TU-3WChromatic Tuner

TU-3W
Where to Buy

The Leading Stompbox Tuner, Refined with Waza Expertise

The TU-3W brings Waza Craft mojo to the world’s leading stompbox tuner platform. This high-performance pedal combines the trusted tuning features of the TU-3 with selectable buffered/true bypass operation and refined circuitry for the most transparent audio pass-through possible. Built for discriminating players, the TU-3W delivers a premium pedal experience only available from BOSS.

Features

  • Gold standard pedal tuner enhanced with Waza craftsmanship
  • Refined buffer circuitry for exceptionally pure signal pass-through
  • Buffer can be turned off for true-bypass operation
  • Sharp 21-segment LED meter with brightness control
  • High Brightness mode enhances meter visibility when playing outdoors
  • Accurate to +/- one cent
  • Accu-Pitch Sign function provides visual verification when tuning is complete
  • Chromatic mode for tuning to any pitch
  • Guitar and Bass modes for tuning by string number, with support for 7-string guitars and 5- and 6-string basses
  • Flat tuning options support down tuning up to six semitones below standard pitch (Guitar mode) and three semitones below (Bass mode)
  • The output automatically mutes when the tuner is engaged, allowing for silent tuning on stage
  • Bypass output jack for use as an unmuted output and signal splitter
  • DC output jack for distributing power to other pedals (requires optional PSA-series adaptor and PCS-20A parallel cable)
  • Made in Japan
  • BOSS five-year warranty
TU-3W

The Benchmark Tuner, Enhanced

Made in Japan, the TU-3W is the ultimate stompbox tuner for professional players and pedal enthusiasts. At its core, it preserves the high-accuracy tuning performance and extended functions that have made the BOSS TU series a worldwide standard for decades. This special model also includes enhanced buffer circuitry to drive your entire rig with strong signal conditioning and ultra-clear sound. When using wah, fuzz, and other pedals that can be sensitive to signal buffering, it’s easy to disable the buffer via a rear-panel switch.

TU-3W

Extended Functionality

The TU-3W offers many convenient features to elevate your tuning experience. Our innovative Accu-Pitch Sign function speeds operation on stage by displaying a bright streaming indicator when you’ve reached your target. High Brightness mode boosts meter visibility, ensuring easy reading outdoors and in bright environments. And when powering the TU-3W with a PSA-series adaptor,* you can use a PCS-20A parallel cable* to distribute power to other pedals on your board.

*Not included.

TU-3W

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. This enthusiastic spirit continues with the Waza Craft series, bringing you exceptional tone and touch response through carefully selected analog components, refined circuitry, and meticulous attention to detail. 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.

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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Downloads

Support

If you have questions about operating your Roland product, please check our Knowledge Base for answers to the most common questions.
You can also contact our Product Support department by email.
In addition, we have a library of Owner’s Manuals and Support Documents that you can download and reference.

Owner’s Manuals