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System Configuration
15
ENGLISH
When all audio, video and system
connections 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 and Placement
The placement of speakers in a multi
channel home theater system can have a
noticeable impact on the quality of sound
reproduced. For Home THX operation it is
recommended that the speakers carry the
certification mark of Lucasfilm Ltd.’s
Home THX Division. However, with
careful selection and placement, the AVR
80 will deliver accurate reproduction with
any high quality speakers.
No matter which type or brand of
speakers are 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 mis-matched front
channel speakers.
For the most accurate and exciting
reproduction of bass frequencies a
separate subwoofer should be used. When
THX Certified front channel speakers are
used a separate subwoofer is mandatory,
as THX front and center speakers are not
designed for extreme low frequencies.
The AVR80 may be used with either
conventional (point source) surround
speakers or with THX Certified diffuse
surround speakers. No adjustment is
needed to select the type of surround
speaker used.
Speaker Placement
For best imaging, it is recommended that
the center channel speaker be placed in
line with the left and right speakers. It
should be placed above the center of TV
monitor or rear screen projector, with the
speaker as close to the top of the screen as
possible. If possible, adjust all front
speakers to aim at ear height when seated
in the listening position. Once the center
speaker is positioned, adjust the height of
the left and right speakers so the tweeter
of those speakers is no more than 60cm
off center from the tweeter on the center
channel speaker.
Note that many THX Certified speakers
must be placed vertically, while others
may be placed horizontally. Consult the
instruction manual accompanying your
center speaker for the correct mounting
position.
Right Front
Speaker
Left Front
Speaker
No more
than
60cm
Center Front Speaker
Right Front
Speaker
Left Front
Speaker
Center Front
Speaker
Right
Front
Speaker
Left
Front
Speaker
No more
than
60cm
Center Front
Speaker
A) Front Channel Speaker Installation
with Direct View TV Sets or Rear Screen
Projectors
B) Front Channel Speaker Installation with
Non-Perforated Front Projection Screen
C) Front Channel Speaker Installation with
Center Speaker behind a Perforated Front
Projection Screen
AVR80 manual 11/01/98 13:01 Side 15