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16 INSTALLATION AND CONNECTIONS
Installation and Connections
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
front-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 multichannel
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 either 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-front 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 above or below the
tweeter in the center-channel speaker.
They should also be at least 0.5 meter from your
TV set unless the speakers are magnetically
shielded to avoid colourings on the TV screen.
Note that most speakers are not shielded, even
with complete surround sets only the Center
speaker may be.
Depending on the specifics of your room
acoustics and the type of speakers in use, you
may find that imaging is improved by moving the
front-left and front-right speakers slightly for-
ward 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 audio transitions across
the front of the room sound smooth.
When the AVR is used in 5.1-channel operation,
the preferred location for surround speakers is
on the side walls of the room, at or slightly
behind the listening position.
Subwoofers produce largely nondirectional
sound, so they may be placed almost anywhere
in a room.Actual placement should be based on
room size and shape and the type of subwoofer
used. One method of finding the optimal
location for a subwoofer is to begin by placing it
in the front of the room, about 15 cm from a
wall, or near the front corner of the room.
Another method is to temporarily place the
subwoofer in the spot where you will normally
sit, and then walk around the room until you
find a spot where the subwoofer sounds best.
Place the subwoofer in that spot.You should
also follow the instructions of the subwoofer’s
manufacturer, or you may wish to experiment
with the best location for a subwoofer in your
listening room.
A) Front Channel Speaker Installation with
Direct-View TV Sets or Rear-Screen Projectors
At least 15 cm from celling
At least 60 cm
5.1-Channel System
33639_AVR147_ENG 10/07/07 13:45 Side 16