TU-3

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TU-3: Chromatic Tuner

The New World-Standard Tuner Has Arrived

Features

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 High-Brightness mode that cuts through the harshest outdoor glare. Choose between Chromatic or Guitar/Bass tuning modes, and enjoy visual pinpoint tuning verification with the Accu-Pitch Sign function. The TU-3 incorporates a convenient Note Name Indicator that can display notes of 7-string guitars and 6-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
  • High-Brightness mode enhances meter visibility outdoors
  • Accurate to +/- one cent
  • Accu-Pitch Sign function provides visual verification when tuning is complete
  • Chromatic and Guitar/Bass mode (tune by string number, with support for 7-string guitars and 6-string basses)
  • Flat tuning is supported with Guitar Flat mode, which allows for “drop” tunings up to six semitones below standard pitch
  • Tuner automatically mutes when the tuner is on
  • Supplies power for up to seven BOSS compact effect pedals (with optional PCS-20A Cable)

The New World-Standard Tuner Has Arrived

Specs

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)
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
Size and Weight
Width
73 mm
2-7/8 inches
Depth
129 mm
5-1/8 inches
Height
59 mm
2-3/8 inches
Weight
390 g
0 lbs. 14 oz.
In the interest of product improvement, the specifications and/or appearance of this unit are subject to change without prior notice.

Accessories

PSA-120S

Power Adapter

PSA-120S

Power Adapter

Click for Details

PCS-20A

Parallel DC Cord

PCS-20A

Power multiple BOSS compact pedals from a single pedal

Click for Details

 

Support

If you have questions about operating your BOSS product, please check our Knowledge Base for answers to the most common questions.

You can also contact our Product Support department by phone or email.

In addition, we have a library of Support Documents that you can download and reference. If Support Documents are available for this product, they will be listed below.

Support Documents

TU-3 Brochure
BOSS Product Catalog 2012
BOSS Product Catalog 2011

Product Manuals

Owner’s Manual: TU-3_OM.pdf