Mounting Instructions - JBL GTS100X Owner's Manual

4. Input Mode Selector – This
switch is used to set the input
mode for both preamp and
speaker-level inputs. Set this
switch to "Stereo" for normal
operation using both left and
right inputs. Set this switch to
"R" to drive both the left and
right channels with only a single
input on the right channel. Set
this switch to "L R" to sum
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the left and right inputs for a
mono output on both amplifier
channels.
5. Speaker Input Connector – Use
this connector for speaker-level
input signals. A wire harness is
supplied for this connector. See
the "Audio Input Connections"
section (page 17) for wiring
instructions. This input also
includes JBL's Common Sense
input circuitry which turns the
amplifier on as soon as a high-
powered head unit connected to
this input is turned on.
6. Crossover Mode Selector – This
switch controls the built-in
crossover. Set the switch to "Off"
for full-band operation. Set this
switch to "Low" to activate the
80Hz low-pass filter on the ampli-
fier (for subwoofer use). Set the
switch to "High" to activate the
100Hz high-pass filter for use with
satellite speakers. Note that the
filter does not affect the line-level
outputs on the amplifier.
7. Fuse – 20-amp ATC-type fuse.
8., 9., 10. Power Connector –
Connection for included power
wire harness. See "Power Supply
Connections" on page 15 and the
wiring diagram on page 14 for
information on wire color codes
and proper connections.
11. Speaker Output Connector –
Connection for included speaker
output harness. See "Speaker
Connections" section on page 20
for information on wire color
codes.
12. Power Indicator LED – Power
indicator light glows for normal
operation when the amplifier is
activated by either the remote or
common sense turn-on circuits.

Mounting Instructions

Place the amplifier in the installa-
tion location. Use a pen or pencil
to mark the four mounting screw
hole locations. Set the amplifier
aside and drill the holes for the
mounting screws. (Note: If the
surface you are mounting the amp
to is covered with carpeting or
upholstery, cut a small "x" in the
material at each screw hole loca-
tion before drilling the holes.
This will help prevent tearing or
stretching of the material and
keep carpet fibers from being
pulled out.) Set the amplifier in
position and align the mounting
holes with the holes previously
drilled. Put washers on the four
sheet metal screws provided and
drive them into the mounting
panel. Tighten the screws evenly
until the unit is solidly mounted.
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