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R– R+
– +
L– L+
– +
GTS100
L– L+
– +
R– R+
– +
GTS100
Front Outputs Rear Outputs
Front
Full-Range
Speakers
Rear
Full-Range
Speakers
System 1
Add Power to Main Speakers
Add a GTS100 to the main
(usually front) outputs of
an existing head unit.
Secondary speakers
(usually rear-fill) connect
to the head unit's internal
amplification.
Next Step:
Add a second GTS100 to
amplify the other set of
speakers or a subwoofer
(see System 2).
Use the GTS100 to drive 1 or 2
subwoofers with the head unit
powering the main speakers.
This is an excellent way to
upgrade a good stock system.
Next Step:
Add power to Front Full-Range
Speakers (see system 3).
L– L+
– +
R– R+
– +
GTS100
L– L+
– +
R– R+
– +
– +
GTS100
Front Outputs Rear Outputs
Front
Full-Range
Speakers
Rear
Full-Range
Speakers
1 or 2
Subwoofers
System 2A
Add a Subwoofer (Active)
Use the GTS100 in
Simultaneous Stereo +
Mono mode to drive main
speakers with subwoofers.
A passive crossover is
needed for this as described
on page 18.
Next Step:
Add a second GTS100 to
power subwoofers and
main speakers individually
(see system 3).
L– L+
– +
R– R+
– +
GTS100
L– L+
– +
R– R+
– +
+–
Front Outputs Rear Outputs
Front
Speakers
Rear
Full-Range
Speakers
Subwoofer
System 2B
Add a Subwoofer (Passive)
GTS100
JBL 1394 Manual 7/17/98 11:49 AM Page 25