Adjusting The Master Volume; Operation Confirmation Sounds; Using Headphones - Yamaha P-125 Owner's Manual

Adjusting the Master Volume

To adjust the volume of the entire keyboard sound, use
the [MASTER VOLUME] while playing the key-
board.
Softer
CAUTION
• Do not use the instrument for a long period of time at a
high or uncomfortable volume level, since this can cause
permanent hearing loss.
Intelligent Acoustic Control (IAC)
With this function, the sound quality of this instru-
ment is automatically adjusted and controlled accord-
ing to the overall volume. Even when the volume is
low, you can hear both low sounds and high sounds
clearly. IAC Control is effective only from the sound
output of the instrument speakers.
IAC On/Off
Default setting: on
IAC Depth
Setting range: -3 – 0 – +3
Default setting: 0
C0 C1 C2
P-125
C1 C2
P-121
IAC On/Off
C2: Off
C2
D2: Down by 1
(reset to the default setting)
IAC Depth
Louder
q
While holding
down
C3
C4 C5 C6 C7
C3
C4 C5 C6
C#2: On
E2: Up by 1
D#2: 0
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Operation Confirmation Sounds

When a setup is changed using a button and key com-
bination, an operation sound ("On," "Off," click,
tempo value input) is sounded. This confirmation
sound can be enabled (On) or disabled (Off) as
desired.
P-125
q
While holding
down

Using Headphones

Connect a pair of headphones to the [PHONES] jack.
Since this instrument is equipped with two
[PHONES] jacks, you can connect two pairs of head-
phones. If you are using only one pair, insert the plug
into either of these jacks.
Standard stereo
phone plug
CAUTION
• Do not use the headphones for a long period of time at a
high or uncomfortable volume level, since this can cause
permanent hearing loss.
Reproducing natural sound distance (Stereo-
phonic Optimizer)
Default setting: on
The Stereophonic Optimizer recreate for headphones
a natural distance between your ears and the instru-
ment, just as when playing an acoustic piano.
Stereophonic Optimizer On/Off
While holding down [PIANO], press the F3 key to
turn the function off or F#3 to turn on.
P-125, P-121 Owner's Manual
Setting Up
Second lowest key: On
P-121
Lowest key: Off
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