Boss TU-3

Boss TU-3

Boss SD-1

Boss SD-1



Boss TU-3

EGP 2,268.60

Chromatic Tuner , The New World-Standard Tuner Has Arrived

Availability: Out of stock

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
More Information

 Tuning Range

C0 (16.35Hz)–C8 (4186Hz)

Reference Pitch

A4=436–445 Hz (1Hz step)

Tuning Accuracy

±1 cent

Power Supply

DC 9 V: Dry battery 6F22 (9 V) type (carbon), Dry battery 6LR61 (9 V) type (alkaline), AC Adaptor (PSA series: optional)

Current Draw

30 mA (DC 9 V), 85 mA (DC 9 V, when High Brightness mode is on)


Owner’s Manual, Leaflet (“USING THE UNIT SAFELY,” “IMPORTANT NOTES,” and “Information”), Dry battery/9 V type (6F22)


AC adaptor: PSA series, Parallel DC cord: PCS-20A

DimensionsWidth (W)73 mm, 2-7/8 inches*Depth (D)129 mm, 5-1/8 inches*Height (H)59 mm,2-3/8 inches
Weight390 g, 0 lbs. 14 oz.
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