GA Custom BK : Great grab and go tunner that can also works well in a pedalboard

as usual for Korg tunners it is very accurate and with rapid response. The brigth and large display makes it very easy to read and to tune even from a distance. The battery consumption is very small. The construction is solid but it is very plastic and do not feel very premium unlike some other products from Korg (i.e. Korg Pitchblack portable which i own), but this makes it lighter nad way more portable you can even put it in your pocket. The other drawback is it cannot be powered by external power supply, it looks good in the pedalboard but you have to relly in the batteries and have some spare just in case.

To summarise.

Pros:

- Large and bright display

- Very accurate

- Very light and portable

- Low battery consumption

- Has a microphone option for tunning (which the Pitchblack portable does not have)

Cons:

- Feels a bit plastic (but contributes to the lightness)

- Cannot be powered by external supply