Specifications - Boss TU-2 Chromatic Tuner Owner's Manual

Specifications

TU-2: Chromatic Tuner
Reference Pitch .......... A4 = 438 to 445 Hz (1 Hz step)
Tuning Range ............. C0 (16.35 Hz) to C8 (4186 Hz)
Tuning Accuracy ........ +/-3 cents
Input Impedance ........ 1 MΩ
Controls ..................... STREAM/CENT select switch, MODE select switch, Pedal switch
Indicators ................... Meter, Note name/String number indicator, Tuning guide indicators,
Connectors ................ Input jack, Output jack, Bypass jack, DC 9V In jack, DC 9V Out jack
Power Supply ............. DC 9V: Dry battery (6F22/9V), AC Adaptor (PSA-Series: Optional)
Current Draw ............. 55 mA (Max.)
26
Check indicator
* Expected battery life under continuous use:
Carbon: 1.5 hours (When the tuner is continuously on)
6 hours
Alkaline: 6 hours
These figures will vary depending on the actual conditions of use.
(When the tuner is on for one minute and off
for three minutes)
(When the tuner is continuously on)