Simultaneous Speaker-Level And Line-Level Inputs - JBL GTS100X Owner's Manual

Simultaneous Speaker-Level
and Line-Level Inputs
In some systems it may be desir-
able to use both the speaker-level
inputs and line-level inputs simul-
taneously. For instance, if you
have a stock head unit in your
car, you may connect the
speaker-level inputs of the head
unit to the GTS100x. You may
simultaneously connect a CD
player equipped with preamp vol-
ume control to the preamp-level
inputs of the GTS100x. The
Universal Interface circuitry of
the GTS100x will isolate the
inputs from each other while
mixing both signals. Therefore,
switching from one source to the
other is as simple as turning the
unused source off and turning
the desired source on. No
other switches or relay boxes
are needed.
When using this setup it is also
possible, using the wiring setup
shown at right, to allow either of
the two sources to remotely turn
on the amplifier. This is not nec-
essary if the factory radio is of
the high-power BTL type and is
connected to the speaker-level
inputs. The Common Sense turn-
on circuit will activate the
GTS100x when a powered source
is used, and the conventional
remote connection of the preamp-
level source will activate the amp
when it is used.
Dual Source Remote Wiring Diagram
1N4001
From Head
Diode
Unit #1
Remote or
Antenna Output
1N4001
From Head
Diode
Unit #2
Remote or
Antenna Output
19
To
GTS100x
Remote