Boss Chromatic Tuner

The Boss Chromatic Tuner which evolved from the world's top selling stage tuner, the Boss TU-2, 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. It also 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.

Choose between Chromatic or Guitar/Bass tuning modes, and enjoy visual pinpoint tuning verification with the Accu-Pitch Sign function.


-21-segment LED meter with brightness control
-High-Brightness mode enhances meter visibility outdoors
-Accurate to +/- one cent
-Accu-Pitch Sign function provides visual verification when tuning is complete
-Chromatic and Guitar/Bass mode (tune by string number, with support for 7-string guitars and 6-string basses)
-Flat tuning is supported with Guitar Flat mode, which allows for “drop” tunings up to six semitones below standard pitch
-Tuner automatically mutes when the tuner is on
-Supplies power for up to seven BOSS compact effect pedals
-BOSS five-year warranty

Brand Boss
Shipping Weight 0.5000kg

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