Other connections 11
55
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•
SP
AB
– Sound is output from speaker
system A (up to 5 channels, depending on
the source), the two speakers in speaker
system B, and the subwoofer.
Multichannel sources (heard through
speaker system A) are downmixed for
stereo output from speaker system B.
Bi-amping is when you connect the high
frequency driver and low frequency driver of
your speakers to different amplifiers (in this
case, to both front and surround back
terminals) for better crossover performance.
Your speakers must be bi-ampable to do this
(having separate terminals for high and low)
and the sound improvement will depend on the
kind of speakers you’re using.
1 Connect your speakers as shown below.
This illustration below shows the connections
for bi-amping your front left speaker. Hook up
your front right speaker in the same way.
Since both front and surround back speaker
terminals output the same audio, it doesn’t
matter which set (front or surround back) is
powering which part (
Hi
or
Low
) of the
speaker.
• Make sure that the
+
/
–
connections are
properly inserted.
2 Select the
’Front Bi-Amp’
setting from
the ‘
Surr Back System’
menu.
See
Surround back speaker setting
on page 34
to specify how you’re using the surround back
speaker terminals.
Caution
• Most speakers with both
Hi
and
Low
terminals have two metal plates that
connect the
Hi
to the
Low
terminals. These
must be removed when you are bi-amping
the speakers or you could severely damage
the amplifier. See your speaker manual for
more information.
• If your speakers have a removable
crossover network, make sure you do not
remove it for bi-amping. Doing so may
damage your speakers.
The reasons for bi-wiring are basically the
same as bi-amping, but additionally,
interference effects within the wire could be
reduced, producing better sound. Again, to do
this your speakers must be bi-wireable (that is
they must have separate terminals for the high
and low frequencies). When bi-wiring, make
sure you’ve selected
Normal (SB)
or
Second
Zone
in
Surround back speaker setting
on
page 34.
•To bi-wire a speaker, connect two speaker
cords to the speaker terminal on the receiver.
Using a banana plug for the second
connection is recommended.
FRONT
RLCENTERSURROUND
S
P
E
A
K
E
R
S
RL
SURROUND BACK
A B
LR
Hi
Lo
Front left
speaker