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Korg Sledgehammer Pro Clip-On Tuner  

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The Sledgehammer Pro Clip-On Tuner offers you ultra-high tuning accuracy (±0.1 cents) and has a 3D visual meter which provides amazing visibility.


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The Sledgehammer Pro Clip-On Tuner offers you ultra-high tuning accuracy (±0.1 cents) and has a 3D visual meter which provides amazing visibility.

  • Ultra-high tuning accuracy of ±0.1 cents
  • 3D visual meter provides revolutionary visibility
  • Three meter display modes
USA Warranty Policy

All Korg products purchased from a Korg USA authorized dealer are warranted to be free from defects in material and workmanship to the original consumer purchaser as listed below:

Labor: 1 Year
Parts: 1 Year

Exceptions: Tubes, AC Adapters, Foot Switches: 90 days

Warranty Requirements and Limitations:

-Proof of Warranty - The customer must provide proof of purchase in order to obtain warranty service. The dated sales slip or copy thereof is the only acceptable proof of purchase.

-The product must be purchased from a Korg USA authorized dealer and have a valid serial number.

Damage resulting from the following causes are excluded from the warranty set forth above:
-Misuse, including damage occurring during shipment, damage caused by battery leakage, accident, fire, unauthorized repairs, tampering, cosmetic damage or other types of damage which are the result of improper handling or abuse.
-The cleaning of controls or contacts due to exposure to dirty, dusty, or otherwise contaminated environment.
-Damage resulting from modification.
-Damage to units used for loan or rental.

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Register your new Korg keyboard, keyboard rack module or digital piano online and receive a certificate that extends the product warranty for an extra year from the date of purchase.

Pro Coverage gives you added warranty protection for your new gear. Stepping in where the manufacturer's "normal wear and tear" coverage ends, our Pro Coverage program offers you upgraded coverage if your product ever fails Read More.

Pro Coverage includes
  • Accidental damage protection (new gear only)
  • Expedited repair
  • Free shipping (for returns or repairs)
  • 100% coverage for commercial use
  • Extended return period
  • Extended price protection
  • No lemon guarantee
  • Free transfer of coverage to a new owner
  • Repair costs covered for up to three years from date of purchase
  • Repair authorization-toll-free by phone or via the web
  • Customer Reviews

Review Snapshot

by PowerReviews
KorgSledgehammer Pro Clip-on Tuner

(based on 4 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars




of respondents would recommend this to a friend.

Reviewed by 4 customers

Displaying reviews 1-4

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My Favorite

By Mack

from East Texas

About Me Professional Musician


  • Functional
  • Good Quality


    Best Uses

      Comments about Korg Sledgehammer Pro Clip-on Tuner:

      Best clip on I have used so far and I've used 10 or more different ones over the years.

      (2 of 2 customers found this review helpful)


      I'll tell you why its cool

      By Crunch Bite

      from Chicago, IL


      • Accurate


        Best Uses

          Comments about Korg Sledgehammer Pro Clip-on Tuner:

          This clip on tuner has two knobs. The left one is the on off switch and tuning modes 1,2,3. Now, I don't usually put in reviews for things I buy from the store, the tuning modes is what made me post this. Each one seems more sensitive and allows to get your strings locked on first try. Not gonna try and explain it, just go in to your local dealer and u can try it

          • Was this a gift?:
          • No

          (3 of 3 customers found this review helpful)


          Very quick and accurate!

          By Loui

          from Louisville, KY


          • Accuracy
          • Very Quick Tuning


          • I have none

          Best Uses

          • Acoustic Guitar Tuning
          • Bass Guitar Tuning

          Comments about Korg Sledgehammer Pro Clip-on Tuner:

          This product is just awesome! I have no complaints to make with this one. Previously, I have used snark guitar tuner, which breaks easily and sometimes very slow and not accurate. But this one, just plainly beautiful and accurate. Do you need a clip tuner for your acoustic guitar or bass? Buy this one! This one will satisfy you!!

          • Was this a gift?:
          • No

          (2 of 5 customers found this review helpful)


          Works great... in a quiet room

          By Chris

          from Garden Grove, CA

          Site Member

          Comments about Korg Sledgehammer Pro Clip-on Tuner:

          I own the Pitchblack rack tuner, which is amazing. Super accurate, easy to see, and just plain cool-looking. I bought this clip-on version and was so excited to get a small travel version of my favorite tuner. Worked great in my house. At the gig? Well, that was a different story. With the band that went on before us playing, I tried doing a quick tune of two locking-tremelo guitars before we went on. It's so sensitive to outside vibration and sound, that it wouldn't hold pitch for more than a second before drifting off the note I was playing. Made it completely impossible to tune your guitar. Tried it later in my hotel room while it was quiet, and it worked perfectly. Going in the trash and being replaced by the TC Electronic Polytune Clip as soon as it's available.

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