JBL Speaker System SCS120 User Manual

SCS120  
simple  
set-up guide  
thank you  
for choosing JBL. For over 50 years, JBL  
has been involved in every aspect of musical and film recording  
and reproduction, from live performances to monitoring the  
recordings you play in your home, car, or office.  
We’re confident that the JBL system you have chosen will  
provide every note of enjoyment that you expected – and that  
when you think about purchasing additional audio equipment for  
your home, car, or office, you will once again choose JBL.  
Please take a moment to complete the enclosed profile card.  
It enables us to keep you posted on our latest advancements,  
and helps us to better understand our customers and build  
products that meet your needs and expectations.  
JBL Consumer Products  
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included  
Two satellite speakers.  
One 150-watt powered  
subwoofer.  
One sat20 center speaker with  
removable wall-mounting  
bracket.  
One pair of sat20 surround  
speakers with removable  
wall-mounting brackets.  
features  
• Dolby* Digital Ready  
• Adjustable, removable wall-  
mounting brackets (for use  
with surround speakers)  
• Recessed wire channels on  
satellites and surrounds  
• 2-way satellite and surround  
speakers with 3/4" titanium  
composite dome high-  
frequency drivers  
• Diffraction-limiting foam  
satellite baffles  
• Video-shielded satellites  
• 150-watt powered bass reflex  
with dual 8" drivers  
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one.  
Satellites  
Speaker Placement  
Center  
Subwoofer  
0-2 ft.  
Surround Speakers  
5
– 6 ft.  
Mounting Options  
Satellites  
On shelves.  
On the wall. Optional bracket.  
Part No. SFX20BKT, or  
On optional stands.  
Part No. FS10/20.  
SFX20BKTWHT (white).  
FS10/20WHT (white).  
Surrounds  
On optional stands.  
On shelves.  
Wall-mounted. Brackets and  
hardware included.  
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two.  
Speaker Connections  
Connection Tips  
For satellites, thread speaker  
wire through the hole in the  
bottom of the speaker, then  
feed it through the recessed  
wire channel.  
Separate and strip the ends of  
the speaker wire as shown.  
Speakers and electronics ter-  
minals have corresponding (+) amplifier. Wiring “out of phase”  
and (–) terminals. It is impor- results in thin sound, weak  
identically: (+) on the speaker  
to (+) on the amplifier and (–)  
on the speaker to (–) on the  
tant to connect both speakers  
bass and a poor stereo image.  
Speaker level  
Center  
Speaker  
Right Front  
sat20  
Left Front  
sat20  
+
+
+
Subwoofer  
+
+
Left  
Right  
Output to Satellite  
Input from Amplifier  
Left  
Right  
+
+
Receiver  
Center  
Left  
Front  
Right  
Front  
+
+
+
Left  
Surround  
Right  
Surround  
Left  
Surround  
Right  
Surround  
+
+
+
+
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Line level  
Left Front  
sat20  
Center  
Speaker  
Right Front  
sat20  
+
+
+
Subwoofer  
Input  
Note: Some receivers/  
R
L
amplifiers have a single  
Receiver  
(mono) subwoofer output. In  
this case, it is recommended  
that you use a “Y”-connector  
(not included) to maximize  
the subwoofer’s performance.  
Front  
Left  
Front  
Right  
Subwoofer  
Out  
+
+
R
L
Rear  
Left  
Rear  
Right  
Center  
+
+
+
Left  
Surround  
Right  
Surround  
+
+
three.  
Power  
Operation  
ON  
ON  
Typical Receiver  
AUTO  
AUTO  
OFF  
OFF  
POWER  
ON  
AUTO  
OFF  
Volume  
Level  
Level  
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Troubleshooting  
If there is no sound from  
any of the speakers, check  
the following:  
Make sure none of the  
speaker wires are frayed, cut,  
or punctured.  
• Make sure that the sub-  
woofer is plugged into an  
active electrical outlet.  
• Powered subwoofer is  
plugged in and is either in  
the “On” or “Auto” position.  
• Receiver/amplifier is on and  
a source is playing.  
If the system plays at low  
volumes but shuts off as  
volume is increased, check  
the following:  
• Powered subwoofer is  
plugged in and is either in  
the “On” or “Auto” position.  
• Check all wires and con-  
nections between receiver/  
amplifier and speakers. Make  
sure all wires are connected.  
Make sure none of the speaker  
wires are frayed, cut, or  
punctured.  
If there is no sound from  
the surround speakers,  
check the following:  
• Check all wires and con-  
nections between receiver/  
amplifier and speakers. Make  
sure all wires are connected.  
Make sure none of the  
• Check all wires and con-  
nections between receiver/  
amplifier and speakers. Make  
sure all wires are connected.  
Make sure none of the  
speaker wires are frayed, cut,  
or punctured.  
• If more than one pair of  
main speakers is being used,  
check the minimum imped-  
ance requirements of your  
receiver/amplifier.  
speaker wires are frayed, cut,  
or punctured.  
• Review proper operation of  
your receiver/amplifier.  
• Review proper operation of  
your receiver/amplifier and its  
surround sound features.  
• Make sure the movie or TV  
show, you are watching is  
recorded in Dolby surround. If  
it is not, check to see if your  
receiver/amplifier has other  
surround modes you may use.  
If there is no sound coming  
from one speaker, check the  
following:  
If there is low bass output,  
check the following:  
• Check the “Balance” control  
on your receiver/amplifier.  
• Check all wires and con-  
nections between receiver/  
amplifier and speakers. Make  
sure all wires are connected.  
• Make sure the connections  
to the left and right “Speaker  
Inputs” have the correct  
polarity (+ and –).  
Specifications  
SCS120 System  
sat20  
Recommended Power  
10 – 120 watts  
bass20  
Frequency Response  
Amplifier  
40Hz – 20kHz (±3dB)  
150 watts RMS  
Frequency Response  
120Hz – 20kHz (±3dB)  
Impedance  
8 ohms nominal  
Sensitivity  
Frequency Response  
40Hz – 120Hz (±3dB)  
Crossover Frequency  
120Hz (subwoofer to satellite)  
Bass  
90dB @ 1 watt/1 meter  
Crossover Frequency  
3.5kHz (midrange to tweeter)  
Tweeter  
One 3/4" titanium composite  
dome, video-shielded  
Midrange  
Dual 8" woofers, bass reflex  
enclosure  
Dimensions (HxWxD)  
17-3/4 x 10 x 24 inches  
451 x 254 x 610mm  
Weight  
42 lbs/19.1 kg  
Two 3-1/2" neodymium  
drivers, video-shielded  
Dimensions (HxWxD)  
14 x 4-3/8 x 6 inches  
356 x 111 x 152mm  
Weight  
Refinements may be made on  
occasion to existing products  
without notice, but will always  
meet or exceed original speci-  
fications unless otherwise  
stated.  
3.5 lbs/1.6 kg  
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JBL Consumer Products  
80 Crossways Park West, Woodbury, NY 11797  
8500 Balboa Boulevard, Northridge, CA 91329  
1-800-336-4JBL (4525) (USA only)  
1997 JBL, Incorporated. JBL and Simply Cinema  
are registered trademarks of JBL, Incorporated.  
*Trademark of Dolby Laboratories.  
©
Printed in USA 2/97  
Part No. SCS1200M  
A Harman International Company  
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