Korg

Korg GA-2-MG Handheld Chromatic Tuner Silver

4.4 (72 reviews)

Tune guitars and basses quickly and accurately with the Korg GA-2 handheld chromatic tuner's high-visibility needle-style display.

$16.99*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The Korg GA-2-MG is a handheld chromatic tuner built for guitarists and bassists who want reliable pitch accuracy in a simple, portable format. Its needle-style meter provides smooth, precise visual feedback that many musicians prefer over segmented LED displays, and the large high-visibility screen ensures readability whether you're tuning backstage, in a practice room, or outdoors. Dedicated guitar and bass modes recognize string names automatically for quick tuning, while chromatic mode expands its usefulness to other instruments. Support for 7-string guitars and 6-string basses means extended-range players are covered without needing a specialized tuner.

Beyond standard tuning, the GA-2 includes Korg's Quinta Flat Tuning mode, which lets guitarists tune down in half-step increments up to five semitones below concert pitch — a feature that drop-tuning and metal players will find particularly useful. The adjustable calibration range of 410 to 480 Hz allows matching to orchestral standards or any custom reference pitch. Pure major and minor third indicators are a thoughtful addition that helps players fine-tune chord voicings beyond equal temperament. Pitch detection works via a built-in high-sensitivity microphone for acoustic instruments or through a direct cable connection for electrics, making the GA-2 a versatile tool that covers the essential tuning needs of most string players.

Key Features

Korg Model#GA2MG

Specifications

Brand
Korg
Model
GA-2-MG
Type
Handheld Chromatic Tuner
Color
Silver
Meter Type
Needle-Style
Display
Large, High-Visibility
Modes
Guitar, Bass, Chromatic
Guitar Support
7-string (7B through 1E)
Bass Support
6-string (Low-B, Hi-C)
Microphone
Built-in High-Sensitivity
Calibration Range
410–480 Hz
Special Features
Quinta Flat Tuning, Pure Major/Minor Third Indicators

Pros & Cons

👍 Pros

  • Supports extended range instruments including 7-string guitars and 6-string basses
  • Large needle-style display is easy to read on dark stages and in bright sunlight
  • Adjustable calibration range from 410 to 480 Hz accommodates non-standard reference pitches
  • Built-in microphone and cable input provide flexibility for both acoustic and electric instruments
  • Compact handheld size fits easily in a gig bag or guitar case pocket

👎 Cons

  • Requires a separate cable connection for accurate tuning in noisy environments since the built-in mic picks up ambient sound
  • Battery-powered operation means you need to carry spare batteries for extended sessions
  • No clip-on mounting option — must be held or placed on a flat surface during use
  • Basic needle-style meter lacks the backlit or color-coded visual feedback found on some competing tuners

Frequently Asked Questions

Yes, it supports 7-string guitars (7B through 1E) and 6-string basses (Low-B through Hi-C), and its chromatic mode can detect any pitch, making it usable for other instruments as well.
Quinta Flat Tuning allows you to tune your guitar down in half-step increments up to five semitones below standard pitch, which is useful for players who use drop tunings or need to match alternate tuning setups.
The GA-2 has a built-in high-sensitivity microphone for acoustic instruments and also accepts a 1/4-inch input cable for electric guitars and basses, giving you flexibility in how you connect.
Yes, the calibration is adjustable from 410 Hz to 480 Hz, so you can match orchestral tuning standards or any non-standard reference pitch your situation requires.
These indicators show you when a major or minor third interval is in tune according to pure (just) intonation rather than equal temperament, which is helpful for achieving smoother-sounding chords.