TU-3 Pedal Chromatic Tuner BOSS

TU-3 Pedal Chromatic Tuner BOSS

Tax included

The Boss TU-3 Chromatic Tuner is a popular choice for professional, gigging musicians. Equipped with a 21-segment LED meter, the TU-3 offers perfect visibility even in poor lighting.

 ✓ The Industry Standard Pedal Tuner

 ✓ Mutes Output for Silent Tuning

 ✓ 21-Segment LED Meter With Brightness Control

 ✓ High-Brightness Mode Enhances Meter Visibility Outdoors

 ✓ Supplies Power For Up To 7 Boss Compact Effects Pedals



B Sharp Music Instruments Store is a SAFE & SSL certified online shop.


We deliver to Ireland, Northern Ireland ! All Orders Flat Delivery Charges: €3

  PAY by CARD or PayPal

Credit card payments are securely processed by STRIPE.

Chromatic Tuner Guitar Pedal BOSS TU-3


The world’s top-selling stage tuner BOSS TU-2 pedal evolves and improves with the debut of the new TU-3.

Housed in a tank-tough BOSS stompbox body, the TU-3 guitar pedal features a smooth 21-segment LED meter with a High-Brightness mode that cuts through the harshest outdoor glare.

You can choose between Chromatic or Guitar / Bass tuning modes and enjoy visual pinpoint tuning verification with the Accu-Pitch Sign function.

Guitar tuner pedal 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.

BOSS TU-3 is the new-standard tuner that no guitarist or bass player should be without!


TU-3 Chromatic Tuner Features:

  • 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
  • BOSS five-year warranty


Boss TU-3 Pedal Tuner Specifications:

  • Tuning Range: C0 (16.35 Hz)--C8 (4,186 Hz)
  • Reference Pitch: A4 = 436--445 Hz (1 Hz step)
  • Tuning Accuracy: +/- 1 cent
  • Modes:
    • Chromatic
    • Chromatic flat x2
    • Guitar
    • Guitar flat x2
    • Bass
    • Bass flat x3
  • Display mode:
    • Cent mode
    • Stream mode
  • Power Supply:
    • Carbon-zinc battery (9V, 6F22) or Alkaline battery (9V, 6LR61)
    • AC adaptor (sold separately)
  • Bypass: Buffered bypass
  • Controls:
    • Pedal switch
    • MODE button
    • STREAM/CENT button
  • Nominal Input Level: -20 dBu
  • Input Impedance: 1 M ohm
  • Nominal Output Level: -20 dBu
  • Output Impedance: 1 k ohm
  • Recommended Load Impedance: 10 k ohms or greater
  • Indicator: CHECK indicator (Serves also as battery check indicator)
  • Connectors:
    • INPUT jack
    • OUTPUT jack
    • BYPASS jack
    • DC IN jack
    • DC OUT jack
  • Current Draw:
    • 30 mA (DC 9 V)
    • 85 mA (DC 9 V, when High Brightness mode is on)
  • Expected battery life under continuous use:
    • Carbon: Approx. 12.0 hours
    • Alkaline: Approx. 23.5 hours - *These figures will vary depending on the actual conditions of use.
  • Accessories:
    • Owner's Manual
    • Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTE," and "Information")
    • Carbon-zinc battery (9V, 6F22)
4 Items
New product
Comments (0)