Gear article
Boss TU-3W Waza Craft Chromatic Tuner
The Boss TU-3W Waza Craft Chromatic Tuner is a premium version of the industry-standard floor-based tuner pedal, designed for high-end signal fidelity. Built by the Waza Craft custom division, it offers guitarists and bassists professional-grade tuning accuracy combined with a refined audio circuit for transparent signal transfer.

Overview
The Boss TU-3W represents an evolution of the world's most popular tuner pedal, the TU-3. As part of the Waza Craft series, this model is engineered with premium components to address the needs of professional musicians who require absolute signal integrity. It functions as both a high-precision chromatic tuner and a signal management tool for pedalboards.
Key Features and Design
The TU-3W maintains the classic Boss enclosure while introducing significant internal upgrades.
- LED Display: Features a high-visibility interface that remains legible in varied lighting conditions, from dark stages to bright outdoor venues.
- Versatile Tuning: Supports chromatic tuning as well as specialised modes for guitar and bass, accommodating drop tunings and multi-string instruments.
- Premium Build: Incorporates Waza Craft craftsmanship, ensuring a robust build quality designed for heavy touring use.

Signal Integrity and Operation
A primary distinction of the TU-3W is its audio circuitry. Unlike standard tuners that may introduce slight coloration to the tone, the Waza Craft version is designed for pure signal transfer. It allows users to choose between a high-end buffer, which preserves signal strength over long cable runs, or a true-bypass mode for those who prefer a direct connection when the pedal is inactive.
Comparison to Alternatives
When compared to standard entry-level options like the Behringer TU300 or Korg GA-2, the TU-3W offers superior durability and signal transparency. While clip-on options such as the Boss TU-05 or Korg GripTune provide convenience and portability, the TU-3W is preferred for professional pedalboard setups where floor-based control and power distribution are required. Its price point reflects the premium electronics compared to standard utilitarian metronomes or tuners.
Related gear
£21.80 ($28)Boss
Boss TU-05 Rechargeable Clip-on Guitar Tuner
£9.99 ($13)Tuner Fish
Tuner Fish Lug Locks Orange 8 Pack
£229.00 ($291)Wittner
Wittner W801 Wooden Metronome Mahogany
£5.99 ($8)Tuner Fish
Tuner Fish Lug Locks Red 4 Pack
£15.50 ($20)Korg
Korg GripTune Clip-On Tuner
£12.50 ($16)Korg
Korg GA-2 Guitar/Bass Tuner
£24.99 ($32)Gear4Music
Mechanical Metronome with Thermo-Hygrometer by Gear4music
£26.00 ($33)Behringer
Behringer TU300 Chromatic Tuner
Frequently asked questions
- What is the primary benefit of the Waza Craft version over the standard TU-3?
- The Waza Craft version features premium circuitry for natural, pure signal transfer. It also includes the option to switch between a high-quality buffer and true bypass operation, which is not available on the standard model.
- Can the TU-3W be used for bass guitars?
- Yes, the TU-3W is fully compatible with both guitars and bass guitars. It is designed to track low frequencies accurately, making it suitable for 4, 5, and 6-string bass setups.
- Does the TU-3W support drop tunings?
- Yes, it supports various tuning modes, allowing players to access any tuning imaginable with pinpoint accuracy. This includes standard, flat, and dropped configurations for modern musical styles.
- What kind of display does the TU-3W use?
- The pedal features a high-brightness LED display. This ensures that the tuning indicators are visible regardless of ambient noise or lighting conditions on stage.
- Does the pedal offer true bypass?
- Yes, the TU-3W allows the user to select between a premium buffered bypass and true bypass. This flexibility allows it to fit into various signal chain philosophies.
- What is the typical price for a Boss TU-3W?
- The typical price range for this premium tuner is approximately GBP 152. This reflects its status as a high-end, Japanese-engineered Waza Craft product.
- Is the TU-3W rechargeable like the TU-05?
- No, the TU-3W is a traditional pedalboard unit typically powered by a 9V battery or an external power supply. It does not feature the internal rechargeable battery found in clip-on models like the TU-05.
- How does the TU-3W handle signal noise?
- The Waza Craft craftsmanship focus ensures a natural and pure signal transfer. By using high-quality components, it minimizes noise and interference compared to budget tuner alternatives.
- Can I power other pedals using the TU-3W?
- Like the standard TU-3, the TU-3W typically includes a DC output. This allows it to distribute power to other pedals on your board when used with a daisy chain cable and a sufficient power supply.
- What distinguishes the TU-3W from the Korg GA-2?
- The Korg GA-2 is a handheld, battery-operated utility tuner, whereas the TU-3W is a professional-grade floor pedal. The Boss unit offers much higher durability, bypass options, and signal management features for live performance.
- Is the TU-3W suitable for outdoor performances?
- Yes, the high-brightness LED display is specifically designed to be legible in difficult lighting. This makes it an excellent choice for outdoor stages where sunlight might wash out standard LCD screens.
- Why would a guitarist choose this over the Behringer TU300?
- A guitarist would choose the TU-3W for its superior build quality, premium buffer/bypass options, and higher accuracy. While the TU300 is a budget-friendly alternative, the TU-3W is built for professional longevity and tonal purity.
