JBL CS680 (230V) - Manual (Page 4)

4
PLACEMENT
Left and Right Front Channels
For left and right front channels, place one satellite to the left
and another to the right of the television, as shown in Figure 1.
Since the speakers are magnetically shielded, you can place
them very close to the TV without worrying about the magnetic
field distorting the picture.
Center Channel
For the center channel, place the speaker directly on top of,
or below, your television. Use a shelf or one of the included wall
brackets if the television does not provide a stable platform.
Surround Channels
For left and right surround channels, place one speaker on the left
and another on the right, to the side of or slightly behind the listening
area. The surround speakers should be mounted at a height of
between 1.5m (5 ft.) and 2m (7 ft.).
Subwoofer
Since the installation of a subwoofer can be somewhat more
complicated than installing full-range speakers, it is essential that
you read this section very carefully prior to connecting the
subwoofer to your system. Should you have questions relating to
installation, it is advisable to call either your dealer or JBL’s
Customer Service Department for advice.
The performance of the subwoofer is directly related to its
placement in the listening room and how the subwoofer is aligned
with the satellite speakers. Setting the volume of the subwoofer in
relation to the left and right speakers is also of critical importance
because it’s essential that the subwoofer integrate smoothly with the
entire system. Setting the subwoofer’s volume level too high will
result in an overpowering, boomy bass. Setting the volume level too
low will negate the benefits of the subwoofer.
Here are several additional facts on installation that may prove
useful. It is generally believed that low frequencies (below 125Hz)
are nondirectional and, therefore, placement of a subwoofer within
any listening room is not critical. While in theory it is true that the
larger wavelengths of extremely low frequencies are basically
nondirectional, the fact is that, when installing a subwoofer within
the limited confines of a room, reflections, standing waves and
absorptions generated within the room will strongly influence the
performance of any subwoofer system. As a result, specific location
of the subwoofer becomes important, and we strongly recommend
that you experiment with placement before choosing a final location.
Placement will depend upon your room (for example, whether or not
your room permits placement of the subwoofer near either satellite)
and the amount and quality of bass required.
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