Pioneer Elite SC-89 Operating Instructions Manual page 170

Left Surround 2/Right Surround 2 speaker pair
The Left Surround 2 and Right Surround 2 speakers should be placed between the
Left Surround and Right Surround and Left Rear Surround 1 and Right Rear
Surround 1 speakers at approximately 105 degrees from the center-front reference.
Figure 21 shows the range of angles at which the Left Surround 2 and Right
Surround 2 speakers may be placed.
Ls2/Rs2 Speaker Pair Placement Figure
90° 90°
105° 105°
Ls2 Rs2
120° 120°
Figure 21: Left Surround 2 and Right Surround 2 speaker placement.
Left Rear Surround 1/Right Rear Surround 1 speaker pair
The Left Rear Surround 1 and Right Rear Surround 1 speakers should be placed
between the Left Surround and Right Surround and Left Rear Surround and Right
Rear Surround speakers at approximately 120 degrees from the center-front
reference. If the Left Surround 2 and Right Surround 2 speakers are also included in
the speaker layout, we recommend that the distances between Left Surround and
Right Surround, Left Surround 2 and Right Surround 2, Left Rear Surround 1 and
Right Rear Surround 1, and Left Rear Surround and Right Rear Surround speakers be
subdivided so that the Left Rear Surround 1 and Right Rear Surround 1 speakers are
closer to the Left Rear Surround and Right Rear Surround speakers at approximately
135 degrees from the center-front reference.
Figure 22 shows the range of angles at which the Left Rear Surround 1 and Right
Rear Surround 1 speakers may be placed.
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