TU-3W Chromatic Tuner

The world’s leading stompbox tuner, enhanced with Waza innovation and craftsmanship.

The Leading Stompbox Tuner, Refined with Waza Expertise

With the TU-3W, BOSS brings Waza Craft mojo to the world’s leading stompbox tuner. At its core, the TU-3W provides rock-solid tuning equivalent to the industry-standard TU-3. In true Waza tradition, the pedal’s benchmark functionality is further enhanced with BOSS skill and craftsmanship. Pure, uncolored signal transfer is essential for a tuner, and the TU-3W features redesigned circuitry with selectable buffered or true-bypass operation and the most transparent audio pass-through possible. Packing high-end performance for discriminating players, the TU-3W delivers a premium pedal experience only available from BOSS.

  • The world’s leading stompbox tuner, enhanced with Waza innovation and craftsmanship
  • Superior tuning and premium signal buffer in one pedal
  • Tuning functions are identical to the industry-standard TU-3
  • Refined audio circuitry for exceptionally pure signal pass-through
  • Buffer can be turned off for true-bypass operation
  • Made in Japan
  • BOSS five-year warranty
  • Waza Craft: The Art of Superior Tone

    Since the beginning, the engineers at BOSS have been committed to achieving the finest guitar tones using any technology necessary, from old-school analog circuits to high-tech DSP. Continuing this enthusiastic spirit, we are pleased to introduce the Waza Craft series. In Japan, “Waza” is the term for art and technique, and these special edition pedals proudly carry the Waza symbol to represent the pinnacle of BOSS design and craftsmanship. Being made in Japan, the Waza Craft series brings you exceptional tone and touch response through carefully selected analog components, refined circuitry, and meticulous attention to detail.

  • 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
    Alkaline battery (9V, 6F22) or Carbon-zinc battery (9V, 6LR61)
    AC adaptor (sold separately)
    Bypass
    Buffered bypass or True bypass
    Controls
    Pedal switch
    OUTPUT switch (BUF/THRU SW)
    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: 1/4-inch phone type
    OUTPUT jack: 1/4-inch phone type
    BYPASS jack: 1/4-inch phone type
    DC IN jack
    DC OUT jack
    Current Draw
    50 mA (DC 9 V)
    110 mA (DC 9 V, when High Brightness mode is on)
    Expected battery life under continuous use (These figures will vary depending on the actual conditions of use.)
    Alkaline: Approx. 5.5 hours
    Carbon: Approx. 0.5 hours
    Accessories
    Leaflet (“USING THE UNIT SAFELY,” “IMPORTANT NOTE,” and “Information”)
    Alkaline battery (9V, 6LR61)
    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)
    460 g
    1 lb 1 oz
    * 0 dBu = 0.775 Vrms
    * The specifications are subject to change without notice.

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