JBL GTQ 360 User Manual / Operation Manual ▷ View online
9
R
L
R
L
–
+ –
+
L+
L–
R+
R–
L+
L–
R+
R–
–
+ –
+
Application 3
4-Channel Bi-Amplified System with
Non-Fading Subwoofers
Non-Fading Subwoofers
GTQ
AMP
AMP
GR 1
GR 1
GR 2
GR 2
R
L
R
L
Front Speakers
Subwoofers
Group 1
Group 2
Mode
Stereo
Stereo
Group 2 Input
–
GR 1+2
Speaker Crossover
High Pass
Low Pass
Preamp Crossover
–
–
R
R
Application 4
2-Channel Bridged
2-Channel Input
L R
GR 1
GR 2
Group 1
Group 2
Input Mode
R
R
Group 2 Input
–
GR 2
Speaker Crossover
*
*
Preamp Output Crossover
–
–
–
+
–
+
Output
GR 1
GR 2
R+
L–
R+
L–
GTQ
AMP
AMP
*Set to Low Pass for subwoofers, High Pass for satellites
or Flat for full range.
or Flat for full range.
–
+
L+
L–
R+
R–
L–
R+
–
+ –
+
Application 2
3-Channel Bi-Amplified System with
Non-Fading Mono Subwoofer
Non-Fading Mono Subwoofer
R
L
R
L
Preamp or
Speaker-Level
Input
Front
Rear
R
L
R
L
GR 1
GR 1
GR 2
GR 2
R
L
R
L
Preamp or
Speaker-Level
Input
Front
Rear
GTQ
AMP
AMP
Front Speakers
Satellite Speakers
Subwoofer
Group 1
Group 2
Mode
Stereo
L+R
Group 2 Input
–
GR 1+2
Speaker Crossover
High Pass
Low Pass
Preamp Crossover
–
–
R
L
R
L
Application 1
4-Channel Full-Range
Group 1
Group 2
Input Mode
ST
ST
Group 2 Input
–
GR 2
Speaker Crossover
Flat
Flat
Preamp Output Crossover
–
–
R
L
R
L
–
+ –
+
L+
L–
R+
R–
L+
L–
R+
R–
–
+ –
+
GTQ
AMP
AMP
GR 1
GR 1
GR 2
GR 2
R
L
R
L
Front Speakers
Rear Speakers
R
L
R
L
Preamp or
Speaker-Level
Input
Front
Rear
GTQ 360 new 7/17/98 10:44 AM Page 9
10
8. In Case of Difficulty
Power-on light does not come on
• Head unit not on; turn the head unit on.
• Ground wire is disconnected or defec-
tive; check for continuity with an ohm-
meter between the amplifier’s ground ter-
minal and a known chassis ground point.
• Battery wire is disconnected or defec-
tive; check for approximately
• Head unit not on; turn the head unit on.
• Ground wire is disconnected or defec-
tive; check for continuity with an ohm-
meter between the amplifier’s ground ter-
minal and a known chassis ground point.
• Battery wire is disconnected or defec-
tive; check for approximately
+
12 volts
between the amplifier’s battery and
ground terminals.
• Blown fuse; check amplifier’s fuses
located on the end panel near the power
connector. If they are blown, replace them
with identical ones. If the new fuses blow
immediately, check all the wiring connec-
tions. If the source of the problem cannot
be determined, consult your JBL dealer.
• Remote-on wire between the head unit
and the amplifiers is disconnected or
defective; check for
ground terminals.
• Blown fuse; check amplifier’s fuses
located on the end panel near the power
connector. If they are blown, replace them
with identical ones. If the new fuses blow
immediately, check all the wiring connec-
tions. If the source of the problem cannot
be determined, consult your JBL dealer.
• Remote-on wire between the head unit
and the amplifiers is disconnected or
defective; check for
+
12 volts between
amplifier's remote-on input terminal and
the ground wire with the head unit on.
the ground wire with the head unit on.
Power light is on, but no sound is heard
from some or all of the speakers
• Incorrect switch settings; make sure that
all switches (mode, input and crossover)
are in their correct positions for your sys-
tem configuration.
• Incorrectly connected or shorted speaker
wires; check for shorts in wiring.
• Defective or disconnected audio cables;
check for continuity and replace if
necessary.
• Incorrect gain adjustment; verify that the
amplifier gain controls are not turned
completely down. If they are, sound out-
put level may be very low and may give
the impression that the system (or part of
the system) is dead.
from some or all of the speakers
• Incorrect switch settings; make sure that
all switches (mode, input and crossover)
are in their correct positions for your sys-
tem configuration.
• Incorrectly connected or shorted speaker
wires; check for shorts in wiring.
• Defective or disconnected audio cables;
check for continuity and replace if
necessary.
• Incorrect gain adjustment; verify that the
amplifier gain controls are not turned
completely down. If they are, sound out-
put level may be very low and may give
the impression that the system (or part of
the system) is dead.
Power light is on, but no sound is heard
from some or all of the speakers
• Defective head unit or signal processor;
check each component for proper wiring
and operation.
• Defective GTQ amplifier; if there is audio
signal present at the inputs of the amplifi-
er and there is no output, the GTQ amplifi-
er may be defective.
from some or all of the speakers
• Defective head unit or signal processor;
check each component for proper wiring
and operation.
• Defective GTQ amplifier; if there is audio
signal present at the inputs of the amplifi-
er and there is no output, the GTQ amplifi-
er may be defective.
Alternator whine through the audio sys-
tem with the engine running
• Ground loops; follow the wiring sugges-
tions in the section called “Solving Noise
Problems.” Also, verify that the chassis
grounding point you have chosen is true
ground by checking for continuity
between the chassis ground point and
battery ground.
tem with the engine running
• Ground loops; follow the wiring sugges-
tions in the section called “Solving Noise
Problems.” Also, verify that the chassis
grounding point you have chosen is true
ground by checking for continuity
between the chassis ground point and
battery ground.
Bass output from speakers too low
• Speaker wired out of phase; check for
proper polarity on all speaker wiring (
• Speaker wired out of phase; check for
proper polarity on all speaker wiring (
+
amp terminal to
+
speaker terminal and –
amp terminal to – speaker terminal).
Power light is blinking and no sound is
heard
• Incorrectly connected or shorted speaker
wires; check for shorts in wiring.
• Defective GTQ amplifier; if there is no
short on the speaker outputs, the GTQ
amplifier may be broken. Consult your
JBL dealer.
heard
• Incorrectly connected or shorted speaker
wires; check for shorts in wiring.
• Defective GTQ amplifier; if there is no
short on the speaker outputs, the GTQ
amplifier may be broken. Consult your
JBL dealer.
GTQ 360 new 7/17/98 10:44 AM Page 10
11
Specifications
GTQ360
GTQ240
Power Output
60 Watts x 4 (4 Ohms, 0.05% THD)
45 Watts x 4 (4 Ohms, 0.05% THD)
(20Hz – 20kHz,
90 Watts x 4 (2 Ohms, 0.08% THD)
60 Watts x 4 (2 Ohms, 0.08% THD)
14.4V Battery Voltage)
180 Watts x 2 (Bridged 4 Ohms, 0.08% THD)
120 Watts x 2 (Bridged 4 Ohms, 0.08% THD)
Signal-to-Noise Ratio
100dBA
100dBA
Frequency Response
10Hz – 50kHz (+0, –1dB)
10Hz – 50kHz (+0, –1dB)
20Hz – 20kHz (+0, – 0.1dB)
20Hz – 20kHz (+0, – 0.1dB)
Damping Factor
> 200
> 200
Slew Factor
> 5
> 5
Line-Level Input Sensitivity
100mV – 4V RMS
100mV – 4V RMS
(For Rated Power)
Line-Level Input Impedance
10k Ohms
10k Ohms
Speaker-Level Input Impedance
15 Ohm or 100k Ohm
15 Ohm or 100k Ohm
Speaker-Level Input Sensitivity
200mV – 8V RMS
200mV – 8V RMS
Preamp Output Level
Preamp Input:
V out = V in
V out = V in
Speaker Input:
V out = 1/2 V in
V out = 1/2 V in
Minimum Speaker Impedance
Single-Ended (Non-Bridged):
Single-Ended (Non-Bridged):
2 Ohms
2 Ohms
Bridged:
4 Ohms
4 Ohms
Built-in Electronic
18dB per Octave Low-Pass Filter,
18dB per Octave Low-Pass Filter,
Crossover Frequency and Slope
Frequency Chips Available from 50Hz – 5kHz
Frequency Chips Available from 50Hz – 5kHz
Factory Setting: 80Hz
Factory Setting: 80Hz
18dB per Octave High-Pass Filter,
18dB per Octave High-Pass Filter,
Frequency Chips Available from 50Hz – 5kHz
Frequency Chips Available from 50Hz – 5kHz
Factory Setting: 80Hz
Factory Setting: 80Hz
Bass Boost Frequency and Magnitude
+4dB at 40Hz
+4dB at 40Hz
Mute Trigger Voltage
5V to 12V
5V to 12V
Power Requirement
11 to 16V DC Negative Ground
11 to 16V DC Negative Ground
Fuse Size
30 Amp ATC Type Fuse (2 per Amplifier)
40 Amp ATC Type Fuse
Size (HxWxL)
2 x 11-1/4 x 14"
2 x 11-1/4 x 12"
(51 x 286 x 356mm)
(51 x 286 x 305mm)
Weight
13.5 lbs (6.12 kg)
11.1 lbs (5.03 kg)
Speaker-Level Input
Molex Mini-Fit Jr
Molex Mini-Fit Jr
Mating Connector
#39-01-2080
#39-01-2080
Metal Pins: 39-00-0038
Metal Pins: 39-00-0038
GTQ 360 new 7/17/98 10:44 AM Page 11
JBL Consumer Products
80 Crossways Park West
Woodbury, NY 11797
80 Crossways Park West
Woodbury, NY 11797
800-336-4JBL (4525)
Part No. GTQ360/240OM
Made in USA
Made in USA
A Harman International Company
C
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L E
B R A T I
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5
0
Y E A
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S
Declaration of Conformity
Kongevejen 194B
DK-3460 Birkerød
DENMARK
DK-3460 Birkerød
DENMARK
declare in own responsibility, that the products described
in this owner’s manual are in compliance with technical
standards:
EN 55 020 /6.1988
EN 50 082-1/3.1995
Steen Michaelsen
Birkerød. DENMARK. 5/97
This is an important document.
Attach your bill of sale to
this page and keep it in a safe
place. Your bill of sale is your
warranty.
Attach your bill of sale to
this page and keep it in a safe
place. Your bill of sale is your
warranty.
The JBL warranty remains in effect for one
year from the date of the first consumer
purchase unless installed by an authorized
JBL dealer. Installation by an authorized JBL
dealer will extend the warranty to a period
of two years.
year from the date of the first consumer
purchase unless installed by an authorized
JBL dealer. Installation by an authorized JBL
dealer will extend the warranty to a period
of two years.
Who is Protected by
this Warranty
this Warranty
The JBL warranty protects the original
owner and all subsequent owners providing
that the JBL product was purchased from an
authorized dealer in the United States or
purchased by military personnel from an
authorized military outlet.
owner and all subsequent owners providing
that the JBL product was purchased from an
authorized dealer in the United States or
purchased by military personnel from an
authorized military outlet.
A copy of the
original dated bill of sale must be presented
whenever warranty service is required.
whenever warranty service is required.
What is Covered by
this Warranty
this Warranty
Except as specified below, the JBL warranty
covers all defects in material and workman-
ship. The following are not covered:
Damage caused by accident, misuse, abuse,
product modification or neglect; damage
occurring during shipment; damage from
failure to follow instructions contained in
covers all defects in material and workman-
ship. The following are not covered:
Damage caused by accident, misuse, abuse,
product modification or neglect; damage
occurring during shipment; damage from
failure to follow instructions contained in
Warranty Terms:
1 Year Transferable Limited Warranty / 2 Year Extended Transferable Limited Warranty (USA Only)
the instruction manual; damage resulting
from the performance of repairs by some-
one not authorized by JBL; damage caused
by installation of parts that do not conform
to JBL specifications; units used for com-
mercial or business use; any claims based
on misrepresentations by the seller; prod-
ucts sold on an “as-is” or final sale basis; or
the cost of installing, removing, or rein-
stalling the unit. JBL’s liability is limited to
the repair or replacement, at our option, of
any defective product and shall not include
incidental or consequential damages. JBL
reserves the right to replace a discontinued
model with a comparable model. Any
replacement units or parts may be new
or rebuilt.
from the performance of repairs by some-
one not authorized by JBL; damage caused
by installation of parts that do not conform
to JBL specifications; units used for com-
mercial or business use; any claims based
on misrepresentations by the seller; prod-
ucts sold on an “as-is” or final sale basis; or
the cost of installing, removing, or rein-
stalling the unit. JBL’s liability is limited to
the repair or replacement, at our option, of
any defective product and shall not include
incidental or consequential damages. JBL
reserves the right to replace a discontinued
model with a comparable model. Any
replacement units or parts may be new
or rebuilt.
To Obtain Warranty Service
If you require warranty service, please
return the product to your dealer. If this is
not possible and you live in the United
States, please call 1-800-336-4JBL for
information on how to obtain service or
replacement. If purchased outside the
United States, contact your local dealer for
repair or replacement.
return the product to your dealer. If this is
not possible and you live in the United
States, please call 1-800-336-4JBL for
information on how to obtain service or
replacement. If purchased outside the
United States, contact your local dealer for
repair or replacement.
Do Not Return Products to
the JBL Factory without
Authorization. They will be
Returned Unopened.
the JBL Factory without
Authorization. They will be
Returned Unopened.
You are responsible for transporting your
product for repair or replacement. JBL will
pay reasonable return charges for delivery
to any location in the United States if the
repair or replacement is covered under
the warranty.
product for repair or replacement. JBL will
pay reasonable return charges for delivery
to any location in the United States if the
repair or replacement is covered under
the warranty.
Correspondence with JBL should be
addressed to: JBL Customer Service, 80
Crossways Park West, Woodbury, NY 11797
or fax us at 516-496-0812. Outside the
United States, please contact your local
distributor.
This warranty gives you specific legal rights.
You may also have other rights which vary
from state to state. Some states do not
allow the exclusion or limitation of
incidental or consequential damages or lim-
itations on how long an implied warranty
lasts, so the above may not apply to you.
addressed to: JBL Customer Service, 80
Crossways Park West, Woodbury, NY 11797
or fax us at 516-496-0812. Outside the
United States, please contact your local
distributor.
This warranty gives you specific legal rights.
You may also have other rights which vary
from state to state. Some states do not
allow the exclusion or limitation of
incidental or consequential damages or lim-
itations on how long an implied warranty
lasts, so the above may not apply to you.
GTQ 360 new 7/17/98 10:44 AM Page 12
