Boss TU-3 Chromatic Tuner

- Owner's Manual
- Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTE," and "Information")
- Carbon-zinc battery (9V, 6F22)

- 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

- Weight: 0.430kg
- Height: 150mm
- Width: 92mm
- Depth: 65mm

Manufacturer Warranty (5 years) : Gültig nachdem Garantieschein eingeschickt wurde.

- 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.
Options (sold separately):
AC adaptor: PSA series
Parallel DC cord: PCS-20A(DC Plug x8)