Yamaha RX-V663 - Manual (Page 18)

Connections
Connecting speakers
Be sure to connect the left channel (L), right channel (R), “+” (red) and (black) properly. If the connections are faulty,
this unit cannot reproduce the input sources accurately.
Caution
• Before connecting the speakers, make sure that the AC power plug is disconnected from the AC wall outlet.
• Do not let the bare speaker wires touch each other or let them touch any metal part of this unit. This could damage
this unit and/or the speakers. If the speaker wires are short-circuited, “CHECK SP WIRES” appears in the front
panel display when you turn on this unit.
• Use the magnetically shielded speakers. If this type of speaker still creates interference with the monitor, place the
speakers away from the monitor.
• If you are to use 6 ohm speakers, be sure to set “SP IMP.” to “6Q MIN” before using this unit (see page 28). 4 ohm
speakers can be also used as the front speakers. For details about the speaker impedance setting, see page 106.
Note
A speaker cord is actually a pair of insulated cables running side by side. Cables are colored or shaped differently, perhaps with a stripe,
groove or ridge. Connect the striped (grooved, etc.) cable to the “+” (red) terminals of this unit and your speaker. Connect the plain cable
to the (black) terminals.
■ For the 7.1 -channel speaker setting
Right Left
Front speakers
(FRONT A)
Right Left Right Left
Surround speakers Surround back speakers
U E n