Boss Guitar Tuner TU-3 (B)

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!

SPECIFICATIONSTuning RangeC0 (16.35 Hz)--C8 (4,186 Hz)Reference PitchA4 = 436--445 Hz (1 Hz step)Tuning Accuracy+/- 1 centModesChromatic
Chromatic flat x2
Guitar
Guitar flat x2
Bass
Bass flat x3Display modeCent mode
Stream modePower SupplyCarbon-zinc battery (9V, 6F22) or Alkaline battery (9V, 6LR61)
AC adaptor (sold separately)BypassBuffered bypassControlsPedal switch
MODE button
STREAM/CENT buttonNominal Input Level-20 dBuInput Impedance1 M ohmNominal Output Level-20 dBuOutput Impedance1 k ohmRecommended Load Impedance10 k ohms or greaterIndicatorCHECK indicator (Serves also as battery check indicator)ConnectorsINPUT jack
OUTPUT jack
BYPASS jack
DC IN jack
DC OUT jackCurrent Draw20 mA (DC 9 V)
80 mA (DC 9 V, when High Brightness mode is on)Expected battery life under continuous useCarbon: Approx. 5 hours
Alkaline: Approx. 21 hours
*These figures will vary depending on the actual conditions of use.AccessoriesLeaflet ("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 WEIGHTWidth73 mm
2-7/8 inchesDepth129 mm
5-1/8 inchesHeight59 mm
2-3/8 inchesWeight (including battery)390 g
14 oz