Pioneer Elite SC-89 Operating Instructions Manual page 168

Left Center/Right Center speaker pair
The Left Center and Right Center speakers should ideally be placed at approximately
15 degrees between the Left and Right speakers and the center-front reference. If
the Left Screen and Right Screen speakers are included in the speaker layout, we
recommend distances between the Left and Right, Left Center and Right Center, Left
Screen and Right Screen, and Center speakers be subdivided and that the Left
Center and Right Center speakers be placed at approximately 30 degrees from the
center-front reference.
Figure 18 shows the range of angles at which the Left Center and Right Center
speakers may be placed.
Rc
Lc
10° 10°
30° 30°
15° 15°
Figure 18: Left Center and Right Center speaker placement.
Left Screen/Right Screen speaker pair
The Left Screen and Right Screen speakers should be placed between the Left Center
and Right Center speakers and the center-front reference. We recommend that the
distances between the Left and Right, Left Center and Right Center, Left Screen and
Right Screen, and Center speakers be subdivided and the Left Screen and Right
Screen speakers be placed at approximately 15 degrees from the center-front
reference.
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