Boss TU-3 – Chromatic Tuner Pedal

Boss TU-3 – Chromatic Tuner Pedal for Guitar and Bass

The Boss TU-3 is one of the most widely used tuner pedals on professional pedalboards. It offers precise chromatic tuning for guitar and bass with a bright 21-segment LED meter that remains visible under stage lighting. The TU-3 supports standard tuning, flat tunings, and drop tunings, making it suitable for a wide range of styles.

The pedal includes a mute function when engaged, allowing silent tuning during live sets. It uses a buffered bypass output, helping to maintain signal strength across long cable runs and larger pedalboards. Built in the classic Boss compact enclosure, the TU-3 is designed to withstand heavy, everyday use.

A dedicated power output allows the TU-3 to power other compact pedals (with the appropriate daisy-chain cable and sufficient power supply), making it a practical hub for smaller boards.

• Chromatic tuner for guitar and bass

• Bright 21-segment LED meter with High-Brightness mode

• Supports standard, flat, and drop tunings

• Mute function for silent tuning

• Buffered bypass to help preserve signal

• Rugged Boss compact pedal housing

The Boss TU-3 is a dependable, accurate, and long-lasting tuning solution for any guitarist or bassist who needs a reliable pedalboard tuner for stage or studio.