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Boss TU-3 Compact Chromatic Tuner

The world's best known compact pedal manufacturer

Written by

Elliot Stent

The tuner that you still see on stages everywhere has just had it's latest update. The TU-3 brings Boss' legendary stomp pedal quality and ruggedness to the tuner world. 21 LED Segment display, high brightness, automatic muting when the tuner is on, and pedal power for up to 7 other Boss pedals - it's the tuner that no gigging guitarist or bassist should be without!

"Simple: a classic, updated. Success awaits you, TU-3." MusicRadar gave the Boss TU-3 a 4.5/5 review.

Here's what Boss say about the TU-3

The New World-Standard Tuner Has Arrived

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

  • 21-segment LED meter with brightness control
  • High-Brightness mode enhances meter visibility outdoors
  • 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
  • Signal is automatically muted when the tuner is on
  • Supplies power for up to 7 BOSS compact effect pedals


Inc. VAT


Next Delivery Due: Thursday, 29 March 2018  

UK Delivery £4.99

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