Yamaha AX-492 Manual De Instrucciones página 9

IMPEDANCE SELECTOR switch
Make sure that the power to the unit is off, before you set the
switch.
Select the appropriate setting for your speaker system.
Upper position
4 Ω: If you use either speaker system A or B, the impedance
of each speaker must be 4 Ω, or higher.
8 Ω: If you use both speaker systems A and B at the same
time, the impedance of each speaker must be 8 Ω, or
higher.
Lower position
6 Ω: If you use either speaker system A or B, the impedance
of each speaker must be 6 Ω, or higher.
12 Ω:If you use both speaker systems A and B at the same
time, the impedance of each speaker must be 12 Ω, or
higher.
A OR B : 4Ω MIN. /SPEAKER
A + B : 8Ω MIN. /SPEAKER
A OR B : 6Ω MIN. /SPEAKER
A + B :12Ω MIN. /SPEAKER
WARNING
Do not change the IMPEDANCE SELECTOR switch
setting while the power to this unit is on, otherwise
this unit may be damaged.
IF THIS UNIT FAILS TO TURN ON WHEN THE POWER
SWITCH IS PRESSED
The IMPEDANCE SELECTOR switch may not be set to
either end closely. If so, set the switch to either end
closely.
VOLTAGE SELECTOR switch (General model only)
If the pre-set setting is incorrect, set the switch to the proper
voltage for your area.
Consult your dealer if you are unsure of the correct setting.
WARNING
Be sure to unplug the unit before setting the VOLTAGE
SELECTOR switch.
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