Audio Research LS28, Руководство пользователя

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13
Operation
Remote Only Functions
In addition to the controls found on
the front panel, the remote control
offers access to the following
additional features of the LS28.
Hours
Pressing the ‘HOURS’ button will display
the total accumulated hours of operation
for the LS28. This is useful to determine
the approximate number of hours the
vacuum tubes have been in use. After
five seconds, the display will revert to
the normal operation screen. After
replacing vacuum tubes, the hours
counter should be reset (see instructions
under ‘Settings Menu’ on page 16).
Note
The installed 6H30 vacuum tubes have an
average life span of approximately 4,000
hours. After this time, we recommend
replacing them to maintain the best
performance of your preamplifier.
Input Select Buttons
The input buttons labeled BAL 1-4 and
SE 1-4 allow direct selection of each of
the eight inputs available on the LS28.
Display Brightness Adjustment
The front panel display has six brightness
settings, as well as the ability to dim
the display completely. To change the
brightness, use the ‘DSP UP’ or ‘DSP DN’
buttons on the remote. Note that when
the display is completely dimmed, a
small square appears in the middle of the
display to indicate the unit is powered on.
Balance
The Balance control adjusts the output from
center position to the left or right channels,
which in turn will shift the center point of
the sonic image. This is useful in the event
the main listening position is not centered
between the speakers, or can help with
certain room anomalies.
To adjust the balance, press the ‘BAL L’ or
‘BAL R’ button on the remote. The balance
scale will appear in the middle of the
display, and the indicator will move in the
selected direction:
After five seconds of inactivity, the
balance scale will disappear from the
screen. If the balance has been shifted
to the right or left, ‘R+’ or ‘L+’ will
appear at the bottom left corner.