Audio Research HIGH DEFINITION PH9, Руководство пользователя

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11
Operation
Start-Up
• Secure all rear-panel connections between
PH9, preamplifier, and input sources.
• Plug three-prong power cord from
rear of chassis into grounded A.C. wall
outlet. The Power switch defaults to ’off’
when the unit is plugged into a power
receptacle.
• Press power switch (either on the remote
or front panel). The phono preamplifier
will begin the warm-up sequence, which
lasts approximately two minutes, during
which ‘MUTE’ will flash on the display.
After the warm-up sequence is complete,
the unit will be muted. Depress the
front panel ‘MUTE’ button or the Mute
button on the remote to initiate normal
operation. You may depress the Mute
button prior to the unit completing the
warm-up cycle; ‘MUTE OFF’ will flash on
the display until the warm-up cycle is
complete.
• Select input source and adjust the volume
on your preamplifier as necessary.
Note
The two minute warm-up time is required
for the circuit to come to an appropriate
operating temperature, as well as for the
power supply to stabilize. This is a normal
function of the PH9.
Shut-Down
• Activate ‘MUTE’ function.
• Turn off power amplifier(s).
• Turn off preamplifier.
• Press Power switch to ‘off’ on PH9.
• Turn off input sources.
Note
The PH9 should be turned on before
the preamplifier or amplifier in your
system. If the PH9 is turned on after
the preamplifier and amplifier, it will
amplify any extraneous turn-on noises
the PH9 might generate, which could
potentially damage the loudspeakers.
Good operating practice dictates that
the amplifier should be turned on last,
and turned off first in an audio system.
Break-in
All quality stereo equipment benefits from
a break-in period; during this time, the
various components, wiring and solder
connections change as electrical signals
pass through them. While your PH9
will sound fantastic out of the box, it
will only improve with continued use.