Yamaha R-S300BL Manual Do Utilizador

■ IMPEDANCE SELECTOR switch

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.

■ Connecting speaker cables

When inserting speaker cables into the speaker terminals, insert 
only the bare speaker wire. If insulated cable is inserted, the 
connection may be poor and sound may not be heard.

■ Connecting via banana plug

Tighten the knob and then insert the banana plug into the 
end of the corresponding terminal.

■ Bi-wire connection

Bi-wire connection separates the woofer from the 
combined midrange and tweeter section. A bi-wire 
compatible speaker has four binding post terminals. These 
two sets of terminals allow the speaker to be split into two 
independent sections. With these connections, the mid and 
high frequency drivers are connected to one set of 
terminals and the low frequency driver to another set of 
terminals.

Connect the other speaker to the other set of terminals in 
the same way.

When making bi-wire connections, set the IMPEDANCE 
SELECTOR switch to HIGH or LOW depending on the 
impedance of your speakers: 
8 

Ω or higher: HIGH

4 

Ω or higher: LOW

See page 11 for more information about the 
IMPEDANCE SELECTOR switch.

When making bi-wire connections, remove the shorting bridges 
or cables on the speaker.

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To use the bi-wire connections, press SPEAKERS A and 
SPEAKERS B on the front panel or on the remote control so that 
both SP A and B light up on the front panel display.

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

each speaker must be 8 

Ω

 or higher.

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

the impedance of each speaker must be 16 

Ω

 

or higher. (Except for U.S.A. model)

• If you make bi-wire connections, the 

impedance of each speaker must be 8 

Ω

 or 

higher. See page 11 for Bi-wire connection.

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

each speaker must be 4 

Ω

 or higher.

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

the impedance of each speaker must be 8 

Ω

 or 

higher.

• If you make bi-wire connections, the 

impedance of each speaker must be 4 

Ω

 or 

higher. See page 11 for Bi-wire connection.

Remove 
approximately 
10 mm (3/8 in) 
of insulation 
from the end of 
each speaker 
cable.