Skip to main content Skip to footer
Get it by Christmas - $10 2-day shipping
Looking for Coupons?Call us Hablamos Español  
MF MD HG01 Biggest Coupon 12-13-17
Top Rated
Korg Logo
SKU 
210131 000000000

Korg GA-40 Electronic Guitar and Bass Tuner

  • Write a Review

The GA-40 Electronic Guitar and Bass Tuner is equipped with an output jack so you can leave your amp plugged in. An ultra-large LCD screen provides e...Click To Read More About This Product

In Stock & Ready To Ship

Gold Coverage: (What’s This?)
    Warranty Options
  • Shipping (48 Contiguous U.S. States)
    FREE
  • Your Price :
    $1899
  Add to Cart
Add to Wish List

Earn up to 152 reward points.

See All Korg Tuners
OVERVIEW

Leave your amp plugged in while you tune up.

The GA-40 Electronic Guitar and Bass Tuner is equipped with an output jack so you can leave your amp plugged in. An ultra-large LCD screen provides excellent visibility. Adjustable calibration range (410-480Hz). Tunes 6 & 7 string guitars and 4-, 5-, and 6-string basses. Pure major/minor 3rd pitch indication marks. Includes reference tone, microphone, speaker, folding stand, auto power off, memory backup, and batteries. This chromatic auto-tuner works with all types of instruments.

Dedicated guitar and bass tuner with large LCD for easy viewing
The GA-40 is a dedicated, easy-to-operate guitar/bass tuner with automatic pitch detection. In Guitar mode it supports seven-string guitars (7B through 1E), and in Bass mode it supports six-string basses (Low-B and Hi-C). With the precision you expect from KORG, the GA-40 indicates the pitch quickly and accurately. The LCD needle-style display provides both the accuracy of an LCD as well as the easy viewing of a needle indicator, and the display has been enlarged for even better visibility. You can also use the built-in high-sensitivity microphone to tune an acoustic guitar.

Sound Out function produces a reference tone from the internal speaker
In addition to letting you tune visually using the meter, the GA-40 provides a Sound Out function that plays a reference tone through the internal speaker, letting you tune by ear. Each time you press the Sound switch, the tone will cycle through 7B_6E_5A_4D_3G_2B_1E in Guitar mode, or through LB_4E_3A_2D_1G_HC in Bass mode.

Quinta Flat Tuning mode
To support the dropped tunings used in heavy metal styles to produce a powerfully massive sound, the GA-40 provides a Quinta Flat Tuning mode that lets you detect dropped tunings of one through five semitones. This lets you tune super-long scale guitars that extend below the pitch range of conventional guitars.

Conveniently thin and compact
The GA-40 gives you convenient guitar and bass tuning functionality in a pocket-sized package, making it easy to tune whether you're on stage or in the studio. An output jack (bypass) has been added, making it easy to check the tuning even while you're performing.

The stand on the back lets you place the tuner on any surface.

Auto Power Off function
The Auto Power Off function automatically turns the power off after the unit has been left on for twenty minutes, preventing the batteries from running down needlessly.

Approximately 85 hours of continuous use
The GA-40 is designed for long battery life, and allows approximately 85 hours of continuous use (continuous A4 input, Meter mode, zinc-carbon batteries).

*Even if a sound is within the detectable pitch range, detection may be unsuccessful for instrumental sounds that contain a large number of overtones or that decay rapidly.

Korg tuners and metronomes purchased from a Korg USA authorized dealer now have a three year warranty.

FEATURES
  • A compact tuner designed specifically for guitar and bass, with excellent performance and convenient functionality.
  • Large, high-precision meter-type display for stable tuning indication.
  • Quinta-Flat Tuning mode allows dropped tunings from one to five semitones.
  • Supports tuning of seven-string guitars and six-string basses.
  • Sound Out function lets you produce a reference tone from the internal speaker.
  • Bypass function.
  • Auto Power Off function saves the battery even if you forget to turn off the tuner.
  • Memory Backup function.
  • Approximately 85 hours of continuous use.
Reviews
Loading....

Review Snapshot

by PowerReviews
KorgGA-40 Electronic Guitar and Bass Tuner
 
4.3

(based on 39 reviews)

Ratings Distribution

  • 5 Stars

     

    (24)

  • 4 Stars

     

    (9)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (2)

  • 1 Stars

     

    (3)

92%

of respondents would recommend this to a friend.

Pros

  • Easy to use (23)
  • Good quality (21)
  • Functional (19)
  • Improves sound (6)

Cons

No Cons

Best Uses

  • Practicing (15)
  • Back-up (8)
  • Concerts (4)
    • Reviewer Profile:
    • Experienced (17), Professional musician (5), Novice (4)

Most Liked Positive Review

 

Saul Gomez

I just got this tuner yesterday and it is an excellent. I got it for my new bass, since I was using my church's tuner and I wanted my own. First, the physical...Read complete review

I just got this tuner yesterday and it is an excellent. I got it for my new bass, since I was using my church's tuner and I wanted my own. First, the physical aspect: It is really cool looking, a rectangular shape, black, its rounded from the back, it even has a little paddle on the back that u can flip out so it will stand up on a flat surface angled at you, another great thing is that it has a battery door outside; therefore, you don?t have to open up the tuner and place the batteries inside (it uses 2 AAA batteries, they are included) like in most tuners. Overall, it is a fancy looking tuner that looks great. Now, the Input/Output: Obviously it has the input for an instrument cable; it?s all good with that. It also has an output for an instrument cable to go from your tuner to the amp. I tested the output function and if you plug it to your amp, it will play the sounds from your tuner out of your amp and also the tuner speakers; you can leave your tuner plugged in and output it to your amp and play your bass/guitar while checking the tuning, the tuner does not lower the quality of the sound from the bass/guitar (unless u are using bad cables, yes, you need 2 cables in order to do this). Overall, I liked this function, it works perfectly, and even though I don?t think ill use this function so much, I still like it and it doesn?t bother me with having it, it?s a plus. I like the screen on the tuner; it?s a large display, really clear and easy to see. It has the 3 lights, they are bright and work perfectly fine, reds for too flat and to sharp, the middle one is green for the perfect tone. Now the performance and efficiency, the tuning is really precise, it picks up all the tones of my bass and also on my guitar, when they are plugged in and also when they are not, though the microphone, both (yes, even the bass) the microphone is really responsive and real accurate. For the bass, it tunes the 4 strings, the 5th string (LowB), and the 6th string. For the guitar it picks the 6 strings and the 7th (LowB). It is a perfect tuner, works perfect for me, and the price is sweet. I would recommend it. I might buy another one to carry on my guitar gig bag as well as on my base case.

VS

Most Liked Negative Review

 

worthless

This tuner is absolutely horrible. It doesn't pick up the notes even when the instrument is plugged in to the input jack. Out of personal preference, I always tune my guitars two semitones...Read complete review

This tuner is absolutely horrible. It doesn't pick up the notes even when the instrument is plugged in to the input jack. Out of personal preference, I always tune my guitars two semitones sharp (442 instead of 440), but this tuner only goes to 5 semitones flat. So not only does it not do what I want, but its very ineffecient and low quality. If you want the best non-pedal tuner you can get, buy the Korg CA-30!!

Reviewed by 39 customers

Displaying reviews 1-20

Back to top

Previous | Next »

(8 of 8 customers found this review helpful)

 
5.0

Saul Gomez

By Saúl Gómez

from Somerton, Arizona

See all my reviews

Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

I just got this tuner yesterday and it is an excellent. I got it for my new bass, since I was using my church's tuner and I wanted my own. First, the physical aspect: It is really cool looking, a rectangular shape, black, its rounded from the back, it even has a little paddle on the back that u can flip out so it will stand up on a flat surface angled at you, another great thing is that it has a battery door outside; therefore, you don?t have to open up the tuner and place the batteries inside (it uses 2 AAA batteries, they are included) like in most tuners. Overall, it is a fancy looking tuner that looks great. Now, the Input/Output: Obviously it has the input for an instrument cable; it?s all good with that. It also has an output for an instrument cable to go from your tuner to the amp. I tested the output function and if you plug it to your amp, it will play the sounds from your tuner out of your amp and also the tuner speakers; you can leave your tuner plugged in and output it to your amp and play your bass/guitar while checking the tuning, the tuner does not lower the quality of the sound from the bass/guitar (unless u are using bad cables, yes, you need 2 cables in order to do this). Overall, I liked this function, it works perfectly, and even though I don?t think ill use this function so much, I still like it and it doesn?t bother me with having it, it?s a plus. I like the screen on the tuner; it?s a large display, really clear and easy to see. It has the 3 lights, they are bright and work perfectly fine, reds for too flat and to sharp, the middle one is green for the perfect tone. Now the performance and efficiency, the tuning is really precise, it picks up all the tones of my bass and also on my guitar, when they are plugged in and also when they are not, though the microphone, both (yes, even the bass) the microphone is really responsive and real accurate. For the bass, it tunes the 4 strings, the 5th string (LowB), and the 6th string. For the guitar it picks the 6 strings and the 7th (LowB). It is a perfect tuner, works perfect for me, and the price is sweet. I would recommend it. I might buy another one to carry on my guitar gig bag as well as on my base case.

(7 of 7 customers found this review helpful)

 
4.0

Super tuner for the price

By David Richmond

from Portland, Oregon

Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

I have owned anoth I er tuner that I paid a lot more for and it did not work as well as this one. I love this tuner!
Having both the sharp and flat LED's and the meter was great. You can tell very quickly which way you need to go with the LED's and then tune more finely using the meter.
Solid tuner for the value

(6 of 6 customers found this review helpful)

 
5.0

It was time to upgrade

By Charles Tolbert

from Georgia

See all my reviews

Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

Every guitar play would be happy with this turner.
I have been using one of the older Korg tuners for over 20 years. My cousin needed a turner, so I gave mine to him and purchased this one for myself. The older on cost over $70.00 when I bought it and I was very happy with it. But the new has it really out classed at an increditably low price. All you have to do with this one is turn it on. It figures out for itself which string you are tuning. Great tuner.
Well built and compact.
Incredible value.

(6 of 6 customers found this review helpful)

 
5.0

Great tuner

By SkylerR.

from in good ol Indiana

See all my reviews

Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

Overall its a great tuner and for the price you cant beat highly recommend.
This thing is great it knows what string you're playing without having to push a button which makes tuning fast and easy and the sound out mode is great for learning how to tune by ear.
Quality is great it has a hard plastic shell that seems to be durable the screen is fairly strong too my 50lb dog jumped on the table while i was using it and stepped on the screen never broke or scratched.
what can i say its a cheap durable tuner great for beginners.

(5 of 5 customers found this review helpful)

 
5.0

I don't know why this has negative reviews

By Haffblynd

from Rainier, WA

See all my reviews

Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

I got the tuner about 3 weeks ago upgrading from the Korg GA-30 and let me tell you, It's well worth your money. I have a guitar and a bass and constantly tune and retune both, and this little thing makes down-tuning a breeze, just hit this flat button a few times. Not to mention the foldable stand in the back and the output jack (given you have 2 cables or a pedal coupler).Even if you don't like it, you cant go wrong with a price like 15 bucks. Best tuner in its class, hands down - Just buy it!

(4 of 4 customers found this review helpful)

 
4.0

GA-40 Tuner

By Searching Bear

from Canton, Ohio

See all my reviews

Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

It's a tuner. It does what it is supposed to do. I use alot of odd tuning and this tuner doesn't show you the actual notes. It just tells you that you are flat a step or two. I prefer a standard tuner that tells me what exact note. Although I do like the bass switch. My other tuner has difficulty with the lower bass notes. Overall, it works well.

(4 of 4 customers found this review helpful)

 
5.0

Best tuner ever!

By Cristian Delgado

from Winslow, AZ

See all my reviews

Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

I recieved this tuner in the mail the other day along with my epiphone SG special edition. I tuned it up and started shredding within 10min. Would reconmend this to anyone!
Awesome
Awesome for the price!

(4 of 4 customers found this review helpful)

 
5.0

Great Tuner

By 4wrFfZfk7

from Undisclosed

Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

I have had the GA-30 guitar/bass tuner for some time now and just recently got to try out the GA-40. Both are very good. Picks up bass signals with no trouble, and tunes my lowe B string very accurately. My friend let me try his Boss Tuner stompbox and, my Korg tuned the B string better and quicker. Since it takes up less space than the stompbox, I think I will just use this on the pedalboard, because the LEDs tell you whether you are flat or sharp in low light situations where the needle is not visible.

(3 of 5 customers found this review helpful)

 
2.0

Go with another tuner

By Anonymous

from Undisclosed

Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

THis tuner is not so great. In fact it was horrible. It only tunes to regular under notes it wants to register. It never picks up notes no mater how hard or fast you pick the strings. Absolutely horrible.

(2 of 2 customers found this review helpful)

 
5.0

Works as expected with a surprise

By Blue Lou

from Hudson Valley, NY

About Me Experienced

See all my reviews

Verified Buyer

Pros

  • Easy To Use
  • Functional
  • Good Quality
  • Improves Sound

Cons

    Best Uses

      Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

      Maybe I didn't read the specs carefully but I was surprised and delighted to learn that the tuner turned itself off after a time.

      (2 of 3 customers found this review helpful)

       
      1.0

      worthless

      By bryan-H.pli

      from Poulsbo, WA

      See all my reviews

      Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

      This tuner is absolutely horrible. It doesn't pick up the notes even when the instrument is plugged in to the input jack. Out of personal preference, I always tune my guitars two semitones sharp (442 instead of 440), but this tuner only goes to 5 semitones flat. So not only does it not do what I want, but its very ineffecient and low quality. If you want the best non-pedal tuner you can get, buy the Korg CA-30!!

      (2 of 2 customers found this review helpful)

       
      5.0

      basic, but lots of value

      By micah AKA Basshippy

      from Denver, Colorado

      See all my reviews

      Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

      This thing is fun and great. It's tuning ability is very accurate and u can tune just about anything. YEA!

      (1 of 1 customers found this review helpful)

       
      4.0

      Great for tuning while playing.

      By Kingbee

      from Northeastern New Mexico

      About Me Experienced

      Verified Buyer

      Pros

      • Easy To Use
      • Good Quality

      Cons

        Best Uses

        • Practicing

        Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

        I bought this tuner because my other Korg tuner finally quit working after 8 years of service. I wanted a tuner with an output as my old tuner had only an input. I really like that I can tune between songs or during a song when I'm not playing. The one problem I'm having is that the meter arrow is too sensitive. It jumps all over when I'm trying to tune and it takes twice as long now to tune than before with my old Korg tuner. Maybe that's the difference between this tuner and my other tuner. I'll just have to get used to the heightened sensitivity. Overall, I really like this tuner.

        (1 of 2 customers found this review helpful)

         
        1.0

        Get a chromatic tuner.

        By get a chromatic tuner

        from Watertown, WI

        Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

        This tuner only picks up a note when it chooses. It is also very limited in the notes that it can pick up.

         
        5.0

        Great product for price

        By JR

        from Oildale

        About Me Novice

        Verified Buyer

        Pros

        • Easy To Use
        • Functional
        • Good Quality

        Cons

          Best Uses

            Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

            Website easy to navigate. Timely delivery

             
            5.0

            Definite winner -- the flat tuner is handy.

            By Frets at 50

            from Las Vegas, NV

            About Me Experienced

            See all my reviews

            Verified Buyer

            Pros

            • Easy To Use
            • Functional
            • Good Quality

            Cons

              Best Uses

              • Backup
              • Practicing

              Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

              Just for tuning.

               
              5.0

              I would but this item again.

              By Roadrunner

              from Bangor, PA

              About Me Novice

              Verified Buyer

              Pros

              • Easy To Use

              Cons

                Best Uses

                • Practicing

                Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

                Easy to read display.

                 
                5.0

                Fav tuner

                By Sixfalls

                from TN

                About Me Experienced

                See all my reviews

                Verified Reviewer

                Pros

                • Easy To Use
                • Functional
                • Good Quality
                • Improves Sound

                Cons

                  Best Uses

                  • Practicing

                  Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

                  This is my second one. Batteries corroded in my last one. Easy reliable and dead on. Works on my acoustics, and electric guitars.

                   
                  4.0

                  Good Tuner

                  By Terry

                  from Sierra Vista, Arizona

                  About Me Experienced

                  Verified Buyer

                  Pros

                  • Easy To Use
                  • Good Quality

                  Cons

                    Best Uses

                      Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

                      This tuner will do the job it's intended to do, tuning a bass or six string guitar. I found that to intonate your guitar the tuning room should be small with no added noises. Other than that, this tuner intonated my guitars well and improved the sound.

                       
                      3.0

                      Good cheap tuner.

                      By DOC

                      from Eden Valley, Minnesota

                      About Me Professional Musician

                      See all my reviews

                      Verified Buyer

                      Pros

                      • Easy To Use
                      • Functional
                      • Good quality for the price.

                      Cons

                        Best Uses

                        • Backup
                        • Practicing

                        Comments about Korg GA-40 Electronic Guitar and Bass Tuner:

                        Korg makes many good cheap tuners and some upper end ones also. I use them a lot for gifts to my friends.

                        Displaying reviews 1-20

                        Back to top

                        Previous | Next »

                        You are changing the Ship-To country.

                        Our product catalog varies by country due to manufacturer restrictions. If you change the Ship-To country, some or all of the items in your cart may not ship to the new destination.