Boss Chromatic Tuner TU-3S loop

SKU: 4-TU3-S


The BOSS TU-3 is the world's most popular stompbox tuner. It is used and praised by musicians for its reliable results and unbreakable durability. The TU-3S is smaller in size but provides the same performance and industry standard. It is made to save valuable space in your pedalboard. The display and tuning functions are identical to those of the TU-3. Only the pedal switch was eliminated. The TU-3S is always on and is designed to be used with switching systems such as the BOSS ES-8 and ES-5. It is perfectly suited for setups where space (saving) is important.

  • Respected TU-3 tuning with much smaller dimensions
  • 21 piece LED meter with adjustable brightness
  • High Brightness mode improves meter visibility in outdoor locations
  • Accu-Pitch Sign function provides visual verification when tuning is complete
  • Chromatic and Guitar/Bass modes, supporting seven-string guitars and six-string basses
  • Guitar Flat mode supports drop tunings up to six semitones below standard pitch
  • Also works with an optional PSA-series power adapter; DC Out jack that can power up to seven BOSS compact effect pedals via an optional PCS-20A daisy-chain cable
  • Five-year BOSS warranty