Boss TU-3S Chromatic Tuner

Tuning is essential, it shouldn't be disruptive. The TU-3S is a solution that delivers world-class performance from a pedal with an elegant space-saving design. Modeled after the ubiquitous TU-3, the 3S offers a 21-segment LED meter with brightness control for ideal visibility in any environment. Accu-pitch arrows provide in-tune verification even from a distance with support for 7-string guitars and 6-string basses. Tune up to six semitones (half steps) below the standard (A440) pitch so you can Djent with total confidence. Take the stage with confidence and preserve that precious pedalboard real estate.

Boss TU-3S Features:

• Respected TU-3 tuning performance in a more compact size
• 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 modes, with support for 7-string guitars and 6-string basses
• Guitar Flat mode supports “drop” tunings up to six semitones below standard pitch
• Powered by optional PSA-series adapter; DC Out jack for powering up to seven BOSS compact effect pedals via an optional PCS-20A daisy-chain cable
• BOSS five-year warranty

Boss TU-3S Specifications:

• Tuning RangeC0 (16.35 Hz)--C8 (4,186 Hz)
• Reference PitchA4 = 436--445 Hz (1 Hz step)
• Tuning Accuracy+/- 1 cent
• ModesChromatic
  • Chromatic flat x2
  • Guitar
    • Guitar flat x2
  • Bass
    • Bass flat x3
  • Display modeCent mode
  • Stream mode
• Power SupplyAC adaptor (sold separately)
• Bypass: Buffered bypass
• Controls
  • MODE button
  • STREAM/CENT button
• Nominal Input Level: -20 dBu
• Input Impedance: 1 M ohm
• Nominal Output Level: -20 dBu
• Output Impedance1 k ohm
• Recommended Load Impedance: 10 k ohms or greater
• Indicator
  • CHECK indicator (Power on indicator)
• Connectors
  • INPUT jack: 1/4-inch phone type
  • OUTPUT jack: 1/4-inch phone type
  • DC IN jack
  • DC OUT jack
• Current Draw
  • 30 mA (DC 9 V)
  • 85 mA (DC 9 V, when High Brightness mode is on)
• Accessories
  • Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTE," and "Information")
  • Parallel DC cord (DC Plug x2)
  • Rubber foot
• Options (sold separately)
  • AC adaptor: PSA series
  • Parallel DC cord: PCS-20A(DC Plug x8)
• SIZE AND WEIGHT
  • Width
    • 73 mm
    • 2-7/8 inches
  • Depth
    • 84 mm
    • 3-5/16 inches
  • Height
    • 56 mm
    • 2-1/4 inches
  • Weight (including battery)
  • 220 g
  • 8 oz