Audio Research High Definition Reference 80S, Руководство пользователя

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17
Start-Up
•
Secure interconnects between the
amplifier and your preamplifiero the
appropriate output terminals.
•
Attach supplied power cord to rear IEC
inlet of amplifier, and plug other end into
grounded A.C. power receptacle.
•
Turn on preamp and all other
components; mute preamp output.
•
Press Reference 80S front panel power
switch. Green power LED will flash on/off
for approximately 2 minutes during the
auto mute cycle to allow the amplifier
to stabilize voltage before becoming
active. The LED will stay on brightly,
once the amplifier has stabilized.
•
Unmute preamplifier output, initiate
source component signal, and adjust
gain as appropriate.
Note
The Reference 80S should be turned
on after the other components of your
system. If the Reference 80S is turned on
before other components, the amplifier
will amplify any extraneous turn-on noises
those components might generate, which
could potentially damage loudspeakers.
Good practice dictates that the amplifier
should be turned on last and turned off
first in an audio system.
Shut-Down
•
Mute preamplifier output.
•
Turn off Reference 80S via front panel
power switch (or 12V trigger or RS-232).
Note
To prevent stress to the power supply
and vacuum tubes, the control circuitry is
programmed with a “hot restart” lockout
to prevent turning the unit on within 2
minutes of shutting the unit off. If the
Reference 80S power switch is pressed
during this lockout period, the power
LED will illuminate red to indicate lockout
operation. After 2 minutes, normal turn on
can be initiated.