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!

Specs:

• Tuning Range: C0 (16.35 Hz)--C8 (4,186 Hz)
• Reference PitchA4 = 436--445 Hz (1 Hz step)
• Tuning Accuracy+/- 1 cent
• Memory: 198 (99 banks x 2 [A] [B]), 297 (99 banks x 3 [A] [B] [C])
• Nominal Input Level: -20dBu
• Input Impedance: 1M 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)
• Bypass: Buffered bypass
• Controls:
  • Chromatic
  • Chromatic flat x2
  • Guitar
  • Guitar flat x2
  • Bass
  • Bass flat x3
• Display:
  • Cent mode
  • Stream mode
• Connectors :
  • INPUT jack
  • OUTPUT jack
  • BYPASS jack
  • DC IN jack
  • DC OUT jack
• Power Supply:
  • Carbon-zinc battery (9V, 6F22) or Alkaline battery (9V, 6LR61)
  • AC adaptor (sold separately)
• 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)
• 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

* 0 dBu = 0.775 Vrms
*The specifications are subject to change without notice.