JBL GTS100X Owner's Manual page 22

Bridged-Mode Connection –
22
Connect the loudspeaker positive
( ) terminal to the RIGHT chan-
+
nel positive wire (Gray). Connect
the loudspeaker negative (–) ter-
minal to the LEFT channel nega-
tive wire (White with Black
stripe). The input-mode switch
should be set to "R" or "L
Simultaneous Stereo
+
Connection – The GTS100x may
be used to drive a stereo pair of
speakers with a mono (bridged)
speaker at the same time. This
is sometimes used for center-
channel applications or for in-
expensive subwoofer addition,
essentially creating a three-
channel system. However, unlike
a true bi-amplified subwoofer
connection, this system con-
figuration does not provide for
control of subwoofer-satellite
balance; it requires the use of a
passive subwoofer crossover
instead of the superior active
circuitry already built into the
GTS100x, and it does not separate
the power amps driving the satel-
lites from the amps driving the
subwoofer. Therefore, this con-
R."
nection is best used for addition
+
Mono
of a center-channel speaker, or as
an interim step as you build up to
a true bi-amplified subwoofer-
satellite system. Connect the
main pair of stereo speakers as
in the stereo mode, connect the
mono speaker as described for
bridged-mode connection (see
diagram on page 21). For use in
center-channel applications, a
high-power "L-Pad" or power
fader can be used to attenuate
the center channel for proper
level matching. For subwoofer-
satellite use, connect a non-
polarized capacitor in series with
each main speaker, and a high-
power inductor (coil) in series
with the subwoofer. Your autho-
rized JBL dealer will help you
choose the correct values for
your particular components. The
input-mode switch should be set
to "Stereo."