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!

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 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.