Boss TU-3 Chromatic Tuner Pedal TU3
Product Information
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!
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
Specifications
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)
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)
