Audio Research LS28 - Startup, Shutdown, and Break-in

11
Operation
Start-Up
• Secure all rear-panel connections between
LS28, power amplier(s) and input
sources.
• Plug three-prong power cord from
rear of chassis into grounded A.C. wall
outlet. The Power switch defaults to ’o’
when the unit is plugged into a power
receptacle.
• Press power switch (either on the remote
or front panel). The preamplier will
begin the warm-up sequence, which lasts
approximately 45 seconds, during which
‘MUTE’ will ash 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 ash on the display until
the warm-up cycle is complete.
• Select input source and adjust the volume
as necessary.
Shut-Down
• Activate ‘MUTE’ function.
• Turn o power amplier(s).
• Press Power switch to ‘o’.
• Turn o input sources.
Note
The LS28 should be turned on before
the amplier in your system. If the
LS28 is turned on after the amplier,
it will amplify any extraneous turn-on
noises the preamplier or other source
components might generate, which could
potentially damage the loudspeakers.
Good operating practice dictates that
the amplier should be turned on last,
and turned o rst in an audio system.
Break-in
All quality stereo equipment benets from
a break-in period; during this time, the
various components, wiring and solder
connections change as electrical signals
pass through them. While your LS28
will sound fantastic out of the box, it
will only improve with continued use.