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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 ChromaticChromatic flat x2GuitarGuitar flat x2BassBass flat x3 Display mode Cent modeStream 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 buttonSTREAM/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 jackOUTPUT jackDC IN jackDC OUT jack Accessories Owner's ManualLeaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTE," and "Information")Parallel DC code (DC Plug x2)Rubber foot  



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