Skip to product information
1 of 2


Boss TU-3 Chromatic Tuner Pedal

Regular price RM439.00 MYR
or up to 3 interest-free payments of RM146.33 MYR with More info
Regular price Sale price RM439.00 MYR
Sale Sold out

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!


  • 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

    Tuning Range
    C0 (16.35 Hz)--C8 (4,186 Hz)
    Reference Pitch
    A4 = 436--445 Hz (1 Hz step)
    Tuning Accuracy
    +/- 1 cent
    Chromatic flat x2
    Guitar flat x2
    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)
    Buffered bypass
    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
    CHECK indicator (Serves also as battery check indicator)
    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.
    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
    73 mm
    2-7/8 inches
    129 mm
    5-1/8 inches
    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.