Pioneer SC-LX81 Operating Instructions Manual page 107

Additional information
Tip
• When adjusting the orientation of the speakers, turn
the speakers with the center of the speakers' baffle
surfaces as the axis so that the speakers' center
positions do not change.
Fig. 2
L
SL
The central axes converge 30 cm to 80 cm
behind the listening position.
Fig. 3
Center of rotation
Examples of recommended speaker layouts based on the
ITU-R (Fig.1) for systems with more than 5.1 channels
• For 7.1-channel systems
L
SL
SBL
The central axes converge 30 cm to 80 cm
behind the listening position.
C
R
SR
Rotation
C
R
SR
SBR
Step 4: Positioning and adjusting the subwoofer
Placing the subwoofer between the center and front
speakers makes even music sources sound more natural
(If there is only one subwoofer, it doesn't matter if it is
placed on the left or right side). The low bass sound
output from the subwoofer is not directional and there is
no need to adjust the height. Normally the subwoofer is
placed on the floor. Put it in a position at which it will not
cancel out the bass sound output from the other
speakers. Also note that placing it near a wall may result
in sympathetic vibrations with the building that could
excessively amplify the bass sound.
If the subwoofer must be installed near a wall, place it at
an angle so that it is not parallel to the wall surface. This
can help reduce any sympathetic vibrations, but
depending on the shape of the room this could result in
standing waves. However, even if standing waves are
generated, their influence on the sound quality can be
prevented using the Auto MCACC's standing wave
control function (page 48).
Tip
• Setting the subwoofer with the line connecting the
woofer (middle and low frequency reproduction
units) sections of the center and front speakers
parallel to the subwoofer's front surface achieves a
more natural, powerful bass sound.
Fig. 4
SW
L
Set the subwoofer parallel to the
connecting line.
(Note that it will be too close if it is
placed directly on the line.)
Step 5: Default settings with the Auto MCACC
Setup (auto sound field correction) function
It is more effective to perform the Auto MCACC Setup
(page 9) procedure once the adjustments described
above have been completed.
Tip
• The distance to the subwoofer may be slightly larger
than the distance actually measured with a tape
measure, etc. This is because this distance is
corrected for electric delay, and is not a problem.
C
R
15
107
En