Boss TU-3 Chromatic Tuner Pedal

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
• 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

Specs

• Tuning Range
  • C0 (16.35 Hz)-- C8 (4,186 Hz)
• Reverence Pitch
  • A4 = 436-445 Hz (1 Hz step)
• Tuning Accuracy
  • +/- 1 cent
• Modes
  • Chromatic
  • Chromatic flat x 2
  • Guitar 
  • Guitar flat x 2
  • Bass
  • Bass flat x 2
• Display mode
  • Cent mode
  • Stream mode
• Power Supply 
  • Carbon-zinc battery (9 V, 6F22) or Alkaline battery (9 V, 6LR61)
• Bypass
  • Buffered Bypass
• Controls
  • Pedal Switch
  • MODE button
  • STREAM/CENT button
• Nominal Input level 
  • -20 dBu
• Input Impedance
  • 1 M ohm
• Nominal Output Level
  • -20 dBu
• Output Impedance
  • 1 k ohm
• Recommended Load Impedance 
  • 10 k ohms or greater
• Indicator
  • CHECK indicator (Serves also as battery check indicator)
• Connectors
  • INPUT jack
  • OUTPUT jack
  • BYPASS jack
  • DC IN jack
  • DC OUT jack
• Current Draw
  • 20 mA (DC 9 V)
  • 80 mA (DC 9 V, when High Brightness mode is on)
• Expected battery life under continuous use
  • Carbon: Approx. 5 hours
  • Alkaline: Approx. 21 hours
  • *These figures will vary depending on the actual conditions of use.
• Accessories
  • Owner's Manual
  • Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTE," and "Information")
  • Carbon-zinc battery (9V, 6F22)

Size and Weight

• Width 
  • 73 mm
  • 2-7/8 inches
• Depth 
  • 129 mm
  • 5-1/8 inches
• Height
  • 59 mm
  • 2-3/8 inches
• Weight (including battery)
  • 390 g 
  • 14 oz