Yamaha AV Receiver Owner's Manual page 18

CONNECTIONS
FRONT terminals
Connect one or two front speaker systems (1, 2) to these
terminals. If you use only one front speaker system,
connect it to the FRONT A or B terminal.
CENTER terminals
Connect a center speaker (3) to these terminals.
SURROUND terminals
Connect surround speakers (4, 5) to these terminals.
SURROUND BACK terminals
Connect a surround back speaker (6) to these terminals.
SUBWOOFER jack
Connect a subwoofer with a built-in amplifier (7) (such as
the YAMAHA Active Servo Processing Subwoofer
System) to this jack.
14
1
7
2
3
5
Speaker layout
4
6