New from Synergy: Marshall JCM800 Module

Graph Tech PRN-2411-CO Ratio Acoustic 3+3 Tuned Machine Heads - Contemporary Style / Chrome Finish

Acoustic Tuners, 3+3, Contemporary Shape, 2-pin Casing, and Ratio Technology - Chrome
Share
Item ID: PRN-2411-C0
Graph Tech PRN-2411-CO Ratio Acoustic 3+3 Tuned Machine Heads - Contemporary Style / Chrome Finish
Price:$97 and 74 cents
$17.00 suggested monthly payments with 6 month financing‡

In Stock!

Only 4 left in stock! More on the way.
Add to Cart
Sales engineer photo
Ask An Expert

Our expertly trained Sales Engineers are ready to help!

What is a Sales Engineer?
Sweetwater Gear Exchange

Have one to sell?
Check out Sweetwater's Gear Exchange!
Learn More

Graph Tech PRN-2411-CO Ratio Acoustic 3+3 Tuned Machine Heads - Contemporary Style / Chrome Finish
In Stock!
Price:$97 and 74 cents
Add to Cart
Add to list
Skip to Description
Most Popular Accessories & Related Items
Back to navigation

This article was Written By

Our Product Research Team

Get to know them!

Faster and More Accurate Tuning for Your Acoustic

Graph Tech's Ratio Acoustic Tuned Machine Heads offer a revolutionary new experience in ensuring your guitar is tuned more quickly and accurately than conventional tuner designs. Each tuner in the set boasts a custom gear ratio that makes each machine head react the same — roughly one full turn per whole tone. Because each string reacts the same, not only is tuning a more pleasant experience, but nailing alternate tunings is a much faster process. Graph Tech's mission statement is, "To Improve Your Playing Experience." They've nailed it with the Ratio Acoustic Tuned Machine Heads.

Graph Tech's Ratio technology

Though it's a simple idea, Graph Tech's Ratio technology completely changes the way you tune your guitar. All six strings are outfitted with gear ratios that ensure you attain the same response from your wound low E string as you do your unwound high E. No matter what string you are tuning, you'll notice that one full turn of the tuner equates to roughly one whole tone pitch change. The Ratio technology makes nailing your pitch much easier and faster. And the Ratio Acoustic Tuned Machine Heads also work great on electric string sets with a wound G string.

Easy installation with no drilling

One of the greatest benefits of the Ratio Acoustic Tuned Machine Head system is that they install onto your guitar's headstock without any drilling or other destructive procedures and are completely reversible. Graph Tech's InvisoMatch mounting plates ship with the tuners. The machine heads mount directly to those plates and aren't screwed into your instrument. As their name would suggest, the InvisoMatch mounting plates are completely hidden by the Ratio Acoustic Tuned Machine Heads and offer a sleek, low-profile look.

Graph Tech

Graph Tech has made it their personal mission to supply the products that will make your instrument play better, sound better, and perform better. From the company's popular String Saver saddles to their TUSQ string nuts that can be found on countless manufacturers' guitars, the company's products are a mainstay in the guitar and bass industry. Just about every player at Sweetwater owns something created by Graph Tech, because — like their mission statement demands — they never fail to improve our playing experience.

Graph Tech Ratio Acoustic Tuned Machine Heads Features:

  • Tuner machine heads that make tuning easier and faster
  • Each tuner reacts the same to the same amount of force
  • Also works perfectly for electric string sets with a wound G string
  • Classic design for a vintage appeal
  • 1 turn is approximately 1 whole tone
  • InvisoMatch mounting plates allow quick mounting with no extra screw holes

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

Extra peace of mind at no extra cost.

  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
  • Fix it the first time with our award-winning, factory-certified Service Department
Learn More about Total Confidence Coverage
Back to navigation

Tech Specs

  • Intended Instrument: Acoustic Guitar
  • Configuration: 3+3
  • Finish: Contemporary Chrome
  • Gear Ratio: 39:1, 24:1, 20:1, 14:1, 20:1, 12:1
  • Peg Diameter: 0.234" (peg), 0.385" (9.7mm peg hole)
  • Manufacturer Part Number: PRN-2411-C0

What Makes Our Sales Engineers Great?

Sweetwater Sales Engineers are a world-class team of experts dedicated to you. Hand selected from across the globe, each brings a wealth of experience and expertise in the world of music gear to provide you with unparalleled service completely free of charge. Friendly relationships, real trust, and the right gear are only a call or a click away!

Back to navigation

Reviews

EVH Wolfgang standard replacement
The tuners on my 2023 EVH Wolfgang standard started feeling JUMPY while tuning. Issac my engineer and I did some research and found these to try, even though they are labeled acoustic tuners. They are a little bigger then the standard tuners, but fix great, but a tight fit.
Thanks Isaac Alvarez.
Drop in fit, make tuning intuitive and easy
These tuners are fantastic and high quality. I don’t need a tuner to quickly switch between drop D and standard tuning, just one full turn of the E string tuner is all it takes. Drop in fit to my Yamaha A3R
Music background: Beginner
Great Tuned Machine Heads
I bought these to replace the ones on my Teton acoustic guitar. No problems installing and they fit perfect. They work way better than the stock ones.
Nice Tuners
The kit installed easily without modifications, they have been a nice add.
Music background: Beginner
Graph Tech tuning machines
These come with plates which will work for all types of tuning machines. They are numbered so ratios match up correctly.
Installation was easy after identifying the correct plate for my tuners.
I am impressed with them after having them on for a while. I am happy I purchased them.
I recommend them as replacement tuning machines.
Music background: I have played guitar for 55 years. I now just play for enjoyment but have played professionally when I was younger.