ONKYO 9555 ユーザーズマニュアル
10
Connecting the A-9755/A-9555
Speaker Connection Precautions
You can connect one or two sets of speakers (A/B) to
the A-9755/A-9555, and select which set outputs sound,
or use both sets at the same time.
For both speakers A and B, make sure to connect them
with Left and Right in pairs. If you connect either Left
or Right channel alone, no sound output will be avail-
able. If the electrical contact is poor for the connection,
the Volume indicator will flash quickly when the power
is supplied.
the A-9755/A-9555, and select which set outputs sound,
or use both sets at the same time.
For both speakers A and B, make sure to connect them
with Left and Right in pairs. If you connect either Left
or Right channel alone, no sound output will be avail-
able. If the electrical contact is poor for the connection,
the Volume indicator will flash quickly when the power
is supplied.
• Connecting one set of speakers (A or B): Only con-
nect speakers with an impedance of 4 ohms or more
but less than 16 ohms. If you use speakers with a
lower impedance, and use the A-9755/A-9555 at high
volume levels for a long period of time, the built-in
protection circuit may be activated.
but less than 16 ohms. If you use speakers with a
lower impedance, and use the A-9755/A-9555 at high
volume levels for a long period of time, the built-in
protection circuit may be activated.
• Connecting two sets of speakers (A and B): Only
connect speakers with an impedance of 8 ohms or
more but less than 16 ohms. If you use speakers with
a lower impedance, and use the A-9755/A-9555 at
high volume levels for a long period of time, the
built-in protection circuit may be activated.
more but less than 16 ohms. If you use speakers with
a lower impedance, and use the A-9755/A-9555 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
• 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.
(+) 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
A-9755/A-9555.
Doing so may damage the
A-9755/A-9555.
• Don’t connect more than one
cable to each speaker termi-
nal. Doing so may damage
the A-9755/A-9555.
nal. Doing so may damage
the A-9755/A-9555.
• Don’t connect a speaker to more than one pair of
speaker terminals.
Connecting the Speaker Cables
The following illustration shows which speaker should
be connected to each pair of terminals.
be connected to each pair of terminals.
Connecting Your Speakers
1
Strip about 15 mm (5/8
inch) of insulation from
the ends of the speaker
cables, and twist the bare
wires tightly, as shown.
inch) 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.
wires.
4
Screw the terminal tight.
15 mm
(5/8")
+
–
+
–
+
–
+
–
A-9755/A-9555
Speaker set A
Left
speaker
Right
speaker
Speaker set B
Left
speaker
Right
speaker