JBL GTS 600 (serv.man2) User Manual / Operation Manual ▷ View online
7. Typical Applications
The following diagrams show the
most common basic system
configurations of the GTS300 and
GTS600. A combination of one or
more of these “building blocks”
may be combined to form elabo-
rate system designs.
most common basic system
configurations of the GTS300 and
GTS600. A combination of one or
more of these “building blocks”
may be combined to form elabo-
rate system designs.
9
10
L– R+
– +
L– R+
– +
L– R+
– +
Preamp or
Speaker-Level
Input
L
R
2 or 4-Ohm
Full-Range
Speakers
L– L+
– +
R– R+
– +
L
R
Front
Rear
4-Ohm
Subwoofer
Stereo Subwoofers may be used by configuring
Amp B as shown in Application #1.
Amp B as shown in Application #1.
Application 1
Stereo Full-Range or Subwoofer Operation
Preamp or
Speaker-Level
Input
L
R
2 or 4-Ohm
Full-Range
Speakers or
Subwoofers
M
A
D
E
IN
IN
T
H
E
U
S
A
M
A
D
E
IN
IN
T
H
E
U
S
A
M
A
D
E
IN
IN
T
H
E
U
S
A
M
A
D
E
IN
IN
T
H
E
U
S
A
M
A
D
E
IN
IN
T
H
E
U
S
A
L
R
L
R
R
L– R+
– +
4-Ohm
Full-Range
Speaker or
Speaker or
Subwoofer
4-Ohm
Full-Range
Speaker or
Speaker or
Subwoofer
Application 2
Bridge-Mode Operation
L– R+
– +
For Single Amplifier
Subwoofer Use
For Dual-Amplifier
Full-Range or Subwoofer Use
Preamp or
Speaker Level
Full-Range Operation
Subwoofer Operation
Flat
Stereo
Speaker Output
Speaker Output
Crossover Input Mode
Switch Switch
Switch Switch
Low Pass Stereo
Main speakers are driven by head unit or
additional amplifier.
additional amplifier.
Single Amplifier:
Subwoofer-Operation (Mono)
Subwoofer-Operation (Mono)
Main speakers are driven by head unit or
additional amplifier.
additional amplifier.
Amp
Crossover
Input Mode
Switch
Switch
B
Low Pass
L + R
Speaker Output
Amp
Crossover
Input Mode
Switch
Switch
A + B
Low Pass
R
Dual Amplifier:
Subwoofer-Operation (Stereo)
Subwoofer-Operation (Stereo)
Speaker Output
Amp
Crossover
Input Mode
Switch
Switch
A + B
Flat
R
Speaker Output
Full-Range Operation (Stereo)
GTS300/600
A
GTS300/600
B
GTS300/600
GTS300/600
A
GTS300/600
B
Application 3
Bi-amplified, Three-channel
Subwoofer/Satellite System.
Subwoofer/Satellite System.
Amp
Crossover
Input Mode
Switch
Switch
A
High Pass
Stereo
B
Low Pass
L + R
Speaker Output
Crossover Input Mode
Switch Switch
Switch Switch
Application 1
Stereo Full-Range or Subwoofer Operation
Application 2
Bridge-Mode Operation
Application 3
Bi-amplified, Three-channel
Subwoofer/Satellite System
Subwoofer/Satellite System
Simultaneous Stereo-Mono
Connection Diagrams
Connection Diagrams
11
L– L+
L
L
L
R
R
R
– +
L– R+
– +
R– R+
– +
2 or 4-Ohm
Full-Range
Speakers
4-Ohm
Subwoofer
Amp
Crossover
Input Mode
Preamp
Switch
Switch
Output
Crossover
A
High Pass
Stereo
Flat
B
Low Pass
L + R
Doesn't Matter
Speaker Output
GTS300/600
A
GTS300/600
B
Application 4
Bi-amplified System Using
Preamp Output Capability.
Preamp Output Capability.
Preamp or
Speaker-Level
Input
Preamp
Output
Preamp
Intput
Stereo Subwoofers may be used by configuring
Amp B as shown in Application #1 or by
using dual GTS amplifiers as shown in
Application 2.
Amp B as shown in Application #1 or by
using dual GTS amplifiers as shown in
Application 2.
M
A
D
E
IN
IN
T
H
E
U
S
A
M
A
D
E
IN
IN
T
H
E
U
S
A
Application 4
Bi-amplified, System Using
Preamp Output Capability
Preamp Output Capability
(+)
(+)
(–)
(–)
(+)
(–)
C
C
L
Subwoofer (Low Pass)
Tweeter/Midrange Satellites
(High Pass)
High Pass Satelite
Crossover Frequency: 100Hz
Crossover Frequency: 100Hz
C:
300
µ
F capacitor
100V, non polorized
Subwoofer Low pass
Crossover Frequency: 100Hz
Crossover Frequency: 100Hz
L:
6.2mH air core inductor
Right
Left
40A
LINE
INPUT
PREAMP
OUTPUT
OUTPUT
L
L
R
R
R
SPEAKER LEVEL
INPUT
SPEAKER
OUTPUT
POWER
FUSE
40A
BRIDGED
+
_
R
+
L
+
_
+
_
BATT(+)
REM OUT
REM IN
GND
Component Values for
4 Ohm Loudspeakers*
4 Ohm Loudspeakers*
GTS300 or GTS600
A. Satellite/Subwoofer
*You may change the subwoofer satelite crossover frequency by using the Inductor and Capacitor values calculated
with the following formulas:
with the following formulas:
High Pass (Satelite Crossover):
= New Capacitor Value in
µ
F
30,000
Desired crossover Frequency in Hz
Low Pass (Subwoofer Crossover):
= New Inductor Value in mH
620
Desired crossover Frequency in Hz
L
8. In Case of Difficulty
Power-on light does not
come on
come on
Power light is on, but no
sound is heard from some
or all of the speakers
sound is heard from some
or all of the speakers
• Head unit not on; turn the head unit on.
• Ground wire is disconnected or
• Ground wire is disconnected or
defective; check for continuity with an
ohm-meter between the amplifier’s
ground terminal and a know chassis
ground point.
ohm-meter between the amplifier’s
ground terminal and a know chassis
ground point.
• Battery wire is disconnected or
defective; check approximately +12
volts between the amplifier’s battery
and ground terminals.
volts between the amplifier’s battery
and ground terminals.
• Blow fuse; check amplifier’s located on
the endpanel near the power connector.
If it is blown replace it with an identical
one. If the new fuse blows immediately,
then check all the wiring connection. If
no fault is found, consult your JBL
dealer.
If it is blown replace it with an identical
one. If the new fuse blows immediately,
then check all the wiring connection. If
no fault is found, consult your JBL
dealer.
• Remote-on wire between the head unit
and the amplifier is disconnected or
defective; check for +12 volts between
amplifier’s remote-on input terminal
and the ground input terminal with the
head unit on.
defective; check for +12 volts between
amplifier’s remote-on input terminal
and the ground input terminal with the
head unit on.
• Incorrect switch settings; make sure
that all switchs (input mode and
crossover) are in their correct positions
for your system configuration.
crossover) are in their correct positions
for your system configuration.
• Incorrectly connected or shorted
speaker wires; check for shorts in
wiring.
wiring.
• Defective or disconnected audio cables;
check for continuity and replace if
necessary.
necessary.
• Incorrect Gain Adjustment; verify that
the amplifier gain controls are not
turned completely down. If they are,
sound output level may be very low
and may give the impression that the
system) or part of the system) is dead.
turned completely down. If they are,
sound output level may be very low
and may give the impression that the
system) or part of the system) is dead.
• Defective head unit or signal processor;
check each component for proper
wiring and operation.
wiring and operation.
12
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