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Declaration of Conformity

We, Harman Consumer International

2, route de Tours
72500 Chateau-du-Loir
France

declare in own responsibility that the products
described in this owner’s manual are in compliance
with technical standards:

EN 55013:2001
EN 55020:2002

Emmanuel Millot

Harman Consumer

International

Chateau-du-Loir, France 3/04

JBL Consumer Products 
250 Crossways Park Drive, 
Woodbury, NY 11797 USA

© 2004 Harman International
Industries, Incorporated

JBL is a registered trademark 
of Harman International 
Industries, Incorporated.

Part No. CSAMPOM3/04

Features, specifications and appearance are subject to change without notice.

CONTROLS AND SETUP

SYMPTOM

LIKELY CAUSE

SOLUTION

No audio 

No voltage at BATT+ 

Check voltages at

(POWER LEDs

or REM terminals, 

amplifier terminals

are off)

or bad or no ground 

with VOM

connection

No audio 

Amplifier is

Make sure amplifier

(POWER

overheated

cooling is not blocked

LEDs are on)

at mounting location;
verify speaker-system
impedance is within 
specified limits

Voltage more than 16V

Check vehicle

or less than 8.5V on

charging system

BATT+ connection

SYMPTOM

LIKELY CAUSE

SOLUTION

No audio

Voltage less than 9V on 

Check vehicle

(POWER BATT+ 

connection

charging 

system

LEDs flash) 

DC voltage on 

Amplifier may need

amplifier output 

service; see enclosed
warranty card for
service information 

Distorted audio

Input sensitivity is 

Check INPUT 

not set properly, or

LEVEL setting; or

amplifier or source 

check speaker wires

unit is defective

for shorts or grounds

Distorted audio

Short circuit in 

Remove speaker leads

and POWER 

speaker or wire

one at a time to locate

LEDs flash

shorted speaker or 
wire, then repair 

Music lacks 

Speakers are not 

Check speaker

“punch”

connected properly

connections for
proper polarity

SETTING THE
CROSSOVER(S)

Determine your system plans and set 
the crossover mode switch accordingly. 
If your system design does not include 
a subwoofer with the CS50.4, set the
crossover mode to FLAT and skip to
“Setting Input Sensitivity.”

Initially set the crossover frequency 
control midway. While listening to music,
adjust the crossover for the least 
perceived distortion from the speakers,
allowing them to reproduce as much 
bass as possible. 

Systems using a separate subwoofer set
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 
less distortion.

For subwoofers, choose the highest 
frequency that removes vocal information
from the sound of the subwoofer.

If using the CS50.4 to drive a subwoofer(s),
set the crossover mode to LP (low pass).

SETTING INPUT
SENSITIVITY

1. Initially turn the INPUT LEVEL control(s)

to minimum (counter clockwise).

2. Reconnect the (–) negative lead to the

vehicle’s battery. Apply power to the
audio system and play a dynamic music
track.

3. On the source unit, increase the volume

control to 3/4 volume. Slowly increase
the INPUT LEVEL control(s) toward three
o’clock until you hear slight distortion 
in the music. Then reduce the INPUT
LEVEL slightly until distortion is no 
longer heard. 

NOTE:

After the source unit is on, blue

LEDs (on the top panel) will light, indicating
the amplifier is on. If not, check the wiring,
especially the remote connection from the
source unit. Also refer to “Troubleshooting”
guide below.

TROUBLESHOOTING

CS200.1

• 236W RMS x 1 channel at 4 ohms and 

1% THD + N

• Signal-to-noise ratio: 100dBA (reference 1W into 4 ohms)

• 338W RMS x 1 channel at 2 ohms, 14.4V supply and 

1% THD + N

• Dynamic power: 464W at 2 ohms

• 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): 12" x 10" x 2-1/4"

• Fuses: 20A x 2

CS50.4

• 67W RMS x 4 channels at 4 ohms and 

1% THD + N

• Signal-to-noise ratio: 86dBA (reference 1W into 4 ohms)

• 82W RMS x 4 channels at 2 ohms, 14.4V supply and 

1% THD + N

• 162W RMS x 2 channels at 4 ohms, 14.4V supply and 

1% THD + N

• Dynamic power: 145W at 2 ohms

• 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): 12" x 10" x 2-1/4"

• Fuses: 25A x 2

SPECIFICATIONS

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