Korg GA1 Digital Guitar and Bass Tuner


  • Guitar and Bass Tuner
SKU: GA-1 Categories: , Product Brand:


  • Ultra-compact LCD needle-style dedicated Guitar and Bass Tuner
  • High-precision LCD needle-type meter for stable tuning.
  • Bass Mode: As a bass tuner, the GA-1 offer support for 5 and 6 string basses.
  • Guitar Mode: As a guitar tuner, the GA-1 offer support for 7 string guitars.
  • Quinta Flat Tuning mode lets you tune 1–5 semitones flat.
  • Sound Out can produce a reference tone from the internal speaker.
  • Auto Power Off function conserves battery life.
  • Approximately 100 hours of continuous use.

High accuracy and superb functionality have made Korg guitar and bass tuners the worldwide favorite. The GA-1 is the latest addition to our best-selling GA series of tuners. With even more features, like a pitch reference tone and quinta-flat tuning, the GA-1 Guitar Tuner packs basic functionality and convenient tuning functions into an ultra-compact body.


12-note equal temperament
Detection Range
B0♭♭♭♭♭(23.12Hz)– B6(1975.54Hz): for guitar and bass sounds
Reference Tone
[GUITAR] 7B->6E->5A->4D->3G->2B->1E
[BASS] LB->4E->3A->2D->1G->HC
Tuning Modes
Flat Tuning
Semitone steps of 1 semitone (b) 5semitones (bbbbb)
Detecction Accuracy
+/- 1 cents or better
Tone Accuracy
+/- 1.5 cents or better
INPUT jack (1/4” monaural phone jack)
Power Supply
Two AAA batteries (3V)
Battery Life
Approximately 100 hours (Meter mode, continuous A4 input, conventional batteries)
Dimensions (W x D x H)
102 x 59 x 16 mm / 4.02”x 2.32” x 0.63”
72 g /2.54 oz (Including batteries)
Two AAA batteries for verifying operation