Boss TU-3S Micro Chromatic Tuner For Pedaboard

World-Standard Performance in a Tiny Footprint

The BOSS TU-3 is the world’s go-to stompbox tuner, trusted by players everywhere for its reliable operation and bulletproof durability. Scaled down in size, the TU-3S gives you the same industry-standard performance in a tiny footprint that saves precious pedalboard space. The display and tuning functions are identical to the TU-3—the only thing eliminated is the pedal switch. Always on and ready to go, the TU-3S is perfect for use with pedal switching systems like the BOSS ES-8 and ES-5, and ideal for any setup where space is at a premium

• Respected TU-3 tuning performance in a more compact size
• 21-segment LED meter with brightness control
• High Brightness mode enhances meter visibility outdoors
• Accu-Pitch Sign function provides visual verification when tuning is complete
• Chromatic and Guitar/Bass modes, with support for 7-string guitars and 6-string basses
• Guitar Flat mode supports “drop” tunings up to six semitones below standard pitch
• Powered by optional PSA-series adapter; DC Out jack for powering up to seven BOSS compact effect pedals via an optional PCS-20A daisy-chain cable
• BOSS five-year warranty

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

    AC adaptor (sold separately)

Current Draw

    35 mA (DC 9 V)

    95 mA (DC 9 V, when High Brightness mode is on)

Bypass

    Buffered bypass

Controls

    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 (Power on indicator)

Connectors

    INPUT jack

    OUTPUT jack

    DC IN jack

    DC OUT jack

Accessories

    Owner's Manual

    Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTE," and "Information")

    Parallel DC code (DC Plug x2)

    Rubber foot 

Options (sold separately)

    AC adaptor: PSA series

    Parallel DC cord: PCS-20A (DC Plug x8)

Size and Weight

Width

    73 mm

    2-7/8 inches

Depth

    84 mm

    3-5/16 inches

Height

    56 mm

    2-1/4 inches

Weight (including battery)

    220 g

    8 oz