Boss - 'TU-3W' Chromatic Tuner Guitar Pedal
Boss - 'TU-3W' Chromatic Tuner Guitar Stompbox, Switchable Buffer, Enhanced Waza Craft Version
- By DPD to your specified address. | Free Receive SMS with one-hour delivery window Weekend, timed and European delivery options are available at checkout
- Collect instore Collect from our Bolton store, BL6 6PE | Free
- UPS and DPD Pickup Pickup from local convenience store | £4.79
- SCANPROTECT Protect against installation damage for 28 days. More info
Boss - 'TU-3W' Chromatic Tuner

THE LEADING STOMPBOX TUNER WITH WAZA EXPERTISEThe BOSS TU-3W, BOSS brings Waza Craft expertise to the world’s leading stompbox tuner. At its core, the TU-3W provides rock-solid tuning equivalent to the industry-leading TU-3. In true Waza form, the pedal’s benchmark functionality is enhanced further with BOSS skill and craftsmanship. Pure, uncolored signal transfer is vital for a tuner, and the TU-3W features redesigned circuitry with selectable buffered or true-bypass operation and the most transparent audio pass-through available. Featuring high-end performance for demanding players, the TU-3W delivers a premium pedal experience only available from BOSS.
Amazing Features
• The world’s leading stompbox tuner, enhanced with Waza innovation and craftsmanship
• Refined audio circuitry for exceptionally pure signal pass-through
• Tuning functions are identical to the industry-standard TU-3
• Superior tuning and premium signal buffer in one pedal
The Tech Spec
Features | Specification | Tuning Range | C0 (16.35Hz)–C8 (4186Hz) |
---|---|
Reference Pitch | A4=436–445 Hz (1Hz 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 | Alkaline battery (9V, 6LR61) or Carbon-zinc battery (9V, 6F22) AC adaptor (sold separately) |
Bypass | Buffered bypass or True bypass |
Controls | Pedal switch OUTPUT switch (BUF/THRU SW) 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 DC IN jack DC OUT jack |
Current Draw | 60 mA (DC 9 V) 110 mA (DC 9 V, when High Brightness mode is on) |
Expected battery life under continuous use (These figures will vary depending on the actual conditions of use.) | Alkaline: Approx. 6 hours Carbon: Approx. 0.5 hours |
Accessories | Owner's Manual Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTE," and "Information") Alkaline battery (9V, 6LR61) |
Dimensions | Width: 73 mm Depth: 129 mm Height: 59 mm |
Weight (including battery) | 460 g 1 lb 1 oz |