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