BOSS TU-3S Chromatic Tuner

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)
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: 1/4-inch phone type

• OUTPUT jack: 1/4-inch phone type

• DC IN jack

• DC OUT jack

Current Draw: 30 mA (DC 9 V), 85 mA (DC 9 V, when High Brightness mode is on)
Accessories:

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

• Parallel DC cord (DC Plug x2)

• Rubber foot

Options (sold separately):

• AC adaptor: PSA series

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

Dimensions
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

* 0 dBu = 0.775 Vrms
*The specifications are subject to change without notice.