Sony STR-DN1080 Operating Instructions Manual page 21

5.1.2-channel speaker system using top middle speakers
 30˚  100˚ – 120˚
Surround speakers Center speaker
Top middle speakers* Front speakers
Subwoofer
 Monaural audio cable (not supplied)
 Speaker cable (not supplied)
* After you have made the connection, set [Speaker Pattern] in [Speaker Settings] to [5.1.2 (TM)].
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