Boss TU-3 TECHNICAL DATA

TU-3

TU-3

Chromatic Tuner

The New World-Standard Tuner Has Arrived

The world’s top-selling stage tuner, the BOSS TU-2,
evolves and improves with the debut of the new TU-3.
Housed in a tank-tough BOSS stompbox body, the TU-3
features a smooth 21-segment LED meter with a High­Brightness mode that cuts through the harshest outdoor
glare. Choose between Chromatic or Guitar/Bass tuning
modes, and enjoy visual pinpoint tuning verification with
Accu-Pitch®. The TU-3 incorporates a convenient Note
Name Indicator that can display notes of seven-string
guitars and six-string basses, while the Flat-Tuning mode
can support up to six half-steps. It’s the new-standard
tuner that no guitarist or bass player should be without!

®

21-segment LED meter with brightness control

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High-Brightness mode enhances meter visibility

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outdoors

Accurate to +/- one cent

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Accu-Pitch® provides visual verification when

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tuning is complete

Chromatic and Guitar/Bass mode (tune by string

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number, with support for seven-string guitars and
six-string basses)

■ Tuning Range C0 (16.35Hz)–C8 (4186Hz) ■ Reference Pitch A4=436–445 Hz (1Hz step) ■ Tuning
Accuracy ±1 cent ■ Power Supply DC 9 V: Dry battery 6F22 (9 V) type (carbon), Dry battery 6LR61 (9 V)

type (alkaline), AC Adaptor (PSA-Series: optional) ■ Current Draw 30 mA (DC 9 V), 85 mA (DC 9 V,
when High Brightness mode is on) ■ Dimensions 73 (W) x 129 (D) x 59 (H) mm/ 2-7/8 (W) x 5-1/8 (D) x

TU-3 Specifications

Flat tuning is supported with Guitar Flat mode,

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which allows for “drop” tunings up to six
semitones below standard pitch

Tuner automatically mutes when the tuner is on

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Supplies power for up to seven BOSS compact

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effect pedals (with optional PCS-20A Cable)

2-3/8 (H) inches ■ Weight 390 g / 14 oz (including battery) ■ AccessoriesOwner’s Manual, Leaflet
(“USING THE UNIT SAFELY,” “IMPORTANT NOTES,” and “Information”), Dry battery/9 V type (6F22)

■ Options AC adaptor: PSA-Series, Parallel DC cord: PCS-20A

* The specifications are subject to change without notice.

* 0 dBu = 0.775 Vrms

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