Korg OT-120 Orchestral Chromatic Tuner
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Description
The Korg OT-120 is an orchestral chromatic tuner designed for brass, woodwind, and string players who demand precision. Its wide calibration range of A4 = 349 to 499 Hz covers historical and modern pitch standards. A large needle-type meter with fine and coarse modes provides detailed intonation feedback suitable for professional orchestral practice.
Features
Supports orchestral tuning scenarios including Baroque pitch (A=415), Classical pitch (A=430), and modern concert pitch (A=440-442). The Sound Out function generates reference tones through a built-in speaker with adjustable volume. A Sound Back mode listens to your input and plays back the nearest correct pitch. Memory backup saves calibration settings between sessions.
Specifications
- Type: Orchestral chromatic tuner
- Detection Range: C1 to C8
- Calibration: A4 = 349 to 499 Hz (1 Hz steps)
- Meter: Needle-type LCD (fine/coarse)
- Reference Tone: Sound Out + Sound Back modes
- Input: 1/4" jack + built-in mic
- Power: 2x AA batteries
In the Box
- Korg OT-120
- 2x AA batteries














