Korg OT-120 Orchestral Tuner w/ CM-400 Contact Microphone

WIDE-RANGE ORCHESTRAL TUNING: The Korg tuner is designed for tuning wind, string, and keyboard instruments, with a broad detection range from A0 to C8 and calibration support from A4=349–499 Hz in 1 Hz steps

NEEDLE METER WITH DUAL DISPLAY: A high-precision needle-type meter and backlit LCD provide real-time pitch feedback, with customizable needle response speeds and LED indicators for visibility in any environment

TRANSPOSE & HISTORICAL TEMPERAMENT SUPPORT: Supports 12 transposing keys for wind instruments and includes 8 historical temperament presets, ideal for classical and period instrument tuning

SOUND BACK MODE & REFERENCE TONES: Korg’s Sound Back mode plays reference tones matching your input pitch for ear training, and the built-in speaker delivers reference tones from C2 to C7, great for solo or group tuning

EVERYTHING IN ONE BOX: Austin Bazaar bundles your purchase with essential accessories, this bundle includes a microphone for accurate tuning directly from your instrument, along with an Austin Bazaar polishing cloth to keep your gear in mint condition

The Korg OT-120 Orchestral Tuner is a professional chromatic tuner for wind, string, brass, and keyboard instruments. Its vertical silver-aluminum body features a dual-display with a precise needle meter, backlit LCD, large mode dial, easy buttons, rear stand, and LED pitch indicators for visibility even in dim settings. With a wide range (A0–C8), calibration from A4=349–499 Hz, 12 transposing keys, and eight historical temperaments, it supports modern and period performance. The needle offers three response speeds, plus Auto and Manual modes for flexible accuracy. Korg’s Sound Back mode generates the nearest reference tone for combined visual and ear training, while the built-in speaker delivers strong, adjustable reference tones (C2–C7). Powered by two AAA batteries for 100+ hours or optional AC adaptor, the OT-120 includes a suede-tone soft case for portability.

Scale Types: 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
Tuning Modes: AUTO, MANUAL, SOUND BACK
Calibration: A4 = 349 – 499 Hz (1 Hz Steps)
Detection Accuracy: ±1 Cent
Tone Accuracy: ±1.5 Cent
Connectors: INPUT (1/4”), OUTPUT (1/4”), DC IN (9V)
Power Supply: Two AAA Batteries or AC Adapter
Battery Life: Approx. 100 Hours
Dimensions: 2.91x4.72x1.42 inches
Weight: 0.425 pounds
Accessories Included: Two Alkaline AAA Batteries, Suede-Tone Soft Case

Austin Bazaar bundles your purchase with essential accessories. This bundle includes a microphone for accurate tuning directly from your instrument, along with an Austin Bazaar polishing cloth to keep your gear in mint condition.