XLS Series Power Amplifiers
page 12
Operation Manual
3.2 Front Panel Controls 
and Indicators
A. Cooling Vents
Front-to-rear forced airflow.
B.  Level Controls
Two black rotary level controls, one for 
each channel.
C. Clip Indicators
Two red LEDs, one for each channel, illu-
minate when the channel’s output signal 
is being overdriven.
D.  Power Indicator
Green LED indicates amplifier has been 
turned on and AC power is available. 
E. Fault Indicator
Yellow LED illuminates when amplifier is 
in protect mode. Also illuminates briefly 
during normal power-up when amplifier is 
first switched on. 
F. Power Switch
Amplifier is on when the switch is in the 
UP position.
Figure 4.1  Front Panel Controls and Indicators
3 Operation