Speaker Impedance - Harman Kardon 900+ Instruction Manual

Am/fm multichannel receiver
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The 900
+
connects two pairs of speaker systems for the front channels,
and another two pairs for the back. Any pair may be driven independently
or a
combination
of two pairs may b
e
driven,
as
selected by the MAIN and
REMOTE Speaker Switches. Connect them to the receiver as instructed in the
diagrams (Fig. 2 and Fig. 3), taking care not to confuse the FRONT and BACK,
LEFT and RIGHT channels, and the plus and minus polarities. Sufficient care
should be taken not to short circuit the plus and minus leads.
SPEAKER IMPEDANCE
Each speaker system connected to
your
900
+
must possess an impedance
of from 4 to
16
ohms. Should you wish to drive two pairs of speaker systems
simultaneously, they should all have an impedance of 8 ohms or more.
4-CHANNEL OPERATION !See Fig. 21
Refer to the introductory comments under the heading CONNECTING THE
SPEAKERS.
1.
Connect one length of lamp cord to the LEFT FRONT speaker.
2.
Attach the other end of the lamp cord to the MAIN, FRONT screw terminals
marked LEFT
+
and
-
on the rear panel of your receiver.
3.
Similarly connect another length of lamp card to your RIGHT FRONT
speaker.
4.
Attach the other end
of
the lamp card ta the MAIN, FRONT terminals
marked RIGHT
+
and
-
on the rear panel of your receiver.
5.
Connect a length of lamp cord to your LEFT BACK
speaker.
6.
Attach the other end of the lamp cord ta the MAIN, BACK terminals marked
LEFT
+
and -
on the rear panel of your receiver.
7.
Connect another length of lamp card ta your RIGHT BACK speaker.
8.
Attach the other end of the lamp
cord
to the MAIN, BACK terminals marked
RIGHT
+
and
-
on the rear panel of your receiver.
9.
Use above
steps
ta connect REMOTE speakers, using REMOTE terminals.
4
FRONT SPEAKERS
LEFT
RIGHT
LEFT
RIGHT
BACK SPEAKERS
REMOTE
LffT
11:IGlff
(@~ (@
@
0
1!
@~~
@
0
11
CAUTION
CONNECT SPEAKERS
WITH CARE. AVOID
SHORTS.
4-CH
FIG-2

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