Yamaha A-S300 Manual del usuario - Página 8

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CONTROLS AND FUNCTIONS

Rear panel

1 CD input jacks

Used to connect a CD player (see page 5).

2 PHONO jacks and GND terminal

Used to connect a turntable that uses an MM cartridge,

and to ground the terminal (see page 5).

3 Audio input/output jacks

Used to connect external components, such as a tuner, etc

(see page 5).

4 DOCK jack

Used to connect an optional Yamaha Universal Dock for

iPod or Wireless System for iPod (see page 10).

5 SUBWOOFER OUT jack

Used to connect a subwoofer with built-in amplifier (see

page 5).

The SUBWOOFER OUT jack attenuates signals over 90 Hz.

6 POWER MANAGEMENT switch

Enables or disables the automatic power down function

(see page 7).

7 SPEAKERS A/B terminals

Used to connect one or two speaker sets (see page 5).

8 IMPEDANCE SELECTOR switch

See IMPEDANCE SELECTOR switch on this page.

9 Power cable

Connect the power cable into the wall outlet (see page 7).

■ IMPEDANCE SELECTOR switch

CAUTION

Do not change the IMPEDANCE SELECTOR switch

while the power of this unit is turned on, as doing so may

damage the unit.

If the unit fails to turn on, the IMPEDANCE SELECTOR

switch may not be fully slid to either position. If this is the

case, remove the power cable and slide the switch all the

way to either position.

Select the switch position (LOW or HIGH) according to

the impedance of the speakers in your system.

Switch

position

• If you use one set (A or B), the impedance of

each speaker must be 6

• If you make bi-wire connections, the

HIGH

impedance of each speaker must be 6

higher. See page 6 for details.

• If you use one set (A or B), the impedance of

each speaker must be 4

• If you use two sets (A and B) simultaneously,

the impedance of each speaker must be 8

LOW

higher.

• If you make bi-wire connections, the

impedance of each speaker must be 4

higher. See page 6 for details.

Impedance level

or higher.