Yamaha RX-300 Owner's Manual download pdf (Page 12)

Be sure to switch this only when the power of this unit is turned

off.

Select the position whose requirements your speaker system

meets.

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.

(Upper position)

Rear: If you use one rear speaker, the impedance of the

speaker must be 6Ω or higher.

If you use two rear speakers, the impedance of each

speaker must be 3Ω or higher.

Center: The impedance of the center speaker must be 6Ω or

higher.

Main: If you use one pair of main speakers, the impedance

of each speaker must be 4Ω or higher.

If you use two pairs of main speakers, the impedance

of each speaker must be 8Ω or higher.

(Lower position)

Rear: If you use one rear speaker, the impedance of the

speaker must be 8Ω or higher.

If you use two rear speakers, the impedance of each

speaker must be 4Ω or higher.

Center: The impedance of the center speaker must be 8Ω or

higher.

Main: If you use one pair of main speakers, the impedance

of each speaker must be 8Ω or higher.

If you use two pairs of main speakers, the impedance

of each speaker must be 16Ω or higher.

IMPEDANCE SELECTOR switch

MAINS

I00W MAX. TOTAL

SWITCHED

AC OUTLETS

SINGLE:6ΩMIN. /SPEAKER

:3ΩMIN. /SPEAKER

:6ΩMIN. /SPEAKER

A OR B:4ΩMIN. /SPEAKER

A B:8ΩMIN. /SPEAKER

IMPEDANCE SELECTOR

SET BEFORE POWER ON

REAR

CENTER

MAIN

SINGLE:8ΩMIN. /SPEAKER

:4ΩMIN. /SPEAKER

:8ΩMIN. /SPEAKER

A OR B:8ΩMIN. /SPEAKER

REAR

CENTER

MAIN

A B:I6ΩMIN ./SPEAKER

VOLTAGE

SELECTOR

(General model)

ABOUT THE ACCESSORY TERMINALS

2 AC OUTLETS (SWITCHED)

Use these to connect the power cords from your components

to this unit.

The power to the SWITCHED outlets is controlled by this unit’s

POWER switch or the provided remote control transmitter’s

POWER key. These outlets will supply power to any

component whenever this unit is turned on.

The maximum power (total power consumption of components)

that can be connected to the SWITCHED AC OUTLETS is 100

watts.

GND terminal (For turntable use)

Connecting the ground wire of the turntable to the GND

terminal will normally minimize hum, but in some cases better

results may be obtained with the ground wire disconnected.

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Yamaha RX-300 Owner's Manual Page 12

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