Korg GA2 2″ Guitar Tuner

Price: $24.62 - $17.99
(as of May 21, 2026 16:53:29 UTC – Details)

Product description

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A dedicated compact tuner for guitar/bass, with a stylish new look.

The GA series, long trusted as a standard guitar/bass tuner, returns with a fresh look and improved clarity. Its simple, stylish design now features larger note and string displays for easier reading. Selectable guitar and bass modes suit beginners and pros alike. With high precision, strong sensitivity, and dependable ease of use, the GA‑2 delivers stable tuning from home to studio to stage.

A needle-style meter with large high-visibility note name and string name

KORG’s needle-style meter that shows you the pitch quickly and accurately now has a note name and string name display area that’s approximately four times larger, making it easier than ever to read. Red and green LEDs to indicate the pitch discrepancy are also provided for even smoother tuning.

A compact body that’s slim and lightweight

The GA-2 is a pocket-sized card-type tuner that’s easy to carry anywhere. The rounded body is comfortable to hold in your hand, and has an even more stylish design that accents the battery compartment. It uses a new mechanism that lets you replace the battery by sliding the entire body, so there’s no risk of losing the battery compartment cover.

Approximately 200 hours of continuous use

The high-efficiency long-life design allows approximately 100 hours of continuous operation on two AAA zinc-carbon batteries or approximately 200 hours on alkaline batteries.

Tuning function suitable for guitar/bass

Guitar and Bass modes offer auto pitch detection for 7‑string guitars and 6‑string basses, with a built‑in mic for accurate acoustic tuning. Quinta Flat mode drops up to five semitones. Calibration adjusts from 430–450 Hz, and Sound Out mode provides a reference tone.

Specifications

Scale 12 note equal temperament Detection Range B0 bbbbb (23.12Hz) – B6 (1975.53Hz): Guitar/Bass Tone Reference Tone [GUITAR] 7B -> 6E -> 5A -> 4D -> 3G -> 2B -> 1E, [BASS] LB -> 4E -> 3A -> 2D -> 1G -> HC, (Pitch is 1 octave higher for GUITAR, 2 octaves higher for BASS) Tuning Modes Meter mode, Sound Out mode Flat Tuning 1-5 semitones (semitone steps) Detection Accuracy +/- 1 cent Sound Accuracy +/- 1.5 cent Connectors INPUT jack (1/4” monaural phone jack) Power Supply Two AAA batteries (3V) Battery Life Approximately 200 hours (alkaline batteries, Meter mode, A4 continuous input), Approximately 100 hours (zinc-carbon batteries, Meter mode, A4 continuous input) Accessories Contact Microphone CM-200 Included Items Two AAA batteries for verifying operation Dimensions 3.94” x 2.36” x 0.63” Weight 2.36 oz

Large, high visibility display with a needle-style meter
Compact, slim and lightweight body
Dedicated guitar and bass modes; Quinta flat tuning Mode
Adjustable calibration (430-450 Hz)
Up to 200 hours of battery life; five year warranty

Product summary

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