Boss TU-3W Chromatic Tuner Waza Guitar Effect Pedal (TU3W)

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.

• 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

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.

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.

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