Sony STR-DA7100ES - Manual (Page 90)

90 GB
This mode lets you specify the type of
decoding for 2 channel audio sources.
1
Press SOUND FIELD.
The sound field list appears.
2
Move the easy scroll key to
select an A.F.D. mode, then
press the key to enter the
selection.
You can also use A.F.D. on the receiver.
Enjoying stereo sound in multi
channel
1
2