29
Headphones Output and Line Out Adjustments
Here’s how to adjust the output level of the sound being
monitored through headphones.
1
Turn the PHONES [VOLUME] knob to adjust the
headphone output level.
2
Turn the rear panel [ATT] knob to obtain the most
suitable output level.
Adjust the output level as appropriate for the characteristics of the
headphones you’re using.
Here’s how to adjust the tone of the headphone’s lower and
upper ranges to achieve comfortable listening.
1
Turn the [BASS] or [TREBLE] knob to adjust the tone of the
lower range or upper range.
When monitoring through headphones, you can protect your
hearing by applying a limiter to instantly lower the volume when
an unexpectedly loud sound occurs.
1
Turn the [LIMITER] knob to adjust the limiter effect
(threshold level).
Adjust this so that the indicator above the [LIMITER] knob lights
occasionally during the performance.
* The indicator above the [LIMITER] knob will light when the limiter
operates.
* When the limiter is off, clipping noise may occur if the signal sent
to the headphones is too great. If this occurs, take the following
actions.
•
Lower the volume of each group.
•
Adjust the [BASS] and [TREBLE] knobs so that their settings are
not excessive.
* When the limiter is operating, clipping noise may occur in the
headphones, depending on the audio sources being mixed by the
M-48. If this occurs, make the following adjustments to minimize
the noise.
•
Lower the volume of each group.
•
Adjust the threshold level.
Here’s how to adjust the output level of the LINE OUT L/R jack.
This allows you to adjust the output level when a floor monitor is
connected to the LINE OUT L/R jack.
1
Turn the LINE OUT [VOLUME] knob to adjust the output
level of the line out.
Adjusting the Headphones Output Level
[VOLUME] knob position
Range
MIN–MAX
-Inf dB – +10.0 dB
[ATT] knob position
Range
MAX–0 dB
-50 dB–0 dB
Adjusting the Headphones Output Tone
Knob (function)
Range
[BASS] knob
(adjusts the lower range)
-15.0 dB – +15.0 dB
* Center frequency: 120 Hz
[TREBLE] knob
(adjusts the upper range)
-15.0 dB – +15.0 dB
* Center frequency: 10kHz
Applying a Limiter to the Headphones
Output
[LIMITER] knob position
Range
OFF
Off
OFF–MAX
0.0 dB – -40.0 dB
Adjusting the Line Out Output Level
[VOLUME] knob position
Range
MIN–MAX
-Inf dB – +10.0 dB
•
The limiter acts upon the input signal so as to prevent unexpected surges in the level. However, the actual volume at the final
stage is determined by the settings of the PHONES [VOLUME] knob, [ATT] knob, and LINE OUT [VOLUME] knob.
•
With certain settings for the output level, the resulting sound could be of a volume level capable of causing permanent
hearing difficulties. Do not use this device at high volumes for an extended period of time. If you should experience any loss
of hearing or ringing in your ears, you should immediately stop using this product, and consult a medical professional.
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