Onkyo SR507 Stereo System User Manual


 
17
Connecting the AV receiver—Continued
Speaker Connection Precautions
Read the following before connecting your speakers:
North American and Taiwan models: 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.
Other models: 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 ohms, be sure to set the
minimum speaker impedance to “4 ohms” (see
page 40). 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 (–)
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.
Don’t connect more than one
cable to each speaker
terminal. Doing so may
damage the AV receiver.
Don’t connect a speaker to several terminals.
Connecting the Speaker Cables
Terminal posts
Push terminals
1
Strip 1/2"-5/8" (12-
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.
1
Strip 3/8"-1/2"
(10-12 mm) of
insulation from the
ends of the speaker
cables, and twist the
bare wires tightly, as
shown.
2
While pressing the lever,
insert the wire into the
hole, and then release the
lever.
Make sure that the
terminals are gripping the
bare wires, not the insulation.
1/2"-5/8" (12-15mm)
3/8"-1/2" (10-12mm)