Toa P-924MK2 - Manual (Page 12)

Master volume control knob
Volume control cover YA-920
(accessory)
9. VOLUME CONTROL COVER
To prevent the accidental change of the setting of the Master volume control, remove the knob after setting it
to the desired position and attach the optional cover YA-920 instead.
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8. OPERATION
Be sure to complete all connections before operation.
Step 1. Press the power switch to turn on the power.
The power indicator lights green. The amplifier comes into operation about 5 seconds after the power
has been switched on.
Step 2. Adjust the master volume control for the optimum level.
Turn the knob clockwise to increase the output level and counterclockwise to decrease it.
[When the unit is used for normal music playing or announcement]
Adjust the master volume control so that the Normal Indicator intermittently lights. Sound quality is
downgraded when the Peak Indicator remains lit.
[When the unit is used in combination with a mixer preamplifier]
Adjust the total gain with the master volume control of the mixer preamplifier.
In this case, leave the master volume control of the power amplifier set at the fully clockwise position
(maximum gain level).