ONKYO AVX-280 ユーザーズマニュアル

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Connections

The following table indicates the channels you should use 
depending on the number of speakers that you have. 
For 5.1-channel surround-sound playback, you need 
5 speakers and a powered subwoofer.

No matter how many speakers you use, a powered sub-
woofer is recommended for a really powerful and solid 
bass.
To get the best from your surround sound system, you 
need to set the speaker settings. You can do this manually 
(

31).

The AV receiver’s positive (+) speaker terminals are color-
coded for ease of identification. (The negative (–) speaker 
terminals are all black.)

Read the following before connecting your speakers:
• You can connect speakers with an impedance of between 

6 and 16 ohms. If you use speakers with a lower imped-
ance, and use the amplifier at high volume levels for a 
long period of time, the built-in amp protection circuit 
may be activated.

• Disconnect the power cord from the wall outlet before 

making any connections.

• Pay close attention to speaker wiring polarity. In other 

words, connect positive (+) terminals only to positive (+) 
terminals, and negative (–) terminals only to negative (–) 
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 con-

tact with the AV receiver’s rear panel. Doing so may 
damage the AV receiver.

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

minal. Doing so may damage the AV receiver.

• Don’t connect one speaker to several terminals.

Front speakers

✔

✔

✔

✔

Center speaker

✔

✔

Surround speakers

✔

✔

Front left

White

Front right

Red

Center

Green

Surround left

Blue

Surround right

Gray

Subwoofer

Purple