Batteries or an external power supply is required but not included with this item. Please be sure to purchase batteries or an external power supply that suits your needs.
The TU-3 Chromatic Tuner from Boss is a stompbox-style instrument tuner that runs on a 9 volt battery or from AC power. You can plug in any type of guitar or bass and have its output plugged into an amplifier or another pedal. It offers precise and quick tuning with its 21-segment LED meter and note display.
For over a decade, the Boss TU-2 was one of the most popular tuners in the world. The TU-3 carries on the tradition, and adds many useful features that make it even easier to use. With the push of a button you can change the TU-3's operational mode to handle flat tuning guitars, 6 string basses, and more. The brightness of its LEDs can be changed to be seen in direct sunlight.
There are two separate outputs on the TU-3. One mutes the signal so no sound gets outputted when tuning. The other output doesn't mute the signal. Both outputs can be used at the same time, allowing you to pass the instrument's signal to more than one source. The TU-3 also features a DC output jack that enables you to power up to 6 other Boss pedals when using the separately available PCS-20A power cable.
| Pitch Calibration Range | C0 (16.35Hz) to C8 (4186Hz) |
| Reference | A4 = 436 to 445Hz (1Hz step) |
| Accuracy | ±1cent |
| Connectors |
1 x 1/4" Instrument Input 2 x 1/4" Outputs 1 x DC In 1 x DC Out |
| Hard Disk Space | DC 9 V Dry Battery, AC Adaptor (PSA-Series: Optional) |
| Dimensions (WxDxH) | 2.9 x 5.12 x 2.4" (73 x 129 x 59mm) |
| Weight | 14 oz (390 g) |
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Comments about Boss TU-3 Chromatic Tuner Pedal:
This is a nice tuner pedal. My son owns one and I'm about to buy one but the review above stating this is a true bypass pedal is completely wrong. Like all other Boss pedals this has a FET buffer. Both the switched "OUTPUT" and the "BYPASS" output jacks are buffered. As can easily be seen by removing the battery or 9VDC supply power. If the pedal was not buffered it would continue to pass signal on the "BYPASS" jack without being powered--it does not.
Pros
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Comments about Boss TU-3 Chromatic Tuner Pedal:
Bottom line: This is all you need in a tuner and why nearly every gigging guitarist has one on his board. The LEDs make 100% accurate tuning a no brainer. Plus, it's true bypass and built like a tank.
Pros
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Comments about Boss TU-3 Chromatic Tuner Pedal:
toughest stompbox tuner on the market
Pros
Cons
Best Uses
Comments about Boss TU-3 Chromatic Tuner Pedal:
Every guitar and bass player should own this tuner.
Displaying reviews 1-4