Onkyo HT-R648, Instruction Manual

Page: 12 / 76

12
En
Speaker Configuration
The following table indicates the channels you should use
depending on the number of speakers that you have.
No matter how many speakers you use, a powered
subwoofer 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 automatically
(
➔
page 28 ) or manually (
➔
page 41 ).
*1 If you’re using only one surround back speaker, connect it to
the
SURROUND BACK L PRE OUT jack.
Attaching the Speaker Cable Labels
The speaker terminals (and preout jacks) are color-coded
for identification purpose.
The supplied speaker cable labels are also color-coded and
you should attach them to the positive (+) side of each
speaker cable in accordance with the table above. Then all
you need to do is to match the color of each label to the
corresponding speaker terminal.
Speaker Connection Precautions
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
impedance, 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.
• 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 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
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.
Number of channels 2 3 4 5 6 7
Front speakers
✔ ✔ ✔ ✔ ✔ ✔
Center speaker
✔ ✔ ✔ ✔
Surround speakers
✔ ✔ ✔ ✔
Surround back speaker *1
✔
Surround back speakers
✔
Speaker Color
Front left White
Front right Red
Center Green
Surround left Blue
Surround right Gray
Surround back left Brown
Surround back right Tan