Yamaha RX-V667 Owner's Manual page 125

Center s peaker
Connecting speakers
Snbwoofer
Connect when using with 7.1-channel speaker layout.
Connect when using with 6.1-channel speaker layout.
Caution:
When connecting the presence speakers, refer to "Presence speaker
connection" in the Owner's Manual.
This unit can connect speakers that support Bi-amp connection for front
speakers. Refer to "Bi-amp connection" in the Owner's Manual for the
details.
Remove approximately 10 mm (0.4 in) of
insulation from the ends of the speaker cables,
and twist the bare wires of the cables together
firmly so that they will not cause short circuits.
Loosen the speaker terminals.
Connecting the banana plug
Tighten the knob, and then insert the banana plug
into the end of the terminal.
Insert the bare wire of the speaker cable into the
gap on the side of the terminal.
Tighten the terminal.
Connecting the subwoofer
Connect the subwoofer input jack to the SUBWOOFER
1 or 2 jack on this unit with an audio pin cable.
Set the subwoofer volume as follows.
Volume: Set to approximately half volume (or slightly less than half).
Crossover frequency (if available): Set to maximum.
Sghwooferexamples
-3-