TU-3

Chromatic Tuner

TU-3
Where to Buy

The New World-Standard Tuner Has Arrived

The world’s top-selling stage tuner, the BOSS TU-2, evolves and improves with the debut of the new TU-3. Housed in a tank-tough BOSS stompbox body, the TU-3 features a smooth 21-segment LED meter with a High-Brightness mode that cuts through the harshest outdoor glare. Choose between Chromatic or Guitar/Bass tuning modes, and enjoy visual pinpoint tuning verification with the Accu-Pitch Sign function. The TU-3 incorporates a convenient Note Name Indicator that can display notes of 7-string guitars and 6-string basses, while the Flat-Tuning mode can support up to six half-steps. It’s the new-standard tuner that no guitarist or bass player should be without!

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
Carbon-zinc battery (9V, 6F22) or Alkaline battery (9V, 6LR61)
AC adaptor (sold separately)
Bypass
Buffered bypass
Controls
Pedal switch
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 (Serves also as battery check indicator)
Connectors
INPUT jack
OUTPUT jack
BYPASS jack
DC IN jack
DC OUT jack
Current Draw
30 mA (DC 9 V)
85 mA (DC 9 V, when High Brightness mode is on)
Expected battery life under continuous use
Carbon: Approx. 12.0 hours
Alkaline: Approx. 23.5 hours
*These figures will vary depending on the actual conditions of use.
Accessories
Owner's Manual
Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTE," and "Information")
Carbon-zinc battery (9V, 6F22)
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
129 mm
5-1/8 inches
Height
59 mm
2-3/8 inches
Weight (including battery)
390 g
14 oz
* 0 dBu = 0.775 Vrms
*The specifications are subject to change without notice.
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