- Humidity Care
A sleek, simple tuner that’s packed with features.
The GA-50, a dedicated guitar/bass tuner that's the ideal unit for all-around use.
The GA-50 is the standard tuner that KORG recommends for every guitar or bass player. The new display features a larger note name indicator, making it easier to read than ever before. The GA-50 packs maximum functionality into a slim and compact body, providing high-precision tuning in any situation.
An even more readable display, with a larger note name indication.
The LCD of the GA-50 places the string number and note name in the center of the display. This indication is now larger than before, for even better visibility. The needle-type meter shows the pitch quickly and accurately. Operation is simple and smooth, and easily understandable even for the beginner.
Guitar and bass modes with support for 7-string guitars and 5 or 6-string basses.
You can select either guitar or bass mode. In each mode, the string number is shown beside the note name, letting you tune correctly and confidently. Guitar mode also supports 7-string guitars, and bass mode accommodates Low-B and High-C strings as well. Dropped tunings are also supported, allowing detection in the range from one semitone lower to a maximum of five semitones lower.
Sound out mode assists when you replace strings.
With a reference tone sounded by the built-in speaker, sound out mode provides not only a visual but also an audible pitch reference. This is especially convenient when you're replacing the strings, since you can start by tuning roughly while you listen to the reference tone, and then make fine adjustments in meter mode.
Output jack lets you tune even during a performance.
The GA-50 is equipped with an output jack. Connect your guitar to the input jack, and connect your amp etc. to the output jack so that you can check your tuning even during a performance.
Dramatic increase in battery life.
The GA-50 allows approximately 135 hours of continuous use (when using zinc-carbon batteries). You can use it with confidence even during long hours of practice. When the remaining battery capacity runs low, the display shows an indicator, letting you know that it’s time to replace the batteries.
Reduced stress when using the unit on a music stand.
A new mechanism reduces the possibility that the unit will overturn, making it less likely that the tuner will slide off and fall when placed on a music stand. You’ll be able to concentrate on your playing without fearing that the tuner might fall during the performance.
Memory backup function and auto power-off function provided.
The memory backup function remembers the calibration and sound out mode settings even when the power is turned off. (Settings are initialized when you replace the batteries.) The auto power off function automatically turns off the power when 20 minutes have passed without sound being input.
Stylish body design with excellent functionality.
The folding stand allows the tuner unit to be more stable on its own. The sliding battery cover is designed as a single piece with the unit itself, so there’s no worry that the cover might be lost when replacing the batteries.
- An even more readable display, with a larger note name indication.
- Guitar and bass modes provided, with support for 7-string guitars and 5 or 6-string basses.
- Sound out mode assists when you replace strings.
- Output jack lets you tune even during a performance.
- Dramatic increase in battery life.
- Reduced stress when using the unit on a music stand.
- Memory backup function and auto power-off function provided.
- Stylish body design with excellent functionality.
- Scale 12 note equal temperament
- Detection Range
- Guitar: 7B, 6E, 5A, 4D, 3G, 2B, 1E
- Bass: Low B, 4E, 3A, 2D, 1G, High C
- Tuning Modes Meter mode, Sound Out mode
- Flat Tuning 1-5 semitones (semitone steps)
- Detection Accuracy +/- 1 cent
- Sound Accuracy +/- 1.5 cent
- Connectors INPUT jack (1/4" monaural phone jack), OUTPUT jack (1/4" monaural phone jack)
- Internal Speaker Dynamic Speaker (φ21mm)
- Power Supply AAA battery (3.0 V) x 2
- Battery Life Approximately 135 hours (zinc-carbon batteries, Meter mode, A4 continuous input)
- Dimensions (W x D x H) 100 mm x 67 mm x 17 mm / 3.94" x 2.64" x 0.67"
- Weight 81 g / 2.86 oz. (including batteries)
- Included Items Two AAA batteries for verifying operation
- Accessories (Sold separately) CM-200 Contact Microphone
Acoustic guitars and ukulele are made of wood, and wood is sensitive to changes in climate. Shifts in temperature or relative humidity can affect your instrument in multiple ways, some of which can lead to costly repairs if you’re not careful. Solid woods in particular are especially prone to the effects of climate fluctuation. For example, extended exposure to low relative humidity (below 40% RH) can dry out the wood, causing it to shrink and run the risk of cracking. Similarly, excessive humidity can cause the wood to absorb moisture and swell, potentially causing other problems. Without adequate humidity control (especially in drier local climates), acoustic instruments can crack and their necks can warp, causing problems with fretting, intonation and playability.
So how do you prevent this kind of damage? Easy: by keeping your guitars and ukulele properly humidified (ideally between 40-60% RH). The easiest way to do this is by storing your instruments in a case with a case two-way humidifier inside. A two-way humidifier will slowly absorb or release moisture inside your case, maintaining humidity to help ensure your instrument doesn’t suffer damage. Using a digital hygrometer can help you monitor humidity levels around your instrument.
Symptoms of a dry acoustic instrument:
- Low action. Strings are very close to the fretboard.
- Hump on the fretboard where the neck joins the body.
- Sunken top across the soundboard between bridge and fingerboard.
- The back of instrument looks very flat when it is dried out.
- Sharp fret ends extend beyond the edge of the fretboard.
- The plane of the neck angle on a dry instrument hits above the top of the bridge.
Symptoms of a wet acoustic instrument:
- High action. Strings that are unusually high off the fretboard, making it difficult to play.
- Unusually swollen top
- Unusual warp on the top, back or both at the end-block
- Improper neck angle. Sighting the neck to the bridge, the frets will appear to hit below the bridge.
Using patented technology, the D’Addario Two-Way Humidification System features disposable, moisture-filled packets with a breathable membrane that provides two-way humidity control, meaning it can either release or absorb moisture to consistently maintain a predetermined relative humidity (RH) level of 45-50 percent.
Music Nomad the leader in equipment care products, has developed an easy to use, no mess, and low maintenance Ukulele humidifier. The Humilele rests securely on top of the strings to safely and evenly hydrate your Ukulele to avoid these problems.
Final Notes on Humidity Control
To monitor the amount of humidity your instrument is receiving, we recommend the purchase of a digital hygrometer, a device that gauges and provides a read-out of humidity levels. It can be kept in the room where you store your instruments, or, better yet, in a central location inside the instrument case, preferably Velcro’d to the outside of the accessories compartment (facing the heel). The optimal range for your guitars and ukulele is 45-55% RH.