BOSS TU-3 Chromatic Tuner
- Sharp 21-segment LED meter with brightness control
- High Brightness mode enhances meter visibility when playing outdoors
- Accurate to +/- one cent
- Accu-Pitch Sign function provides visual verification when tuning is complete
- Chromatic mode for tuning to any pitch
- Guitar and Bass modes for tuning by string number, with support for 7-string guitars and 5- and 6-string basses
- Flat tuning options support down tuning up to six semitones below standard pitch (Guitar mode) and three semitones below (Bass mode)
- The output automatically mutes when the tuner is engaged, allowing for silent tuning on stage
- DC output jack for distributing power to other pedals (requires optional PSA-series adaptor and PCS-20A parallel cable)
- 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
- 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.
