View JBL CS 50.4 (serv.man13) User Guide / Operation Manual online
In order that we may better serve you should you require
warranty service for your new amplifier, please retain your
original purchase receipt and return the enclosed warranty
automobile can hinder your ability to hear
traffic and permanently damage your
hearing. We recommend listening at low or
moderate levels while driving your car. JBL
accepts no liability for hearing loss, bodily
injury or property damage resulting from the
use or misuse of this product.
ance from your JBL CS Series amplifiers, we
strongly recommend that installation be
entrusted to a qualified professional.
Although these instructions explain how to
install CS amplifiers in a general sense, they
do not show specific installation methods
that may be required for your particular
vehicle. If you do not have the necessary
tools or experience, do not attempt the
installation yourself. Instead, please ask
your authorized JBL car audio dealer about
WARNINGS AND TIPS
nect the (–) negative lead from your vehi-
any holes or installing any screws.
Remember that the screws can extend
behind the surface.
vacuum lines and electrical wiring. Use
extreme caution when cutting or drilling in
and around these areas.
keep material from snagging in a drill bit.
of the original. Do not substitute another
AND MOUNTING THE
or cargo area where the amplifier will not be
damaged by shifting cargo. Amplifier
cooling is essential for proper amplifier
operation. If the amplifier is to be installed in
an enclosed space, make sure there is
sufficient air circulation for the amplifier
to cool itself.
ensure that it is clear of all moving seat
parts and does not affect the seat adjust-
ments. Mount the amplifier so it is not dam-
aged by the feet of backseat passengers.
Make sure that the amplifier is mounted
securely using nuts and bolts or the
supplied mounting screws.
never mount an amplifier outside the vehicle
or in the engine compartment.
extremely high power levels, and require a
heavy-duty and reliable connection to the
vehicle’s electrical system in order to per-
form optimally. See Figure 1 for connection
location. Please adhere to the following
Connect the amplifier’s Ground (GND) termi-
nal to a solid point on the vehicle’s metal
chassis, as close to the amplifier as possi-
ble. Refer to the chart below to determine
minimum wire-gauge size. Scrape away any
paint from this location; use a star- type lock
washer to secure the connection.
Connect a wire (see chart at right for appro-
priate gauge) directly to the vehicle’s posi-
tive battery terminal, and install an appropri-
ate fuse holder within 50cm of the battery
terminal. Do not install the fuse at this time.
Route the wire to the amplifier’s location,
and connect it to the amplifier’s Positive
(+12V) terminal. Be sure to use appropriate
grommets whenever routing wires through
the firewall or other sheet metal. Failure to
adequately protect the positive wire from
potential damage may result in a vehicle
fire. When you are done routing and con-
necting this wire, you may install a 40A fuse
at the battery.
Connect the amplifier’s Remote (REM)
terminal to the source unit’s Remote Turn-On
lead using a minimum of 1mm
remote turn-on connection, connect the
amplifier’s (REM) terminal to the vehicle’s
Refer to the application guides on the pages
that follow. Speaker connections should be
made using a minimum of 1.5mm
2,5m wire runs. If your installation differs
markedly, you will need to adjust the wire
single-channel amplifiers. There are
two sets of terminals to make it easy
to connect multiple woofers. Either
set of (+/–) terminals may be used when
To the right are two application
diagrams to help plan your subwoofer
system installation. Figures 2 and 3
show how to configure the CS200.1
do not show power, remote and input
operation to drive front and rear full-range speakers.
4-channel, 3-channel or bridged
2-channel operation, as shown in
Figures 4 through 6.
not show power, remote and input
stereo operation is 2 ohms.
Minimum speaker impedance for bridged
operation is 4 ohms.
drive a set of full-range speakers and a subwoofer.
to drive a set of components or subwoofers.
Set crossovers according to application.
verify speaker system
impedance is within
warranty card for
wire, then repair
crossover mode switch accordingly. If
you plan to use the CS50.4 to drive full-
range speakers, set the crossover mode
to FLAT and skip to “Setting Input Sensi-
control midway. While listening to music,
adjust the crossover for the least per-
ceived distortion from the speakers,
allowing them to reproduce as much bass
the crossover mode to HP (high pass) for
your full-range speakers. Adjust the
crossover frequency to limit bass and
provide increased system volume with
frequency that removes vocal information
from the sound of the subwoofer.
subwoofer(s), set the crossover mode to
LP (low pass).
audio system and play a dynamic music
increase the INPUT LEVEL control(s)
toward three o’clock until you hear
in the music. Then reduce the INPUT
LEVEL slightly until distortion is no
LEDs (on the top panel) will light, indicat-
ing the amplifier is on. If not, check the
wiring, especially the remote connection
from the source unit. Also refer to
“Troubleshooting” guide below.
250 Crossways Park Drive,
Woodbury, NY 11797 USA
trademarks of Harman International
described in this owner’s manual is in compliance
with technical standards:
• 1 x 236W RMS channel at 4 ohms and
• 1 x 338W RMS channel at 2 ohms, 14.4V supply and
• Effective damping factor: 6.395 at 4 ohms
• Frequency response: 10Hz – 302Hz (–3dB)
• Maximum input signal: 7.5V
• Maximum sensitivity: 260mV
• Output regulation: .073dB at 4 ohms
• Dimensions (L x W x H): 295x313x60mm
• 4 x 67W RMS channels at 4 ohms and
• 4 x 82W RMS channels at 2 ohms, 14.4V supply and
• Effective damping factor: 6.395 at 4 ohms
• Frequency response: 10Hz – 27kHz (–3dB)
• Maximum input signal: 6V
• Maximum sensitivity: 240mV
• Output regulation: .032dB at 4 ohms
• Dimensions (L x W x H): 384x313x60mm
are subject to change without notice.