ETI Sound Systems, INC US-1200 Manual De Usuario

THE BEAUTY OF POWER

Reduce the output volume using the specific channel’s 

level controls until the clipping disappears or until the 

CLIP LEDs flash only occasionally.

These yellow LEDs indicate that the channel is in either

PROTECT mode or MUTE mode. When the channel

goes into protect mode its output will turn OFF. This is

to protect the speakers connected to that channel.

 

NOTe: The protect LED will light when the  

heatsink is overheating. Once the affected  

 

channel’s heatsink cools down, the output signal  

will automatically resume and the PROTECT LED  

will turn OFF. Constant triggering of the thermal  

 

protection indicates blocked vents, dusty air  

 

filters, possible low load condition, or problems  

 

with your speakers or cables.

NOTe: The PROTECT LEDs will illuminate for 

 

about two to three seconds when the amplifier is  

powered ON and they will fade slowly when the  

amplifier is powered OFF. This indicates your  

 

amplifier is going through a transition process  

 

and the outputs are muted.

WARNINg: If the PROTECT LEDs illuminate  

constantly and don’t turn OFF, even when  

 

the speakers are physically disconnected from  

 

the amplifier’s outputs, this indicates a fault.  

Immediately turn the amplifier OFF, disconnect  

the power cord from the AC outlet, and refer the  

amplifier to service personnel. Authorized B-52  

 

service centers are listed at www.B-52Pro.com

This green LED illuminates when the MODE switch on

the rear panel is set in the BRIDGE position. Use the

Channel 1 LEVEL control to adjust the output volume

in BRIDGE MONO mode; the Channel 2 LEVEL con-

trol is inactive in this mode.

The blue LED will illuminate when your amplifier is

turned ON.

This green LED illumiates when the MODE switch on

the rear panel is set to PARALLEL. Use the Channel 1

LEVEL control to adjust the output volume of Channel

1 and the Channel 2 LEVEL control to adjust the out-

put volume of Channel 2, even though both channels 

amplify the same signal connected to the Channel 1 

input.

Use this switch to turn your amplifier ON or OFF.