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🎸 Tune like a pro, perform like a legend.
The BOSS TU-3 Chromatic Stompbox Tuner is the world’s top-selling stage tuner, delivering ultra-precise tuning with ±1 cent accuracy. Its rugged stompbox design features a high-brightness 21-segment LED meter for unbeatable visibility in any lighting condition. Supporting chromatic, guitar, bass, and flat tuning modes—including extended range instruments—the TU-3 mutes automatically during tuning and powers up to seven BOSS pedals. Trusted by professionals worldwide, it comes backed by a 5-year warranty for long-term gig-ready reliability.








| ASIN | B004D8KX7K |
| Amperage | 85 Milliamps |
| Audio Output Effects | Distortion, Chorus |
| Best Sellers Rank | 447 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 13 in Tuners |
| Brand | BOSS |
| Brand Name | BOSS |
| Colour | White |
| Connector Type | USB |
| Controls Type | Knob |
| Country of Origin | Malaysia |
| Customer Reviews | 4.8 out of 5 stars 2,429 Reviews |
| Global Trade Identification Number | 00700315930183, 00761294409664, 04957054409661 |
| Hardware Interface | USB |
| Included Components | Todo |
| Item Dimensions | 10.2 x 7.6 x 15.2 centimetres |
| Item Dimensions L x W x H | 25.4L x 10.2W x 25.4H centimetres |
| Item Part Number | TU-3 |
| Item Type Name | TU-3 |
| Item Weight | 390 Grams |
| Item weight | 390 Grams |
| Manufacturer | Roland |
| Manufacturer Part Number | TU-3 |
| Model Name | TU-3 |
| Model Number | TU3 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Power Source | Battery Powered |
| Product Warranty | 5 year. |
| Product dimensions | 25.4L x 10.2W x 25.4H centimetres |
| Set Name | Single |
| Signal Format | Analog |
| Style | TU-30 |
| UPC | 700315930183 065491929964 270050113276 761294409664 714573528174 411378170163 714573526569 600599646742 602003603693 783627010866 |
| Unit Count | 1 count |
| Voltage | 9 Volts |
D**R
Excellent BOSS TU- 3 Tuner Pedal
Excellent tuner pedal! The BOSS TU-3 is incredibly accurate, fast, and easy to use. The display is bright and clear, making it simple to tune even on dark stages or in bright daylight. It's built like a tank, as you'd expect from BOSS, and feels very reliable for regular gigging and practice. The mute function is a great bonus for silent tuning between songs. Overall, a high-quality tuner that does exactly what it promises. Highly recommended! 5 STAR from me!
S**R
Top quality product
There's reason this is talked about as being one of the best in the market, and that's because it does everything it claims to. In terms of the basics, it tunes my 5 string bass (with bottom B) to a high degree of accuracy, and I love the feedback given by the LED display. I haven't tried it out in bright conditions yet, but I expect I won't have too much of an issue with visibility. I've not tried all the options yet, but having previously owned a TU-2, it seems like there's probably more than I currently need and I like that. The main ones are easy to find and use. The stomp box feels like good quality, I'm not afraid of breaking it, and the size means it fits snugly in my guitar case. Overall a good buy and I'm looking forward to not needing to buy another for years yet.
A**S
Old School Quality
Accurate and easy to read, this Tuner has been around for ever. Some subtle changes over the decades to improve it slightly but I regard these units as lifetime purchases. Buy one and it's the only one you will ever need. So easy to use. Good and bright for dark stages and it cuts your signal to enable background tuning. This also invaluable when switching guitars. The TC Polytune is the only one that ever comes close this pedal. But I still have my original Boss on my small board and now this Boss tu-3 on my main. This will serve you well for many years folks.
C**E
Best tuner
The best tuner I’ve owned . Gives me total confidence . Fits in my boss pedal board well and the by pass feature is awesome
R**D
Loads of tuning modes, can be used to route audio, and can power other pedals! :)
I see what all the fuss is about the TU-3 tuner pedal. I've held off buying one for ages and finally decided I needed to finish my pedal board with one. It has multiple tuning modes and display options, will easily deal with 7-string guitars and 5-string basses, and will allow drop tunings directly from the front panel using the mode control. One creative use I intend to put it to is to act as a signal splitter for effects pedals since there are two outputs, "output" and "bypass". This means I can have two FX chains behind it, in my case one vintage and one modern. It runs from standard 9v PP3 batteries or from a wall-wart power supply that is *not* provided. Fortunately for me, I always intended to power it from a power brick (in my case a TrueTone 1Spot) using the adapter cable that TrueTone provides, attached to an outlet that can provide 12v. The fact that it can pass along power to other Boss pedals is a major plus, and it will even feel older Boss pedals because I believe it steps down the power to conform to older pedals. It certainly powers my old compressor/sustainer pedal also made by Boss, using a simple daisychain cable. The display can be switched to a higher brightness so that it's visible in sunlight, but the power draw of the pedal really leaps up if you do, from 30 milliamps to 85 milliamps. If you're daisychaining other Boss pedals using the TU-3's pass-thru power you'll need to bear in mind that there will be less power available for those pedals in the daisychain. Similarly you will need to allow for this if you're using a power brick PSU and switch to high brightness now and then. The enclosure is like all Boss compact pedals - tougher than boots and with everything, especially the battery compartment, easy as anything to access. It comes with a battery installed that has been used for testing. You're recommended to keep a battery in there (it isn't being used if there's no instrument cable in the input) but since I don't play live I just removed it. How does it lock on to the notes? Phenomenally well, quick even on the low B on both 7-string guitar and 5-string bass. I have a Korg Pitchblack rack tuner that I've long considered to be the canines cojones, and this definitely is the equal of that unit, and takes the capabilities a bit further with features like the various flatting options. It's used all the time, and the option to use it on two signal paths makes some rudimentary pedal routing hacks available.
M**S
Great and accurate although a little sluggish
Great and accurate although a little sluggish. Built to withstand a nuclear explosion. WARNING Buy a mains power supply at the same time as if you leave your guitar plugged into it over night even a Duracell battery will be flat by morning. If a jack is in the input socket the battery is on. Mains supply is about £8 which is only the cost of two batteries!
S**2
I’m fully satisfied, satisfied with purchase
Works fantastic would recommend easy to tune
J**S
Boss Tuner pedal - Awesome
What more can you say, an awesome addition to the guitar collection. Part of my pedal board collection. Well constructed and value for money.
R**B
Top Notch Tuner
This is a great addition to your stomp rack. The tuner is super easy to use, has a number of tuning options and is super accurate. Could not be happier.
C**E
Qualité boss
Rien à redire sur cette pédale c'est du costaud et ça fait le taf qu'on lui demande c'est-à-dire accorder sa guitare ou sa basse, plusieurs modes disponibles et surtout on peut accorder sa guitare jusqu'à 6 demi-ton en dessous, comme toutes les pédales boss ça marche sur secteur ou sur pile 9 volts, achat indispensable sur son pédalboard. Il y avait un truc à redire je dirais que le vu mètre est un poil trop tatillon.
A**8
The boss
The standard. Doesn't get any better than this and it will last forever.
K**Y
The only tuner pedal you need + it will last a lifetime!!
The only tuner pedal you need + it will last a lifetime!!
A**İ
Bitik pil sorunu..
İlk aldığımı arızalı diye değişime gönderdim. Gelen ürün de aynı.. iade edip tekrar aldım 3. Gelen ürün de aynı. Sorun piliymiş arkadaşlar. Piller bitik geliyor! Kutusu zaten açık kontrol edilip pil değiştirirse gönderilmeden kimse bu kadar uğraşmayacak. Pedala diyecek lafım yok boss işte..
Trustpilot
3 weeks ago
3 weeks ago