BOSS TU-3W Waza Craft Chromatic Tuner

Product ID: 109620

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  • BOSS' legendary stompbox tuner gets the Waza Craft treatment
  • 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
  • Built like an absolute tank and perfect for touring musicians
  • Powered by AC adaptor or 9V battery for convenience
  • Free 5 year warranty when registered with BOSS


The BOSS TU-3W Waza Craft Chromatic Tuner benefits from the legendary TU-3's tuning abilities, as well as the superior standards of the "Waza" tradition, to create the perfect combination of sophisticated style and unbeatable performance.

Outstanding tuning abilities

Guitarists the world over reach for the BOSS TU-3 as their tuner pedal of choice for a number of reasons: pin-point tuning accuracy; easy to read display; portability; and road-ready rugged construction. The TU-3W features a 21-segment LED display that guarantees exceptionally precise tuning accuracy with an easy to read display.

As with the TU-3 there are Chromatic, Guitar, and Bass modes to meet the tuning demands of a wide range of instruments. The Chromatic mode utilises the on-board 21-segment LED's to guarantee 100% accuracy; whilst the Guitar and Bass modes enables support up to six half-steps (semitones) below standard pitch for "drop" tuning - as well as accurately tuning 7-string guitars and 6-string basses without any fuss.

Buffered and True Bypass options

The redesigned circuitry of the TU-3W offers selectable buffered or true-bypass operation. However, elaborate your pedal arrangement is, pristine signal quality is important for every guitarist, and transparent audio pass-through is assured thanks to the design by the peerless Waza Craft team.

Waza Craft Tradition

In Japan, "Waza" is the term for art and technique, and as part of their Waza Craft series, the illustrious team at BOSS perfect their already exceptional pedals, to deliver premium gear at ludicrously affordable prices. By carefully selected analogue components, refining circuitry and executing meticulous attention to detail, we all benefit from their legendary expertise.

ModelTU-3W Waza Craft Chromatic Tuner
Dimensions (H x W x D) 73 x 59 x 129 mm
Weight (including battery) 460 g
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, 6LR61) or Carbon-zinc battery (9V, 6F22)
AC adaptor (sold separately)
Bypass Buffered bypass or True bypass
Controls Pedal switch
MODE button
Nominal Input Level -20 dBu
Input Impedance1 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
DC IN jack
DC OUT jack
Current Draw 60 mA (DC 9 V)
110 mA (DC 9 V, when High Brightness mode is on)
Expected battery life under continuous use Alkaline: Approx. 6 hours
Carbon: Approx. 0.5 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")
Alkaline battery (9V, 6LR61)
Options (sold separately) AC adaptor: PSA series
Parallel DC cord: PCS-20A (DC Plug x8)

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