Setup; Unpack Your Amplifi Er; Voltage Selection; Mount Your Amplifi Er - Crown XL Series Operation Manual

XLS Series Power Amplifi ers

3 Setup

3.1 Unpack Your Amplifi er
YOU WILL NEED (not supplied):
• Two input wiring cables
• Two output wiring cables
• Rack for mounting amplifi er (or a stable
WARNING: Before you start to set up
your amplifi er, make sure you read and
observe the Important Safety Instruc-
tions found at the beginning of this
manual.

3.2 Voltage Selection

CAUTION: Before use, your amplifi er
must be set to the correct operating
voltage for your local supply. Typically,
units are shipped from the factory with voltage
already set with the correct setting, but this
setting should be verifi ed before fi rst using the
amplifi er.
The selected voltage is displayed on the top,
left side of the fuse drawer (see Figure 3.1). To
change the voltage setting; disconnect the power
source, then gently pry out the fuse casing from
the fuse drawer. Replace with the correct voltage
positioned to display on the top left side.
Be sure to operate your amplifi er from a power
supply within ±10% of the rated voltage (i.e.,
Figure 3.1
Voltage Selection 108-132V for 120V supply).
Operation Manual
surface for stacking)
3.3 Mount Your Amplifi er
CAUTION: Before you begin, make sure
your amplifi er is disconnected from the
power source, with power switch in the
"off" position and all level controls
turned completely down (counterclock-
wise).
Use a standard 19-inch (48.3 cm) equipment
rack. See Figure 3.2 for amplifi er dimensions.
You may also stack amps without using a
cabinet.
NOTE: When transporting, amplifi ers should be
supported at both front and back.
Figure 3.2 Dimensions

3.4 Ensure Proper Cooling

When using an equipment rack, mount units
directly on top of each other. Close any open
spaces in rack with blank panels. DO NOT
block side or front air vents.
Figure 3.3 illustrates standard amplifier air-
flow.
2 in
.
Figure 3.3 Airfl ow
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