The BOSS TU-15 Chromatic Tuner gives guitarists the most accurate tuning possible—bolstered by new Accu-Pitch and Octave Adjust functions—plus popular Drop D, open and flat tunings. A backlit needle and LCD make tuning easy, while improved high-impedance inputs let you connect between an amp and guitar without signal loss.
Accu-Pitch verifies intonation by sounding a note when correct tuning is reached
Versatile modes: Drop D, Open D/E/G/A, DADGAD and flat tunings up to 5 semitones
World’s first Octave Adjust function simplifies tuning using open string and 12th fret
High impedance input keeps tuner transparent when connected between guitar and amp
Backlit needle and LCD let guitarists tune up anywhere
Dry Battery [R6/LR6 (AA) type] x 2; DC3V, AC Adaptor DC9V (PSA series; optional)
15 mA (backlit off and SOUND mode off), 55 mA (backlit on and SOUND mode on) * Expected battery life under continuous use (Carbon): Approximately 45 hours (backlit off, SOUND mode off and A4 continuous input), Approximately 15 hours (backlit on and SOUND mode on) *These figures will vary depending on the actual conditions of use.
Dry Battery [R6 (AA) Type] x 2, Owner's Manual
AC Adaptor (PSA series)
Size and Weight
149 mm5-7/8 inches
58 mm2-5/16 inches
40 mm1-5/8 inches
190 g0 lbs. 7 oz.
*The specifications are subject to change without notice.
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