Yamaha RX-V663 User Guide

■ AC OUTLET(S) (SWITCHED)

U.K. and Australia models ....................................  1 outlet
Korea model ...............................................................None
Other models .........................................................2 outlets

Use these outlet(s) to supply power to any connected 
components. Connect the power cable of your other 
components to these outlet(s). Power to these outlet(s) is 
supplied when the main zone or Zone 2 is turned on. However, 
power to these outlet(s) is cut off when the main zone and 
Zone 2 are turned off or when LSYSTEM OFF on the front 
panel is pressed. For information on the maximum power or 
the total power consumption of the components that can be 
connected to these outlet(s), see “Specifications” on page 124.

The power to AC OUTLET(S) of this unit is not cut off while this 
unit is charging connected iPod even when this unit is in the 
standby mode. When this unit completes charging or the iPod is 
disconnected, the power is cut off automatically when this unit is 
in the standby mode.

Press L

SYSTEM OFF on the front panel to 

turn off this unit.
See page 29 for details.

Press and hold M

TONE CONTROL and 

then press K

MAIN ZONE ON/OFF to turn 

on this unit.
This unit turns on, and the advanced setup menu 
appears in the front panel display.

Rotate the N

PROGRAM selector to select 

“SP IMP.”.
“SP IMP.” and the current speaker impedance setting 
(“8

Ω MIN”) appear in the front panel display.

Press M

TONE CONTROL repeatedly to 

Ω MIN”.

Press L

SYSTEM OFF to save the new 

The setting you made is reflected next time you turn on this 
unit.

Memory back-up
The memory back-up circuit prevents the stored data 
from being lost even if this unit is in the standby mode. 
However, the stored data will be lost in case the power 
cable is disconnected from the AC wall outlet or if the 
power supply is cut off for more than one week.

Caution
If you are to use 6 ohm speakers, set “SP IMP.” to 
“6

Ω MIN” as follows BEFORE using this unit. 4 ohm 

speakers can be also used as the front speakers.