BOSS TU-3S Chromatic Tuner effects pedal

Official product image

Image: BOSS / Roland Corporation · Source

BOSS

TU-3S Chromatic Tuner

TunerCurrent

Pedalboard-friendly TU-3 tuner without a footswitch.

Quick specs

Power
9 V
Current draw
30 mA
Bypass
Buffered
Inputs
1× 1/4-inch phone Mono
Outputs
1× 1/4-inch phone Mono

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Controls

  • MODE

  • STREAM/CENT

Power requirements

Voltage
9 V
Power type
DC
Current draw
30 mA
Battery operation
No

Dimensions & weight

Connections

Inputs
1× 1/4-inch phone Mono
Outputs
1× 1/4-inch phone Mono
INPUT 1/4-inch
Present
OUTPUT 1/4-inch
Present
DC IN
Present
DC OUT
Present

Features

Bypass
Buffered
Signal path
Analog
MIDI
No
Expression
No
Tap tempo
No
Footswitches
1
USB
No
Bluetooth
No
SKU
TU-3S
Version
Current production

Documentation

Manufacturer page
Visit
Manual
Download
Specs verified
2026-09-22

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