CHAPTER 3: OPERATIONS:
Setting the input levels:
To
match your amplifier's input sensitivity (gain) to
yo_ur
source unit's output level,
we
recommend the following
procedure: .
A Turn the input level control counterclockwise
to
MIN
(minimum).
B. Play a bass-heavy music track through your source
unit. Turn the source unit's volume control
to
the
3/4
position.
C.
Turn the input
level
control dial clockwise towards MAX
until you hear distortion
in
the bass (it's no longer clear).
D.
Slowly turn the front level input control dial counter-
clockwise until the bass sounds clear again.
E.
Your front input level
is
now
correctly set.
GAIN
✓
0.
MIN
MAX
Setting the crossover
Properly setting crossover filter selectors optimiz~s
frequency distribution for efficient speaker operation and
best sound.
Use crossover-filter frequency controls
to
adjust crossover
point settings for your subwoofer
to
suit your preference;
generally you'll want
to
lower the crossover point until
you can no longer hear elements such as vocals from the
subwoofer. Turn the dials
to
the left to lower the crossover
point and to the right to raise the crossover point. Exact
crossover settings for subwoofers finally depend on your
listening preferences.
Using the remote bass control
For convenient control over the
bass output, you can use the
remote bass control. Mount the
module
in
a location within easy
reach
of
the driver's seat using
sheet metal screws
or
self-adhesive
hook-and-loop fasteners (not included). Turn the dial
to
the right to increase the bass output, and
to
the left to
decrease the bass output.
CHAPTER
4:
TROUBLESHOOTING
PROBLEM: No audio and POWER INDICATOR
is
off.
CAUSE and SOLUTION:
No
voltage at BATT+ and/or
REM
terminals,
or
bad
or
no ground connection. Check
voltages at amplifier terminals with VOM.
PROBLEM:
No
audio and PROTECT INDICATOR flashes
every 4 seconds.
CAUSE and SOLUTION: DC voltage on amplifier output.
Amplifier may need service; see enclosed warranty card
for service information.
~
HARMAN
~
HARMAN International Industries,
Incorporated 8500 Balboa Boulevard,
Northridge, CA 91329 USA
www.jbl.com
PROBLEM: No audio and PROTECT INDICATOR
is
on.
CAUSE and SOLUTION: Amplifier
is
overheated. Make
sure amplifier cooling
is
not blocked at mounting location.
Verify that speaker-system impedance
is
within specified
limits.
Or,
there may be voltage greater than 16V (or less
than 8.5V) on BATT+ connection. Check vehicle charging
system.
PROBLEM: No audio and PROTECT and POWER
INDICATORS flash.
CAUSE and SOLUTION: Voltage less than 9V on BATT+
connection. Check vehicle charging system.
PROBLEM: Distorted audio.
CAUSE and SOLUTION: Gain is not set properly. Check
INPUT LEVEL setting. Check speaker wires for shorts
or
grounds. Amplifier
or
source unit may be defective.
PROBLEM: Distorted audio and PROTECT INDICATOR
flashes.
CAUSE and SOLUTION: Short circuit
in
speaker or wire.
Remove speaker leads one at a time to locate shorted
speaker
or
wire, and repair.
PROBLEM: Music lacks dynamics
or
"punch."
CAUSE and SOLUTION: Speakers are not connected
properly. Check speaker connections for proper polarity.
PROBLEM: Amplifier fuse keeps blowing.
CAUSE and SOLUTION: The wiring
is
connected
incorrectly
or
there is a short circuit. Review installation
precautions and procedures
in
manual. Check wiring
connections.
PROBLEM: Engine
noise-whining
or
clicking-in
system when the engine
is
on.
CAUSE and SOLUTION: Amplifier is picking up
alternator noise. Turn
down
gain. Move audio cables
away from power wires. Install an alternator noise filter on
power
line between battery and alternator. Check ground
connections on the amplifier since a loose
or
improper
ground is one
of
the main causes for extraneous noise
in
your audio system.
CHAPTER
5:
SPECIFICATIONS
• RMS power @ 4 ohms:
600W
• RMS power @ 2 ohms: 1
000W
• Total peak power: 2400W
• Frequency response (-3dB): 10Hz -320Hz
• High input maximum signal level: 10V
• High input maximum sensitivity: 1V
• Line input maximum signal level: 2V
• Line input maximum sensitivity: 0.2V
• Line
in
signal-to-noise ratio (reference to 1 watt):
~
75dB
• THO+
Nat
rated power
(20Hz-
20kHz):
:$;1
%
• Low-pass filter frequency range: 32Hz -320Hz
• Low-pass filter slope: 12dB/octave
• Bass
EQ
frequency and level: 45Hz
FIX
0-12dB
• Protection mode: DC,
OVP,
UVP,
OCP,
OTP
• Operating voltage:
9-16V
• Quiescent current draw:
<1
.SA
• Fuse size and number: 35A x 3
• Dimensions
(H
x W x
D):
59.
2mm
x 37
4.
7mm x 189.4mm
• Weight: 3.99
KG
© 2018 HARMAN International Industries, Incorporated.
All
rights reserved.
JBL
is
a trademark of HARMAN International Industries, Incorporated,
registered
in
the United States and/or other countries. Features, specifications
and appearance
are
subject to change without notice.
