Operation; Turning On The Amplifier; Adjusting The Audio Level - Radio Shack XL-400 Owner's Manual

12-2018.fm Page 18 Friday, May 12, 2000 12:46 PM
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Operation

TURNING ON THE
AMPLIFIER
The amplifier automatically turns on a few
seconds after you turn your vehicle's ignition
switch to ACC or ON or turn on your auto
sound system, depending on how you wired
the system. The POWER indicator on the
side of the amplifier lights when the amplifier
is on.
Important: Your amplifier requires 60 amps
or more of power from your vehicle's battery
during operation. To protect your battery
from discharging, do not operate the amplifi-
er unless your vehicle is running.
Note: Your amplifier temporarily shuts down
if it gets too hot, then restarts automatically
once it cools.
ADJUSTING THE AUDIO
LEVEL
For the best performance, you must set
on the left and right sides of the
EL (MIN/MAX)
amplifier to adjust the level of the audio sig-
nals that enter the amplifier.
18
1. Use a screwdriver to turn
on the left and right sides of the
MAX)
amplifier fully counterclockwise to
2. Turn the auto sound system's volume
control to about one-third of its full
range.
3. On the left and right sides of the ampli-
fier, adjust
fortable listening level.
4. Turn up the auto sound system's volume
control until the sound begins to distort.
Then immediately turn the volume down
to a point just before where the distor-
tion began.
Caution: Never turn up the auto sound
system's volume control more than
needed to adjust the audio level, or
more than two-thirds of its maximum vol-
ume.
5. On the left and right sides of the ampli-
LEV-
fier, adjust
sound is at the maximum level you want
the amplifier to produce.
6. Adjust the auto sound system's volume
control to a comfortable listening level.
Operation
LEVEL (MIN/
MIN
to a com-
LEVEL (MIN/MAX)
until the
LEVEL (MIN/MAX)
.