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Tower Models: The Tower models
cabinet height and driver placement
allow for speaker placement directly
on the floor. The video shielding of
the Tower models allows for the
option of placement very close to a
Video Monitor/TV. When the Tower
models are used as Left and Right
Channel speakers in a Dolby Pro-
Logic AV system, the shielding allows
the speakers to be placed up against
the sides of the Monitor/TV for a
compact AV system profile (see Fig.
2). If you desire better stereo imag-
ing, the speakers should be moved
further apart from each other, approx-
imately 2 to 3 feet (.75 to 1m) from
the sides of the Monitor/TV.
Center Channel Model: As the
center channel contains the dialog
and other central action sounds, the
speaker should be located very close
to the Monitor/TV and centered with
the Monitor/TV’s center line. Place
the J Center directly on top of or
directly below the Monitor/TV with the
front edge of the speaker grille flush
with the edge of the Monitor/TV. You
should have your Left and Right
speakers within a 2 ft or less height
range of your Center Channel for
proper sonic performance (see Fig. 3).
In Case Color Interference Occurs:
The speaker is shielded to work with
video applications, however some
color interference may be observed
on the TV screen depending on the
type of your TV set. If color interfer-
ence is observed, turn your TV off for
15 minutes and move the speaker
back about 1" from the front edge of
the TV. Turn on TV and recheck. If
this is not far enough, move back fur-
ther and experiment until the interfer-
ence disappears. You may have to
turn the TV off for a few minutes and
turn it on again to clear the screen.
CONNECTIONS
To connect the loudspeaker systems
to the receiver or amplifier, use two-
conductor insulated wire. Your JBL
dealer can recommend suitable
cables, or you can buy wire at most
hardware or electronic stores. We
recommend #16 AWG wire as a mini-
mum size. If your speaker is more
than 30 feet (10m) from your receiver
or amplifier, use larger diameter
lower gauge wire. Connections are
made at the terminals located on the
back of the J Series speakers.
Preparing the Hookup Wire
Carefully plan your wire lengths
before cutting any speaker wire.
Be sure to allow plenty of extra
wire to help hide paths in corners,
along baseboards, etc.
1. For Left and Right Speakers, first
determine the wire length needed
between the most distant speaker
and the receiver or amplifier.
J SERIES LOUDSPEAKERS
3
Fig. 2
(2 ft. or less)
(2 ft. or less)
Fig. 3
J Series OM 7/27/98 3:50 PM Page 3
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