Boss TU-3 Chromatic Tuner Pedal

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!

Features

• 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)
• 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: 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: Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTE," and "Information"), Carbon-zinc battery (9V, 6F22)