JBL SCS 120 Sub (serv.man2) User Manual / Operation Manual ▷ View online
+ –
+ –
+ –
– +
+ –
– +
– +
– +
+ –
Receiver
Subwoofer
Left
Surround
Right
Surround
Left Front
sat20
Right Front
sat20
Center
Left
Front
Left
Surround
Right
Front
Right
Surround
Left Right
Output to Satellite
Input from Amplifier
Left Right
+ –
Center
Speaker
+
–
+
–
+
–
+
–
two.
Speaker Connections
For satellites, thread speaker
wire through the hole in the
bottom of the speaker, then
feed it through the recessed
wire channel.
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 (+)
and (–) terminals. It is impor-
tant to connect both speakers
the speaker wire as shown.
Speakers and electronics ter-
minals have corresponding (+)
and (–) terminals. It is impor-
tant to connect both speakers
identically: (+) on the speaker
to (+) on the amplifier and (–)
on the speaker to (–) on the
amplifier. Wiring “out of phase”
results in thin sound, weak
bass and a poor stereo image.
to (+) on the amplifier and (–)
on the speaker to (–) on the
amplifier. Wiring “out of phase”
results in thin sound, weak
bass and a poor stereo image.
Connection Tips
Speaker level
SCS120 Simply Cinema OM 7/20/98 12:39 PM Page 5
three.
Operation
ON
AUTO
OFF
POWER
Typical Receiver
ON
AUTO
OFF
ON
AUTO
OFF
Level
Level
Power
Volume
+ –
+ –
+ –
– +
– +
Receiver
Subwoofer
Out
Front
Left
Rear
Left
Front
Right
Right
Rear
Right
Subwoofer
Left
Surround
Right
Surround
Left Front
sat20
Right Front
sat20
+ –
Center
Speaker
+
–
+
–
+
–
+
–
R L
R L
Center
Input
Line level
Note: Some receivers/
amplifiers have a single
(mono) subwoofer output. In
this case, it is recommended
that you use a “Y”-connector
(not included) to maximize
the subwoofer’s performance.
amplifiers have a single
(mono) subwoofer output. In
this case, it is recommended
that you use a “Y”-connector
(not included) to maximize
the subwoofer’s performance.
SCS120 Simply Cinema OM 7/20/98 12:39 PM Page 6
SCS120 System
Frequency Response
40Hz – 20kHz (
40Hz – 20kHz (
±
3dB)
sat20
Recommended Power
10 – 120 watts
Frequency Response
120Hz – 20kHz (
10 – 120 watts
Frequency Response
120Hz – 20kHz (
±
3dB)
Impedance
8 ohms nominal
Sensitivity
90dB @ 1 watt/1 meter
Crossover Frequency
3.5kHz (midrange to tweeter)
Tweeter
One 3/4" titanium composite
dome, video-shielded
Midrange
Two 3-1/2" neodymium
drivers, video-shielded
Dimensions (HxWxD)
14 x 4-3/8 x 6 inches
356 x 111 x 152mm
Weight
3.5 lbs/1.6 kg
8 ohms nominal
Sensitivity
90dB @ 1 watt/1 meter
Crossover Frequency
3.5kHz (midrange to tweeter)
Tweeter
One 3/4" titanium composite
dome, video-shielded
Midrange
Two 3-1/2" neodymium
drivers, video-shielded
Dimensions (HxWxD)
14 x 4-3/8 x 6 inches
356 x 111 x 152mm
Weight
3.5 lbs/1.6 kg
bass20
Amplifier
150 watts RMS
Frequency Response
40Hz – 120Hz (
150 watts RMS
Frequency Response
40Hz – 120Hz (
±
3dB)
Crossover Frequency
120Hz (subwoofer to satellite)
Bass
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
120Hz (subwoofer to satellite)
Bass
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
Specifications
Refinements may be made on
occasion to existing products
without notice, but will always
meet or exceed original speci-
fications unless otherwise
stated.
occasion to existing products
without notice, but will always
meet or exceed original speci-
fications unless otherwise
stated.
If there is no sound from
any of the speakers, check
the following:
any of the speakers, check
the following:
• Receiver/amplifier is on and
a source is playing.
• 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.
• Review proper operation of
your receiver/amplifier.
a source is playing.
• 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.
• Review proper operation of
your receiver/amplifier.
If there is no sound coming
from one speaker, check the
following:
from one speaker, 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.
on your receiver/amplifier.
• 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.
speaker wires are frayed, cut,
or punctured.
If the system plays at low
volumes but shuts off as
volume is increased, check
the following:
volumes but shuts off as
volume is increased, 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
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.
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.
If there is low bass output,
check the following:
check the following:
• Make sure the connections
to the left and right “Speaker
Inputs” have the correct
polarity (+ and –).
to the left and right “Speaker
Inputs” have the correct
polarity (+ and –).
• 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.
woofer is plugged into an
active electrical outlet.
• Powered subwoofer is
plugged in and is either in
the “On” or “Auto” position.
If there is no sound from
the surround speakers,
check the following:
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
speaker wires are frayed, cut,
or punctured.
• 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.
nections between receiver/
amplifier and speakers. Make
sure all wires are connected.
Make sure none of the
speaker wires are frayed, cut,
or punctured.
• 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.
Troubleshooting
SCS120 Simply Cinema OM 7/20/98 12:39 PM Page 7
©
1997 JBL, Incorporated. JBL and Simply Cinema
are registered trademarks of JBL, Incorporated.
*Trademark of Dolby Laboratories.
Printed in USA 2/97
*Trademark of Dolby Laboratories.
Printed in USA 2/97
Part No. SCS1200M
C
E
L E
B R A T I N
G
5
0
Y E A
R
S
A Harman International Company
SCS120 Simply Cinema OM 7/20/98 12:39 PM Page 8
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