Korg OT120 Orchestral Tuner

Advantages: Small, light, inexpensive, accurate
Disadvantages: Can't be used in play through mode

...This review is actually on the Korg CA-30. It seems in almost every respect the same as the GA-30. I would however like to highlight some of my experiences with this tool. Nearly all my experiences have been favourable. The machine is a chromatic tuner. This means that it can and has been used on a variety of instruments, mostly string ones from mandolins to Super low basses and bassoons. I have made one or two guitars in my carreer too. The tuner can be calibrated from between 410 - 480 Hz for C. This is highly accurate I've checked it on my frequency meter. When the tuner is calibrated, it can then be used to tune the other strings on the instrument. There are three ways to do this. One is to use the audio pickup on the tuner -perfectly ok in the living room - gets a bit tricky if there are noises around - but becomes impossible... Read review

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Advantages: Very easy to use, very accurate.
Disadvantages: Quite small, loud noises can interfere with tuning with built in mic.

...This is a must for any musician on the move, or simply someone who needs to tune guitars often. The whole thing is incredibly easy to use, with three clear lights that light up according to the note. To use it, you can either use the built in microphone, and it will pick up the sounds very easily, but can be troublesome if there is too much background noise, things like a tv, even other guitars playing in the background can be fine, but there are times when it becomes difficult. The other way is to simply use your musical cable (same type you use for an amplifier) and plug it into the jack socket in the side of the tuner. It will then pick up anything you play. The small dial alternates between the right and left sides, making it very clear how far you are from hitting the right note. The red lights will turn off and the middle green... Read review

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Advantages: Cheap, easy to use, quick and efficient
Disadvantages: None

...The Korg GA-30 is a must for anyone who tunes guitars. I have recently started to learn to play guitar, initially finding the tuning process frustraiting and long. (I play piano and have that tuned every 6 months, tuning a guitar every time i play = long) I just want to get down to playing! The korg is fantastic, you can tune using the inbuilt mic, great if its quiet, but better still to plug in the direct jact port. Then just watch the scale and/or the led's, green is good and you away. Literally seconds to get the note perfect. It also has a function to drop the note your tuning by a semi-tone to 5 semi-tones (ie two and half tones (notes) so tuning a drop D is easy as pie and you don't have reconfigure the device, just a touch of a button and you can drop tune any note! You can also tune bass guitars just as easily. Overall great... Read review

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