BOSS TU-3 Chromatic Tuner Pedal

BOSS TU-3 Chromatic Tuner The World’s Best-Selling Stage Tuner The BOSS TU-3 Chromatic Tuner sets the standard for stage tuning reliability. Built on decades of BOSS tuning technology, it combines a sharp 21-segment LED meter, pinpoint /-1 cent accuracy, and a road-tested all-metal chassis into the most trusted compact tuner pedal on the market. The TU-3 covers an extraordinary tuning range from C0 to C8, supports 7-string guitars and 5-6 string basses, and offers multiple flat-tuning options for down-tuned playing styles. The High Brightness mode ensures clear readability under direct sunlight, while the Accu-Pitch Sign function provides an unmistakable visual confirmation the moment your instrument is perfectly in tune. A built-in DC OUT jack lets the TU-3 serve double duty as a power supply for other pedals on your board. With buffered bypass to preserve signal integrity and compatibility with the full BOSS PSA adapter family, the TU-3 is an essential, always-on foundation for any pedalboard. Key Features /-1 Cent Accuracy: High-precision tuning detection ensures you’re always spot-on, whether on stage or in the studio. 21-Segment LED Meter with High Brightness Mode: Crystal-clear readability even in direct outdoor sunlight; brightness is user-adjustable. Accu-Pitch Sign Function: The entire meter flashes when tuning is confirmed, giving instant visual feedback without staring at the center needle. Wide Tuning Range (C0-C8): Covers everything from the lowest bass frequencies to the highest guitar harmonics across all standard and extended-range instruments. Multiple Modes for Guitar and Bass: Chromatic, Guitar (with up to 6-semitone flat), and Bass (with up to 3-semitone flat) modes support 7-string guitars and 5-6 string basses. DC OUT Jack for Daisy-Chaining: Powers additional pedals directly from the TU-3, reducing the need for separate power supplies. Silent Muting on Engagement: Engage the tuner for completely silent tuning between songs. Buffered Bypass: Maintains signal strength across long cable runs. Technical Specifications Tuning Range: C0 (16.35 Hz) – C8 (4,186 Hz) Reference Pitch: A4 = 436-445 Hz (1 Hz steps) Tuning Accuracy: /-1 cent Tuning Modes: Chromatic, Chromatic flat x2, Guitar, Guitar flat x2, Bass, Bass flat x3 Display Modes: Cent mode, Stream mode Nominal Input Level: -20 dBu Input Impedance: 1 M Nominal Output Level: -20 dBu Output Impedance: 1 k Recommended Load Impedance: 10 k or greater Controls: Pedal switch, MODE button, STREAM/CENT button Indicators: 21-segment LED meter, CHECK indicator (battery check function) Connectors: INPUT jack (1/4″ TS), OUTPUT jack (1/4″ TS), BYPASS jack (1/4″ TS), DC IN jack, DC OUT jack Power Supply: Carbon-zinc battery (9V, 6F22) or Alkaline battery (9V, 6LR61); AC adaptor PSA series (sold separately) Current Draw: 20 mA (standard); 80 mA (High Brightness mode) Battery Life (Carbon-Zinc): Approximately 5 hours Battery Life (Alkaline): Approximately 21 hours Bypass Type: Buffered bypass Width: 73 mm (2-7/8 inches) Depth: 129 mm (5-1/8 inches) Height: 59 mm (2-3/8 inches) Weight: 390 g / 14 oz (including battery) What’s In The Box BOSS TU-3 Chromatic Tuner Carbon-zinc 9V battery (6F22) Leaflet “USING THE UNIT SAFELY” Information sheet Reviews There are no reviews yet. Be the first to review “BOSS TU-3 Chromatic Tuner Pedal” Cancel replyYour email address will not be published. Required fields are marked *Your rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment.