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523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
INSTALLATION CONSIDERATIONS
OPERATING STATES
The preamplifier has three operating states:
Off: The AC mains power is disconnected by using the rear-
panel Power switch or by removing the power cord from the
rear panel.
Standby: The Standby mode has three settings that can be
selected via the Setup menu: Green, Power Save, and Normal.
Green:
This mode removes power from almost all of the
circuits, allowing the unit to be activated only via an IR control
signal, a 5V – 12V trigger or a press of the Standby button.
This mode provides maximum power conservation and is the
factory-default Standby mode. In Green standby, the LED is
dimmed.
Power Save:
This mode removes power from the audio
circuits, but keeps the control circuitry powered and
ready to receive commands from either the front panel
controls, Ethernet, RS-232 or the remote control.
This mode provides moderate power conservation.
In Power Save standby, the LED is dimmed.
Normal:
This mode shuts off the display and mutes its audio
outputs, but keeps all of its control and audio circuits powered.
This mode provides the least amount of power conservation
but allows the audio circuits to remain warmed up to deliver
optimal performance at all times. Power consumption:
67-72W.
On: The entire unit is powered up and all configured outputs
are active.
The preamplifier has an Auto Off feature that automatically
places it into the Standby mode after 20 minutes of no user
control input or audio signal passing through the unit. The
factory-default setting for the Auto Off feature is on (engaged).
You can turn the Auto Off feature off (disengaged) in the Setup
menu.
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