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Boss TU3 Chromatic Guitar & Bass Pedal Tuner

The world’s top-selling stage tuner, the BOSS TU-2, evolves and improves with the debut of the TU-3.


(7 reviews)


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MSRP: Old Price $149.99 Discounted Price $99.99 Save : $50.00 (33%)
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MSRP: Old Price $149.99 Discounted Price $99.99 Save : $50.00 (33%)
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Housed in a tank-tough BOSS stompbox body, the TU-3 features a smooth 21-segment LED meter with a High-Brightness mode that cuts through the harshest outdoor glare. Choose between Chromatic or Guitar/Bass tuning modes, and enjoy visual pinpoint tuning verification with the Accu-Pitch Sign function.

The TU-3 incorporates a convenient Note Name Indicator that can display notes of 7-string guitars and 6-string basses, while the Flat-Tuning mode can support up to six half-steps. It’s the new-standard tuner that no guitarist or bass player should be without!

Things You Will Get:

  • Tuner

Great tuner


Haven't used mine yet. But was pleased when I used a friend's once.It worked great.



This on my Live pedal board!!


Yes I have one and it's the best Live pedal investment I've made. It mutes your output when on and it's super accurate. We play in e flat so the drop tune mode is awesome. Built like a tank, you probably can't ever break it! -this is a staff review by skern at Sam Ash 57


Indianapolis, In


You get what you're looking for


Perect tuning pedal in my opinion. Simple, built well, what more can you ask for?


San Antonio TX


Reliable, Easy to Use Tuner


The Boss TU-3 is a simple, easy-to-use bypass tuner that serves it's purpose well. The LED display is easy to read, regardless of your environment/setting. This is a necessary and valuable resource for any guitarist/bassist.

Brian V

Huntington, NY


The Next Generation


I love my TU3. Its accurate, reliable, and easy to use. I had the TU2 for years and it was one of the most reliable pedals that I've owned. you want a great tuner that will do the job time after time. Get yourself a TU3 This is a real hands on product review from [email protected] Sam Ash Indianapolis


Indianapolis, IN


best tuner around


for the money, you can't get a better tuner pedal. you just can't.




Would by it again


Got it before I got into pedal board use. It continues to serve its purpose. However, on a pedal board the location must be considered because of the depress switch. A button switch would make it perfect for the toe tap unless you're using a bypass looper. The cut off for the tuning mode gets me in and out fast. Very easy to read.


Honolulu, HI


TU3 Chromatic Guitar & Bass Pedal Tuner

4.9 7


Other Features Chromatic and Guitar/Bass mode (tune by string number, with support for 7-string guitars and 6-string basses)
Model TU-3
Warranty Info:

TU3 Chromatic Guitar & Bass Pedal Tuner

Effects pedals: 5 years parts, 3 years labor All other products: 1 year parts, 90 days labor