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Controls
FLAT button SOUND button
GUITAR/BASS button
Power
button
Display
Tuning guide LEDs
Speaker
INPUT jack
built-in mic
a
b
c
d
a. Meter
b. GUITAR/BASS indicator
c. Note name
d. Flat indicator
Installing the battery
Slide off the back cover of the GA-2 to open the battery compartment.
Making sure to observe the correct polarity, insert the batteries, and
then slide the back cover to close the battery compartment.
If the unit malfunctions and you are unable to correct the prob-
lem by turning the power off and on several times, remove the
batteries and then reinstall them.
When the batteries run low, the display will blink slowly. Replace
the batteries as soon as possible.
Tuning procedure
■
Meter mode
In this mode, the VU style meter shown in the display is used to
tune your instrument.
1. If an instrument equipped with a pickup (such as an electric
guitar) or the optional Korg CM-200 contact microphone is used,
connect the instrument or mic cord (plug) to the INPUT jack of
the GA-2.
If you wish to tune your instrument using the built-in mic, do
not connect a plug to the INPUT jack. In steps 4 and 5, place your
instrument as close as possible to the built-in mic.
If a plug is connected to the INPUT jack, the built-in mic cannot
be used. The INPUT jack is for mono use only. Stereo plugs
cannot be used.
2. Press the power button to turn on the GA-2.
When the power is on for 20 minutes without use, the tuner will
automatically turn off to conserve battery life.
3. Press the GUITAR/BASS button to select the instrument that you
want to tune (*).
Each instrument can be tuned to the notes listed below.
GUITAR : 7B, 6E, 5A, 4D, 3G, 2B, 1E
BASS
: LB, 4E, 3A, 2D, 1G, HC (LB: Low B, HC: High C)
4. Play a single note on your instrument, and the name of the nearest
note will appear in the display. Tune your instrument so that the
correct note name is shown in the display.
5. Play a single note on your instrument, and tune it so that the
meter needle points to the middle and the center indicator of the
tuning guide is lit (if using A=440 Hz as the reference pitch). If
your instrument is flat, the left indicator will light. If it is sharp,
the right indicator will light.
Each marking in the meter scale corresponds to 2 Hz. For example
if you want to tune each string of your instrument using a refer-
ence pitch of A=436 Hz, adjust the tuning of each string so that
the needle indicates two steps below «440».
While tuning with the built-in mic a quiet environment is
recommended for precise tuning.
■
Sound Out mode
In this mode you can tune while listening to a reference tone.
1. Follow steps 2–3 outlined in “Meter mode.”
2. Press the SOUND button to enter Sound Out mode.
3. Press the SOUND button until the note to which you wish to tune
appears in the display. For the notes that can be output, refer to
step 3 of «Meter mode.» When you make a complete cycle, you
will return to Meter mode.
GUITAR will output a pitch that is one octave higher than the
actual pitch of your instrument, and BASS will output a pitch
that is two octaves higher.
4. Listen to the tone sounded by the GA-2, and tune your instrument
accordingly.
●
Flat tuning
You can use Meter mode or Sound Out mode to tune to a pitch that
is lowered by 1-5 semitones for the specified note.
1. As described in “Meter mode” or “Sound Out mode,” make the
note you wish to flatten by 1-5 semitones appear in the display.
2. Press the FLAT button to select the number of semitones that you
wish to lower the selected note.
The display will indicate -
(1-5 semitones). (This setting is
not remembered when you turn the power off.)
3. Listen to the tone sounded by the GA-2, and tune your instrument
accordingly.
Specifications
Scale:
12 note equal temperament
Detection range:
B0
(23.12 Hz) – B6 (1975.53 Hz)
: Guitar/Bass tone
Reference tone: GUITAR 7B
6E
5A
4D
3G
2B
1E
BASS LB
4E
3A
2D
1G
HC
(Pitch is 1 octave higher for GUITAR, 2 octaves
higher for BASS)
Tuning modes:
Meter mode, Sound Out mode
Flat tuning function:
1–5 semitones (semitone steps)
Detection accuracy:
±1 cent
Sound accuracy:
±1.5 cent
Connection jack:
INPUT jack (1/4” mono)
Power supply:
two AAA batteries 3V
Battery life:
Approximately 100 hours (zinc-carbon batteries,
Meter mode, A4 continuous input)
Dimensions:
100 mm (W) x 60 mm (D) x 16 mm (H) / 3.94” x
2.36” x 0.63”
Weight:
67 g / 2.36 oz (including the battery)
Included items:
Owner’s Manual, two AAA batteries
* The tuning settings are remembered even when the GA-2 is turned
off. However, the settings will be reset to the factory defaults when
the batteries are replaced. (Default: GUITAR)
• Specifications and appearance are subject to change without notice
for improvement.
