Connecting the AV Receiver—Continued

Speaker Connection Precautions

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.

Connecting the Speaker Cables

1

Strip about 5/8" (15 mm)

5/8" (15 mm)

 

of insulation from the

 

 

ends of the speaker

 

 

cables, and twist the bare

 

 

wires tightly, as shown.

 

2

Unscrew the terminal.

 

3

Fully insert the bare

 

 

wires.

 

4

Screw the terminal tight.

 

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

Surround Surround

left right

speaker speaker

Front right

Front left

Center

speaker

speaker

speaker

20

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Image 20
Onkyo HT-R640 instruction manual Speaker Connection Precautions, Connecting the Speaker Cables, Strip about 5/8 15 mm