ONKYO HT-R640 Manual De Instruções

20

Read the following before connecting your speakers:
• Only connect speakers with an impedance of 6 ohms 

or higher. If you use speakers with a lower impedance, 
and use the amplifier at high volume levels for a long 
period of time, the built-in protection circuit may be 
activated.

• Disconnect the power cord from the wall outlet before 

making any connections.

• Read the instructions supplied with your speakers.
• Pay close attention to speaker wiring polarity. In other 

words, connect positive (+) terminals only to positive 
(+) terminals, and negative (–) terminals only to nega-
tive (–) terminals. If you get them the wrong way 
around, the sound will be out of phase and will sound 
unnatural.

• Unnecessarily long, or very thin speaker cables may 

affect the sound quality and should be avoided.

• Be careful not to short the 

positive and negative wires. 
Doing so may damage the AV 
receiver.

• Make sure the metal core of the 

wire does not have contact with 
the AV receiver’s rear panel. 
Doing so may damage the AV 
receiver.

• Don’t connect more than one cable to each speaker 

terminal. Doing so may damage the AV receiver.

• Don’t connect one speaker to several terminals.

The following illustration shows which speaker should 
be connected to each pair of terminals.

5/8" (15 mm) 

Center 
speaker

Front left 
speaker

Front right 
speaker

Surround 
right 
speaker

Surround 
left 
speaker