JBL J CENTER II User Manual / Operation Manual ▷ View online
J CenterII
J40
J40
simple setup guide
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and reproduction, from live performances to monitoring the
recordings you play in your home, car, or office.
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J CenterII/J40Bk OM 7/23/98 9:40 AM Page 1
On TV.
Mounting Options
J40
On shelves.
J40
J CenterII
one.
Speaker Placement
J CenterII
On wall.
The customer is responsible
for proper selection and use
of mounting hardware, avail-
able through hardware stores,
to properly and safely wall-
mount the speakers.
The customer is responsible
for proper selection and use
of mounting hardware, avail-
able through hardware stores,
to properly and safely wall-
mount the speakers.
two.
Speaker Connections
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
J CenterII/J40Bk OM 7/23/98 9:40 AM Page 2
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
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.
your receiver/amplifier has
other surround modes you
may use.
If there is no sound from
the center speaker, check
the following:
the center speaker, check
the following:
• Make sure that your
receiver’s Center Channel
Mode is in the “normal” or
“wide” position. If it is in
the “phantom” position, the
center speaker will not play.
• Check all connections
between processor/amplifier
and the center speaker.
receiver’s Center Channel
Mode is in the “normal” or
“wide” position. If it is in
the “phantom” position, the
center speaker will not play.
• Check all connections
between processor/amplifier
and the center speaker.
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 o f
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 o f
main speakers is being used,
check the minimum imped-
ance requirements of your
receiver/amplifier.
Troubleshooting
J CenterII/J40Bk OM 7/23/98 9:40 AM Page 3
JBL Cons u mer Pro duc t s
80 Crossways Park West, Wo o d b u r y, NY 11 797
8500 Balboa Boulevard, No r t h r idge, CA 9132 9
w w w. j b l . c o m
80 Crossways Park West, Wo o d b u r y, NY 11 797
8500 Balboa Boulevard, No r t h r idge, CA 9132 9
w w w. j b l . c o m
©
1997 JBL, Inc o r p o ra t e d. JBL is a re g i s t e re d
t ra de mark of JBL, Inc o r p o ra t e d.
* Tra de mark of Dolby Labora t o r ie s.
8/97
* Tra de mark of Dolby Labora t o r ie s.
8/97
Part No. 15-30-4240-00
Specifications
*The maximum recommended
amplifier power rating will
ensure proper system head-
room to allow for occasional
peaks. We do not recommend
sustained operation at these
maximum power levels.
amplifier power rating will
ensure proper system head-
room to allow for occasional
peaks. We do not recommend
sustained operation at these
maximum power levels.
Occasional refinements may
be made to existing products
without notice, but will
always meet or exceed origi-
nal specifications unless
otherwise stated.
be made to existing products
without notice, but will
always meet or exceed origi-
nal specifications unless
otherwise stated.
J CenterII
J40
High-Frequency Transducer:
2-1/2" fiber cone
1/2" poly dome
Low Frequency
(high-polymer laminate):
(high-polymer laminate):
4-1/2" (2)
4-1/2"
Crossover Frequency:
7.5kHz
9.0kHz
Frequency Response (–6dB):
90Hz – 20kHz
100Hz – 20kHz
Sensitivity (1 watt/1 meter):
90dB
90dB
Nominal Impedance:
8 ohms
8 ohms
Recommended Maximum
Power Handling*:
Power Handling*:
100 watts
50 watts
Dimensions (H x W x D):
6 x 18-1/2 x 5-7/8"
8-11/16 x 5-7/8 x 5-1/4"
152 x 470 x 149mm
221 x 149 x 133mm
Weight:
10 lbs/4.5 kg
5 lbs/2.3 kg
J CenterII/J40Bk OM 7/23/98 9:40 AM Page 4
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