Onkyo TX-NR905 Stereo Receiver User Manual


 
25
Connecting Your Speakers
—Continued
Speaker Connection Precautions
Read the following before connecting your speakers:
•You can connect speakers with an impedance of
between 4 and 16 ohms. If the impedance of any of the
connected speakers is 4 ohms or more but less than 6,
be sure to set the speaker impedance to 4 ohms (see
page 51). 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. Connect
positive (+) terminals to only positive (+) terminals,
and negative (–) terminals to only negative (–) termi-
nals. 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.
Don’t connect more than one
cable to each speaker termi-
nal. Doing so may damage the
AV receiver.
Don’t connect a speaker to several terminals.
Attaching the Speaker Labels
The AV receiver’s positive (+) speaker terminals are
color-coded for ease of identification. (The negative (–)
speaker terminals are all black.)
The supplied speaker labels are also color-coded and you
should attach them to the positive (+) side of each
speaker cable in accordance with the above table. All you
need to do then is to match the color of each label to the
corresponding speaker terminal.
Connecting the Speaker Cables
Speaker terminal Color
Front left, Zone 2 left White
Front right, Zone 2 right Red
Center Green
Surround left Blue
Surround right Gray
Surround back left Brown
Surround back right Tan
1
Strip about 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 wire.
4
Screw the terminal tight.
5/8" (15 mm)