Details

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
  

• Tuning Range: C0 (16.35 Hz)--C8 (4,186 Hz)
  
• Reference Pitch: A4 = 436--445 Hz (1 Hz step)
  
• Tuning Accuracy: +/- 1 cent
  
• Modes: 
  
  • Chromatic
    
  • Chromatic flat x2
    
  • Guitar
    
  • Guitar flat x2
    
  • Bass
    
  • Bass flat x3 
    
  • Display mode: 
    
  • Cent mode
    
  • Stream mode
    
• Power Supply: 
  
  • Carbon-zinc battery (9V, 6F22) or Alkaline battery (9V, 6LR61)
    
  • AC adaptor (sold separately)
    
• 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: 30 mA (DC 9 V)
  
  • 85 mA (DC 9 V, when High Brightness mode is on)
    
• Expected battery life under continuous use: 
  
  • Carbon: Approx. 12.0 hours
    
  • Alkaline: Approx. 23.5 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)
    
• Options (sold separately): AC adaptor: PSA series
  
  • Parallel DC cord: PCS-20A(DC Plug x8)
    

• 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)