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34230-AVR75 Engelsk 03/03/1998 14:19 Side 17
When all audio, video and system con-
nections have been made, there are a few
configuration adjustments to be made. A
few minutes spent to correctly configure
and calibrate the unit will greatly add to
your listening experience.
Speaker Selection
No matter which type or brand of speakers
is used, the same model or brand of speaker
should be used for the front left, center and
right speakers. This creates a seamless front
soundstage, and eliminates the possibility
of distracting sonic disturbances that occur
when a sound moves across mismatched
front channel speakers.
Speaker Placement
The placement of speakers in a multi-
channel home theater system can have a
noticeable impact on the quality of sound
reproduced.
Depending on the type of center channel
speaker in use and your viewing device,
place the center speaker directly above or
below your TV or in the center behind a
perforated front projection screen.
Once the center channel speaker is
installed, position the left and right front
speakers so that they are as far away
from one another as the center channel
speaker is from the preferred listening
position. Ideally, the front channel
speakers should be placed so that their
tweeters are no more than 60cm higher
or lower than the tweeter in the center
channel speaker. They should also be at
least 0.5 meters from the TV set to avoid
interference as the front speakers are
usually not magnetically shielded
Depending on the specifics of your room
acoustics and the type of speakers in use,
you may find that imaging is improved by
System Configuration
17
moving the front left and right speakers
slightly forward of the center channel
speaker. If possible, adjust all front
loudspeakers so that they are aimed at
ear height when you are seated in the
listening position.
Using these guidelines, you'll find that it
takes some experimentation to find the
correct location for the front speakers in
your particular installation. Don't be
afraid to move things around until the
system sounds correct. Optimize your
speakers so that pans across the front of
the room sound smooth, and that sounds
from all speakers appear to arrive at the
listening position at the same time
without delay from the center speaker as
opposed to the left and right speakers.
Surround speakers should be placed on
the side walls of the room, at or slightly
behind the listening position. The center
of the speaker should face into the room.
The speakers should be located so that
the bottom of the cabinet is at least
60cm higher than the listeners' ears
when in the desired area.
If side wall mounting is not practical, the
speakers may be placed on a rear wall,
behind the listening position. Again, they
should be located so that the bottom of
the cabinet is at least 60cm higher than
the listeners' ears. The speakers should
be no more than 2 meters behind the
rear of the seating area.
Subwoofers produce non-directional
sound, so they may be placed almost
anywhere in a room. Subwoofer
placement is highly influenced by room
size and shape, and the type of subwoofer
used. Follow the instructions of the
subwoofer's manufacturer, or experiment
with the best location for a subwoofer in
your listening room.
Center Front Speaker
No more
than 60cm
Left Front Speaker
Right Front Speaker
A) Front Channel Speaker Installation
with Direct View TV Sets or Rear Screen
Projectors
TV or Projection Screen
Center Front
Left Front
Right Front
Speaker
Speaker
Speaker
Optional Rear Wall Mounting
B) The distance between the left and right
speakers should be equal to the distance
from the seating position to the viewing
screen. You may also experiment with
placing the left and right speakers slightly
forward of the center speaker.
At least 15cm from ceiling
At least 60cm
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