Used Boss TU-3S Tuner Pedal

Boss TU-3S Chromatic Tuner Pedal

“Always On, Always Accurate”

A Compact Tuner for Precision in Tight Spaces

The Boss TU-3S is a streamlined version of the industry-standard TU-3, offering the same trusted tuning accuracy in a compact, switchless format. Designed for pedalboards where space is at a premium, the TU-3S is always on and ready to deliver precise chromatic tuning without interrupting your signal flow.

Featuring the same high-visibility LED display and tuning modes as the original TU-3, this pedal is ideal for use with switching systems or setups that demand constant tuning access. Built with Boss’s legendary durability, it’s a reliable tool for guitarists and bassists who prioritize performance and precision.

Highlights

• Compact design saves pedalboard space

• Always-on operation for seamless tuning access

• High-visibility 21-segment LED meter

• Multiple tuning modes including chromatic and guitar/bass

• Built with Boss’s rugged construction for stage reliability

Specifications

• Type: Chromatic tuner pedal

• Display: 21-segment LED meter with Accu-Pitch sign

• Modes: Chromatic, Guitar, Bass, Flat tuning (up to 6 semitones)

• Power: 9V DC (via external power supply)

• Connectivity: ¼" input and output jacks

• Application: Guitar, bass, pedalboard integration

• Origin: Japan

Artists and Use Cases

Trusted by touring musicians and studio players worldwide:

• Ideal for pedalboard setups with switching systems

• Popular among guitarists and bassists for fast, accurate tuning

• Used in live rigs for constant tuning visibility

• A favorite for its compact footprint and professional-grade performance

Ready to Stay in Tune?

The Boss TU-3S delivers precision tuning in a space-saving design built for serious players. Add it to your board and keep your sound dialed in. Buy today!