¡Obtenga asesoría en español!  Llámenos hoy a (800) 222-4701

Graph Tech PRB-5320-B0 5-string Bass Ratio 3+2 Y Key Tuning Machines , $115.40 - Add to Cart Skip to Product Information

Graph Tech PRB-5320-B0 5-string Bass Ratio 3+2 Y Key Tuning Machines

Bass Guitar Tuners, 3+2 "Y" Shape, Closed Back, with Ratio Technology
Graph Tech PRB-5320-B0 5-string Bass Ratio 3+2 Y Key Tuning Machines
Graph Tech PRB-5320-B0 5-string Bass Ratio 3+2 Y Key Tuning Machines
$11.62 Price Drop!
Was:

In Stock!

Only 2 left in stock! More on the way.
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 PRB-5320-B0 5-string Bass Ratio 3+2 Y Key Tuning Machines
In Stock!

Only 2 left in stock! More on the way.
$11.62 Price Drop!
Was:

Faster and More Accurate Bass Tuning

This article was Written By

Our Product Research Team

Get to know them!

Graph Tech Ratio Bass Tuners allow you to tune your bass guitar more quickly and accurately than conventional designs. Each tuner in the set sports 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." And that's exactly what Graph Tech Ratio Bass Tuners deliver.

Graph Tech's Ratio technology

Though it's a simple idea, Graph Tech's Ratio technology completely changes the way you tune your bass. All tuners are outfitted with gear ratios that ensure you attain the same response from your low B string as you do your high G. 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 you'll love how fast it is to get to Drop D and other alternate tunings.

Graph Tech: improve your playing experience

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 Bass Tuner Set (PRB-5320-B0) Features:

  • Each tuner reacts the same to the same amount of force
  • 3+2 set for 5-string bass guitar
  • 1 turn equals approximately 1 whole tone
  • Great for alternate and dropped tunings
  • Makes tuneups faster and easier
  • Quick and easy to install

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

Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.