Sony 4-147-228-12(1) Operating Instructions Manual page 17

To add the optional surround back speakers
You can enjoy 7.1 surround sound by purchasing the Wireless Surround Speaker Kit (WAHT-SBP1,
optional). The optional product lineup differs depending on the area.
For the position of the surround back speakers, refer the illustration below (C).
Front left speaker (L)
Surround left
speaker (L)
Surround back left speaker (L)
(optional)
Center speaker
Subwoofer
30 30
45
C
Front right speaker (R)
Surround right
speaker (R)
45
C
Surround back right speaker (R)
(optional)
17
US