The Boss TU-3 is one of those pedals that has become almost standard equipment on pedalboards for a reason. Simple, accurate and built in the familiar Boss compact enclosure, it takes the basic formula of the earlier TU-2 and improves the display and tuning accuracy while keeping everything straightforward to use on stage.

The bright 21 segment LED meter is easy to read in different lighting conditions, with High Brightness mode available for outdoor gigs. It supports chromatic and guitar/bass tuning, including flat tuning, while Accu-Pitch provides a visual confirmation once the note is in tune. Engaging the tuner also mutes the output, making it useful for silent tuning between songs.

As with most Boss pedals, the TU-3 can run from a standard 9V centre negative power supply or a 9V battery. It also features a DC output, allowing the tuner to distribute power to additional pedals when used with the appropriate daisy chain cable. This example is sold without its original box.

Specifications:

Model: Boss TU-3

Type: Chromatic Tuner

Tuning Range: C0 (16.35 Hz) to C8 (4,186 Hz)

Reference Pitch: A4 = 436 to 445 Hz

Tuning Accuracy: ±1 Cent

Display: 21 Segment LED Meter

Modes: Chromatic, Guitar and Bass

Flat Tuning: Up to 6 Semitones

High Brightness Mode: Yes

Accu-Pitch: Yes

Input: 1/4"

Outputs: 1/4" Output and Bypass

DC Output: 9V DC

Power: 9V DC Centre Negative or 9V Battery

Current Draw: 30mA

Dimensions: 73mm W x 129mm D x 59mm H (2.87" x 5.08" x 2.32")

Original Box: Not Included

Made in: Taiwan