PROEL WX8A User Manual page 6

3. GND LIFT switch
This switch lifts the ground of the balanced audio input from the earth-ground of the amplifier. If you have HUM noise
problems on one or more loudspeakers try to change the position of these switches (often all up or all down for all the
amplifiers in the system). Please note that to have an effect all cables must be balanced.
4. LEVEL control
Rotary level control: it attenuates the level of the signal sent to the LINE input. The attenuation ranges from "0" fully
closed (the signal is completely attenuated) to "10" fully open, nominal level (the signal is not attenuated in any way,
so it is fed to the internal amplifier at the same level at which it arrives on input).
5. SIGN / LIMIT indicator
GREEN LED illuminates to indicate the presence of the signal at the amplifier input.
RED LED illuminates when the internal amplifier's output is limited.
NOTE: When this LED flashes reduce the input signal level.
6. PRESET MONITOR/FOH selector
This switch allows the selection between two equalisation settings, suited to two different uses.
MONITOR: suited for stage monitoring sound reinforcement for an improved feedback rejection.
FOH: this preset has been designed for typical sound reinforcement applications with the speaker mounted on floor
stand.
7. POWER switch
Speaker is "ON" when the switch is in the "I" position.
NOTE: When you shut down your equipment, turn off the speaker first. When powering up, turn on the speaker last.
8. ON indicator
GREEN LED: when lighted indicates that the amplifier has been turned on and AC power is available.
9. AC~ socket
Here's where you plug in your speaker's mains supply cord. You should always use the mains cord supplied with the
speaker. Be sure your speaker is turned off before you plug in the cord.
10. FUSE holder
Here is where the mains protection fuse is placed.
REPLACE THE PROTECTION FUSE ONLY WITH SAME TYPE AS SHOWN ON THE PRODUCT.
IF AFTER THE SUBSTITUTION, THE FUSE INTERRUPTS AGAIN THE APPARATUS WORKING, DO NOT TRY AGAIN
THEN CONTACT THE PROEL SERVICE CENTRE.
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