of A=440
  • Built-in mic supports acoustic instruments
  • Multiple temperaments for classical and ethnic instruments
  • Slow, Medium and Fast needle movement, ideal for tuning multiple instruments with different attacks
  • 5-octave reference tone lets you play back pitches over a 5 octave range for tuning, or practicing pitch correction with vocals or wind instruments
  • Tuning accuracy within +/- 1 cent: Only extremely expensive strobe tuners are slightly more accurate
  • VU style meter
  • Energy-saving design for long battery life (approximately 100 hours)
  • Durable soft case included

Product Specs

  • 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 step)
  • Detection Accuracy: ± 1 cent
  • Tone Accuracy: ± 1.5 cent
  • Connectors: INPUT (1/4″ phone jack), OUTPUT (1/4″ phone jack), DC IN (9 V)
  • Power Supply: Two AAA batteries, or AC adapter (separately sold)
  • Battery Life: approx. 100 hours (with alkaline batteries, in meter mode (MEDIUM), A4 tone continuously input, without backlit)
  • Dimensions (W x D x H): 74 x 120 x 36 mm / 2.91″ x 4.72″ x 1.42″
  • Weight: 193 g (including batteries) / 6.81 oz. (including batteries)
  • Accessories: two alkaline AAA batteries for checking operation, a suede-tone soft case
  • Available Options (not included): AC adapter, CM-200 Contact Microphone

Additional information