JBL JBL1920II Center User manual

JBL1920II Center
JBL1920II Rear
simple setup 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 to build
products that meet their needs and expectations.
JBL Consumer Products
MR CenterII/M4 OM 7/17/98 3:38 PM Page 1

On TV.
Mounting Options
JBL1920II Rear
On shelves.
JBL1920II Rear
5– 6 ft.
JBL1920II Center
one. Speaker Placement
0-2 ft.
JBL1920II Center
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.
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
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.
Connection Tips
MR CenterII/M4 OM 7/17/98 3:38 PM Page 2

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
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.
If there is no sound from
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.
If the system plays at low
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-
impedance requirements of
your receiver/amplifier.
Troubleshooting
– + – +
– +
+ –
+ –
Receiver
Left
JBL1920II Rear
Right
JBL1920II Rear
Center
Front
Left
Left
Surround
Front
Right
Right
Surround
– +
JBL1920II Center
– +– +
MR CenterII/M4 OM 7/17/98 3:38 PM Page 3

JBL Consumer Products
250 Crossways Park Drive, Woodbury, NY 11797
8500 Balboa Boulevard, Northridge, CA 91329
www.jbl.com
©1997 JBL, Incorporated. JBL is a registered
trademark of JBL, Incorporated.
*Trademark of Dolby Laboratories.
12/97 Part No. 1920IICENTER/REAROM
Declaration of Conformity
We, JBL Europe A/S
Kongevejen 194B
DK-3460 Birkerød
DENMARK
declare in own responsibility, that the products described
in this owner’s manual are in compliance with technical
standards:
EN 50 081-1/1992
EN 50 082-1/3.1995
Steen Michaelsen
JBL Europe A/S
Birkerød. DENMARK. 12/97
C
E
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B
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5
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S
A Harman International Company
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.
Occasional refinements may
be made to existing products
without notice, but will
always meet or exceed origi-
nal specifications unless
otherwise stated.
JBL1920II Center JBL1920II Rear
High-Frequency Transducer: 2-1/2" fiber cone 1/2" poly dome
Low Frequency
(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*: 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
MR CenterII/M4 OM 7/17/98 3:38 PM Page 4