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If there is no sound from any of
the speakers:
• Check that receiver/amplifier

is on and a source is playing.

• Check all wires and

connections 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 “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 none of the
speaker wires are frayed, cut
or punctured.

• In Dolby Digital or DTS

®

modes, make sure that the
receiver/processor is
configured so that the
speaker in question is
enabled.

If there is no sound from the
center speaker:
• Check all wires and

connections between
receiver/
amplifier and speaker. Make
sure all wires are connected.
Make sure none of the
speaker wires are frayed, cut
or punctured.

• If your receiver/processor is

set in Dolby Pro Logic mode,
make sure the center speaker
is not in phantom mode.

• If your receiver/processor 

is set in Dolby Digital or DTS

®

mode, make sure the
receiver/processor is con-
figured so that the center
speaker is enabled.

If the system plays at low
volumes but shuts off as
volume is increased:
• Check all wires and connecti-

ons 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 impedance
requirements of your
receiver/amplifier.

If there is low (or no) bass 
output:
• Make sure the connections to

the left and right “Speaker
Inputs” have the correct
polarity (+ and –).

• If a powered subwoofer is

used, make sure that the
subwoofer is plugged in and
turned on.

• In Dolby Digital or DTS

®

modes, make sure your
receiver/processor is
configured so that the
subwoofer and LFE output are
enabled.

If there is no sound from the
surround speakers:
• Check all wires and

connections 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 a surround-sound
mode. If it is not, check to see
if your receiver/ amplifier has
other surround modes you
may use.

• In Dolby Digital or DTS

®

modes, make sure your
receiver/processor is
configured so that the
surround speakers are
enabled.

• Review the operation of your

DVD player and the jacket of
your DVD to make sure that
the DVD features the desired
Dolby Digital or DTS

®

mode,

and that you have properly
selected that mode using both
the DVD player’s menu and
the DVD disc’s menu.

JBL Consumer Products

250 Crossways Park Drive, Woodbury, NY 11797

www.jbl.com 

©2001 JBL, Incorporated. 

JBL is a registered trademark of JBL, Incorporated.

Part No.1111-SCS178

Refinements may be made on occasion to existing products without notice, but will always meet
or exceed original specifications unless otherwise stated.
Simply Cinema is a registered trademark of JBL, Incorporated. 

* Dolby and Pro Logic are trademarks of Dolby Laboratories.

DTS

®

is a registered trademark of Digital Theater Systems, Inc.

Frequency Response(-6dB):

100Hz – 22kHz

Sensitivity (2.83V/1m):

88dB

Nominal Impedance:

4 Ohms

Recommended Amplifier Power

25 – 100 Watts RMS per Channel

Drive Units:

12mm Polyamide/Titanium Laminate Video-shielded HF
Dual 100mm Paper Cone Video-shielded Mid/Bass

Dimensions (H x W x D):

145mm x 402mm x 155mm (5.7" x 15.8" x 6.1")

Weight:

4.5kg (9.9lb)

DESIGN GOAL: Bring the thrill of live performance and movie sound to the
home environment by calling on JBL’s professional engineering leadership.

SATELLITE TYPE:Titanium-laminate-dome tweeter, reflex-loaded enclosure

PROFESSIONAL REFERENCE: Cinema Loudspeaker Series

JBL Consumer Products

250 Crossways Park Drive, Woodbury, NY 11797

www.jbl.com 

©2001 JBL, Incorporated. 

JBL is a registered trademark of JBL, Incorporated.

Part No.1111-SCS178

Refinements may be made on occasion to existing products without notice, but will always meet
or exceed original specifications unless otherwise stated.
Simply Cinema is a registered trademark of JBL, Incorporated. 

* Dolby and Pro Logic are trademarks of Dolby Laboratories.

DTS

®

is a registered trademark of Digital Theater Systems, Inc.

Frequency Response(-6dB):

100Hz – 22kHz

Sensitivity (2.83V/1m):

88dB

Nominal Impedance:

4 Ohms

Recommended Amplifier Power

25 – 100 Watts RMS per Channel

Drive Units:

12mm Polyamide/Titanium Laminate Video-shielded HF
Dual 100mm Paper Cone Video-shielded Mid/Bass

Dimensions (H x W x D):

145mm x 402mm x 155mm (5.7" x 15.8" x 6.1")

Weight:

4.5kg (9.9lb)

DESIGN GOAL: Bring the thrill of live performance and movie sound to the
home environment by calling on JBL’s professional engineering leadership.

SATELLITE TYPE:Titanium-laminate-dome tweeter, reflex-loaded enclosure

PROFESSIONAL REFERENCE: Cinema Loudspeaker Series

JBL Consumer Products

250 Crossways Park Drive, Woodbury, NY 11797

www.jbl.com 

©2001 JBL, Incorporated. 

JBL is a registered trademark of JBL, Incorporated.

Part No.1111-SCS178

Refinements may be made on occasion to existing products without notice, but will always meet
or exceed original specifications unless otherwise stated.
Simply Cinema is a registered trademark of JBL, Incorporated. 

* Dolby and Pro Logic are trademarks of Dolby Laboratories.

DTS

®

is a registered trademark of Digital Theater Systems, Inc.

Frequency Response(-6dB):

100Hz – 22kHz

Sensitivity (2.83V/1m):

88dB

Nominal Impedance:

4 Ohms

Recommended Amplifier Power

25 – 100 Watts RMS per Channel

Drive Units:

12mm Polyamide/Titanium Laminate Video-shielded HF
Dual 100mm Paper Cone Video-shielded Mid/Bass

Dimensions (H x W x D):

145mm x 402mm x 155mm (5.7" x 15.8" x 6.1")

Weight:

4.5kg (9.9lb)

DESIGN GOAL: Bring the thrill of live performance and movie sound to the
home environment by calling on JBL’s professional engineering leadership.

SATELLITE TYPE:Titanium-laminate-dome tweeter, reflex-loaded enclosure

PROFESSIONAL REFERENCE: Cinema Loudspeaker Series