JBL GTH400 User Manual

16
is heat- and oil-resistant whenever
running wires through the engine
compartment. All wire-to-wire
connections should be soldered and
insulated with heat shrink tubing, or
connected through a high-quality
insulated crimp-on connector or
secure set-screw-type terminal
blocks. Never leave bare wire
exposed. Terminate wires with crimp-
or solder-on lug terminals whenever
appropriate.
High Pass Satellite
Crossover Frequency: 100Hz
C: 300µF capacitor
100V, non-polorized
Subwoofer Lowpass
Crossover Frequency: 100Hz
L: 6.2mH air core inductor
(+)
(+)
(–)
(–)
(+)
(–)
C
Subwoofer (Low-Pass)
Tweeter/Midrange Satellites
(High Pass)
Right
Left
C
L
POWER
BATT(+)
REM OUT
REM IN
GND
SPEAKER LEVEL
INPUTS
FUSE
30A
FUSE
30A
_ _ __
++
L 1 R L 2 R L 3 R
++ ++
L
R
+ – – +
+ – – +
R 2 L
R 1 L
+
–
1 2 3 1 2
3
LINE LEVEL INPUTS
PREAMP OUTPUTS
SPEAKER OUTPUTS
30A 30A
GTH400
A. Satellite/Subwoofer
POWER
BATT(+)
REM OUT
REM IN
GND
SPEAKER LEVEL
INPUTS
FUSE
30A
FUSE
30A
_ _ __
++
L 1 R L 2 R L 3 R
++ ++
L
R
+ – – +
+ – – +
R 2 L
R 1 L
+
–
1 2 3 1 2
3
LINE LEVEL INPUTS
PREAMP OUTPUTS
SPEAKER OUTPUTS
30A 30A
Stereo, Non-Bridged
Speaker Connection*
Center Channel
Bridged Speaker Connection*
* Center Channel Speaker Minimum 8 Ohms, Main
Speakers Minimum 4 Ohms When Used Simultaneously.
8 Ω L-Pad
(Optional but Recommended)
4Ω Minimum 4Ω Minimum
GTH400
(+)
(–)
(+) (+)
(–) (–)
8 Ω Minimum
B. Center Channel
*You may change the subwoofer satellite crossover frequency by using the
Inductor and Capacitor values calculated with the following formulas:
High-Pass (Satellite Crossover): = New Capacitor Value in µF
Low-Pass(Subwoofer Crossover): = New Inductor Value in mH
30,000
Desired crossover Frequency in Hz
620
Desired crossover Frequency in Hz
Simultaneous Stereo-Mono
Connection Diagrams
GTH400-20107 06/03/98 15:49 Side 16

JBL GTH400 Specifications

General

Brand	JBL
Model	GTH400
Category	Car Amplifier
Language	English