tc electronic Polytune 3 Mini


Polyphonic Tuner and Buffer for Electric Guitar

  • Bonafide buffer circuit maintains sound even over long cable runs and intermediate effects
  • Polyphonic voices - shows the tuning of all strings simultaneously
  • True Bypass
  • Fast chromatic tuner with 0,5 percent accuracy
  • Ultra-precise strobe tuner with ± 0.02 percent accuracy
  • "Always On" mode provides tuner detection even when Polytune 3 is not muted
  • Automatic brightness adjusting, super-bright 109-LED-display changes automatically between polyphonic and monophonic tuning
  • LED: Effect On
  • Foot switch: On/Off/Mute
  • Connections: Input (6.3 mm jack), Output (6.3 mm jack)
  • Power supply connection (barrel connector 5.5 x 2.1 mm, negative polarity inside)
  • Current consumption: 40 mA
  • Power supply with a 9 V DC mains adapter (not included in the scope of delivery - suitable mains adapter: Article Nr. 409939)
  • No battery operation
  • Dimensions (W x D x H): 51 x 45 x 93 mm
  • Weight: 160 g
  • Colour: White
  • Made in China
Available since May 2019
Item number 465397
Sales Unit 1 piece(s)
Chromatic Yes
Display LED
Integrated Microphone No
Integrated Metronome No
PSU Connector Yes
Design Floor Tuner
Special Features Polyphon
Dimensions 51 x 45 x 93
Weight 160 g
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Including VAT; Excluding £10 shipping
In stock
In stock

This product is in stock and can be shipped immediately.

Standard Delivery Times
Delivery approx. between Monday, 24.06. and Tuesday, 25.06.

385 Customer ratings

4.9 / 5

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237 Reviews

A pedalboard essential
BasGef 18.01.2020
Every pedalboard should have a tuner, and for the price, you can't really go wrong with this one. It's accurate and fast, and has a bright display. I will start with a list of pros and cons, with more details provided below.

* Small footprint
* Accurate
* Choice of chromatic and strobe tuner display
* Multi-string tuning
* Built-in buffer (can be switched off)

* Cannot change LED colours; keep this in mind if you are red-green colour blind(!)
* Only tunes to standard concert pitch (A440)
* Polyphonic mode does not support 7-strings

Accurate and fast
The Polytune tunes quickly and accurately. By default, the display shows a chromatic tuner, but it can also be set to a strobe-like display. The latter appears to provide somewhat more accurate results due to the higher precision of that display mode.

Note that despite being a chromatic tuner, the Polytune only seems to work with the standard concert pitch of A440hz. I could not find a way to change this calibration.

Multi-string tuning
The Polytune can also tune all strings at the same time. This mode is not as accurate as single-string tuning, but the best part is that the tuner switches between multi-string tuning and individual strings without any buttons. So, for me, the polyphonic mode is mainly to check which strings need tuning: simply hit all strings to see which of them are flat/sharp, and then tune those one by one. It saves you going through all six.

Do note that I wrote ‘six’ very specifically. This mode only seems to support regular six strings, because it only shows six sets of LEDs. So if you have a guitar with seven strings, you will not be able to fully use this multi-tune mode. However, that doesn’t make this tuner completely useless for those guitars: the chromatic tuner does seem to accurately pick up the low B.

Good display
The display is definitely bright enough for most cases, though I haven't tested in outdoor situations. This mainly goes for the chromatic mode; when it comes to the strobe, I am not entirely convinced that this will be easy to see in the brightest surroundings.

Perhaps my biggest point of criticism is that the colours of the display cannot be changed. As a colour blind person, I have some difficulty with the red-green LED combination. The option to change either of these to, say, blue would’ve been helpful.

Bonus: buffer
In addition to a great tuner, the small enclosure also houses a buffer. When enabled, the buffer allows you to operate the tuner in always-on mode. One reason for me to choose the Polytune 3 mini is the fact that the on/off switch is located on the outside of the pedal whereas the regular Polytune 3 requires you to unscrew the backplate.


stochastique 22.02.2022
I have this wonderful little clip-on tuner called the PolyTune Clip Black from the same manufacturer, which works so well and is packed with a lot of features (alternate tuning, strobe, set reference...) and needed the same in a compact pedal format. Unfortunately, this pedal does not meet the expectation: into this pedal, there is not half the feature of the clip-on tuner, and especially there is no way to set the reference so you are stuck with a 440Hz tuning.
Also, that little sheet of paper thrown into the box cannot be called a user's manual.


All you can ask for in a pedal
Pedro Shiraishi 15.05.2023
Not only it is a great tuner, it also functions as an input buffer, and a great one at that. The only "issue" I would point out is the not always accurate tuning when strumming all strings at once, but I tend to tune strings individually anyways, so it doesn't change anything.


almost everything in the full size version, small and perfectly formed
Simon Murnau 15.03.2022
This is a great little tuner, and is as responsive and easy to use as it's bigger parent. The only thing it lacks is the ability to change the reference pitch (that it's bigger version has) so if you're happy to stay with 440Hz and need to save space on your pedal board, this is the little guy for you. It's bright, accurate and solid.