After you have made the bi-amplifier connection, set [Surround Back Speaker Assign] to [BI-AMP] in the [Speaker Settings] menu.
Note
After you have installed and connected your speakers, set the [Manual Speaker Settings] - [Speaker Pattern] to [5.1.2(TM)] in the [Speaker Settings] menu.
You can only set [Surround Back Speaker Assign] if a speaker pattern in which speakers are not connected to the SURROUND BACK (FRONT B/BI-AMP/ZONE 2) terminals (for STR-
AZ7000ES/STR-AZ5000ES) or SURROUND BACK (HEIGHT 2/FRONT B/BI-AMP/ZONE 2) terminals (for STR-AZ3000ES) is selected.
Connect speaker cables properly with the polarities (+/–) matched between the speaker cables and the SPEAKERS terminals.
Related Topic
Speaker installation example
Installing 5.1.2-channel speaker system with bi-amplifier connection
Selecting the speaker pattern (Speaker Pattern)
Assigning the surround back speaker terminals (Surround Back Speaker Assign)