Korg GA Custom Chromatic Tuner for Guitar and Acoustic Instruments, Black
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Korg GA Custom Chromatic Tuner for Guitar and Acoustic Instruments, Black

SKU: KOGACS MFR: GACS
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$37.99
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Key Features

  • Achieve precise tuning with this Korg chromatic tuner, accurate to +/- 0.1 cent!
  • Quickly tune your guitar or acoustic instrument using the clear, bright display.
  • Enjoy up to 50 hours of continuous use with this portable tuner's long battery life.
  • Easily calibrate from 436-445Hz in 1Hz steps for versatile tuning options.
  • Use this durable guitar tuner on stage or in the studio; it's built to last!
  • Get accurate readings for any song; this tuner supports A0 (27.50 Hz) - C8 (4186 Hz).
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Special Order?Estimated to Ship: 08/11/2025
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Questions & Answers

Shopper : Why Did You Choose This?SAMUEL C : It looks coolRICHARD C : I have one and it’s great! Got this for a friend

Reviews about this item

Review Summary

2022-12-01T07:24:38

Rated 5 out of 5

Beauty and brains...

It's a terrific little tuner with a beautiful display. It's 3D so you don't have to be looking directly at it. I don't use the pass-thru feature; I would have bought a pedal tuner if I needed that. I wanted something compact/portable that can use accept a cable but also has a mic and it had to be relatively accurate. +/-0.1 cents is quite respectable. The only thing I would change is give it the ability to stay on and preferably, accept a power adapter. Then I'd leave it permanently connect to a parallel output. They made a huge wall-mount version of this tuner but it was not nearly as accurate as this (by a factor of 10).

STEVEN G.

2022-01-12T08:43:32

Rated 5 out of 5

Good purchase

Excellent tuner and a great value.

Patrick F.

2020-11-09T08:51:25

Rated 4 out of 5

Still checking it out .

I DIDN'T USE IT MUCH YET BUT ITSEEMS PRETTY ACCURATE THE LOOK IS GREAT SO SO GOOD ??

KENNETH T.

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Korg GA Custom Chromatic Tuner Specifications

  • Compatibility

    Guitar and Acoustic Instruments

  • Scale

    12-note equal temperament

  • Detection Range

    A0 (27.50 Hz) - C8 (4186 Hz)

  • Calibration Range

    436-445Hz (1 Hz steps)

  • Detection Accuracy

    Within +/- 0.1 cent

  • Input Impedance

    1 MOhms (when tuner is on)

  • Connectors

    Input: Mono 1/4" jack
    Bypass: Mono 1/4" jack

  • Power Supply

    2x AAA batteries

  • Battery Life

    Approximately 50 hours (A4 continuous input, tuner on, display mode: Regular, using two AAA zinc-carbon batteries)

  • Dimensions (W x D x H)

    99 x 65 x 16mm / 3.90 x 2.56 x 0.63"

  • Weight

    83g / 2.93oz (Including battery)

  • UPC Code

    4959112145627

Models
Korg GA Custom Chromatic Tuner for Guitar and Acoustic Instruments, Black

Korg GA Custom Chromatic Tuner for Guitar and Acoustic Instruments, Black

SKU: KOGACS

MFR: GACS

$37.99

Special Order

Generally ships in 7-14 days, subject to availability

Korg PitchCrow-G Clip-On Tuner

Korg PitchCrow-G Clip-On Tuner

SKU: KOAW4GBK

MFR: AW4GBK

$37.99

Special Order

Generally ships in 7-14 days, subject to availability

Korg CA-50 Chromatic Tuner

Korg CA-50 Chromatic Tuner

SKU: KOCA50

MFR: CA50

$34.99

In Stock

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About Korg GA Custom Chromatic Tuner

FEATURED REVIEWS

Beauty and brains...

By STEVEN G.

It's a terrific little tuner with a beautiful display. It's 3D so you don't have to be looking directly at it. I don't use the pass-thru feature; I would have bought a pedal tuner if I needed that. I wanted something compact/portable that can use accept a cable but also has a mic and it had to be relatively accurate. +/-0.1 cents is quite respectable. The only thing I would change is give it the ability to stay on and preferably, accept a power adapter. Then I'd leave it permanently connect t...

View full Review

Good purchase

By Patrick F.

Excellent tuner and a great value.

Korg GA Custom Chromatic Tuner Features

  • High-precision compact tuner with an ultra-accurate tuning capability of +/- 0.1 cents
  • Innovative 3D visual meter and three versatile display modes for unparalleled visibility
  • Compact, flat design with a rubberized exterior for enhanced portability and grip
  • Built-in high-sensitivity mic for tuning a wide range of acoustic and orchestral instruments
  • Easy-to-attach clamp mechanism for a natural tuning experience
  • Available in standard black and limited-edition color variations for added style

Warranty Information

This product has a limited warranty of 36 months.

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Key Features

  • Achieve precise tuning with this Korg chromatic tuner, accurate to +/- 0.1 cent!
  • Quickly tune your guitar or acoustic instrument using the clear, bright display.
  • Enjoy up to 50 hours of continuous use with this portable tuner's long battery life.
  • Easily calibrate from 436-445Hz in 1Hz steps for versatile tuning options.
  • Use this durable guitar tuner on stage or in the studio; it's built to last!
  • Get accurate readings for any song; this tuner supports A0 (27.50 Hz) - C8 (4186 Hz).

What's in the box:

  • Korg GA Custom Chromatic Tuner
  • 2x AAA Batteries for Verifying Operation
  • Korg 3 Year Limited Warranty