Sony STR-AZ7000ES Help Manual page 51

Monaural audio cable (not supplied)
Speaker cable (not supplied)
Note
After you have installed and connected your speakers, set the [Manual Speaker Settings] - [Speaker Pattern] to [7.1.2(TM)] in the [Speaker Settings] menu.
Connect speaker cables properly with the polarities (+/–) matched between the speaker cables and the SPEAKERS terminals.
Related Topic
Speaker installation example
Installing 7.1.2-channel speaker system with two center speakers (for STR-AZ7000ES/STR-AZ5000ES)
Selecting the speaker pattern (Speaker Pattern)
Notes on connecting cables
How to connect speaker cables
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