Speaker-Level Input Connections - JBL GTS100X Owner's Manual

Bridged Mode Operation – To
18
select bridged mode operation,
set the input mode switch in
either the "R" only or "L
position. In the "R" position, sig-
nal from the right channel input
is fed to both amplifier channels.
In the "L R" position, the signal
+
from both channels is summed
internally. When using a single
GTS100x for mono mode fed with
a stereo signal, it is best to use
the "L R" mode. When using a
+
GTS100x for each channel, or
when feeding a single GTS100x
with a mono signal from an out-
board crossover, use the "R"
mode and connect your source
input to the right channel input.
Simultaneous Stereo
For this connection, the Input
Mode switch is left in the stereo
R" position. Main speakers are con-
+
nected normally to the left and
right stereo outputs, and a cen-
ter-channel or subwoofer speaker
is connected in bridged mode.
Refer to the diagram on page 21
in the "Speaker Connections" sec-
tion for details.
Mono –
+ Speaker-Level Input
Connections
When speaker-level signal is used
to drive the GTS100x, the signal
goes into the amp through a spe-
cial four-wire harness/connector
(see the "Controls and Connec-
tors" section, page 12). If exten-
sion wires are needed between
the head unit output and the
amplifier unit, use conventional
speaker wire. Keep the wiring
inside the passenger and trunk
compartments and make the
wires as short as possible. All
connections should be securely
crimped or soldered and insu-
lated with heatshrink tubing.
Use the color code of the input
harness wires and the identifica-
tion on the radio/tape deck output
wires to be sure that left and
right channels are correctly con-
nected and the positive/negative
polarity of each channel is con-
nected correctly. For example,
the left positive output of the
head unit must be connected to
the left positive input of the
GTS100x. The color codes for the
speaker level input harness are
as follows:
Speaker-Level Input Color Codes
Left ( ): White
+
Left (–): White with
Black Stripe
Right ( ): Gray
+
Right (–): Gray with
Black Stripe