BOSS TU-3 Chromatic Tuner

The World-Standard Tuner

The BOSS TU-3, an advancement of the best-selling TU-2 stage tuner, comes in a rugged BOSS stompbox design. It offers a clear 21-segment LED display with a High-Brightness mode for excellent visibility even in bright outdoor conditions. Users can select Chromatic or Guitar/Bass tuning modes and benefit from the Accu-Pitch Sign for precise tuning confirmation. The tuner also includes a Note Name Indicator compatible with 7-string guitars and 6-string basses, plus a Flat-Tuning mode supporting up to six half-steps. This reliable tuner sets the standard for professional guitarists and bassists.

• 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