AVR 80 (serv.man3) - Harman Kardon Audio User Guide / Operation Manual. Page 18

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Installation, Set Up & Configuration
12
ENGLISH
External Audio Power Amplifier
Connections
Using the 
PRE OUT 
jacks 
ñ
,
connections may be made to external
power amplifiers. To make these
connections, remove the jumpers between
PRE-OUT
and 
MAIN IN
, and save
them for future use. Connect the 
PRE-
OUT
of the channels to be connected to
external amplifiers to that amplifier’s
inputs. Volume will still be controlled by
this receiver.
When an external amplifier is used for
the front channels, this receiver’s rear
channel outputs and one passive (non-
powered) subwoofer may be connected to
this unit’s internal amplifier for higher
power output. To make these
connections, follow the diagrams on this
page. Using short RCA to RCA jumpers,
connect the left and right 
SURR PRE-
OUT
jacks to the left and right 
FRONT
MAIN IN
jacks. A subwoofer may be
connected by connecting the
SUBWOOFER PRE OUT
to the
CENTER MAIN IN
If these connections are used, changes
must be made to the speaker outputs.
Connect the left and right surround
speakers to the speaker terminals labeled
FRONT
˙î
and the passive subwoofer
to the speaker terminals labeled
CENTER 
NOTE: When external power amplifiers
are used, the center channel speakers
should receive at least as much amplifier
power as the front left and right speakers. 
AC Power Connections
This unit is equipped with two accessory
AC outlets. They may be used to power
accessory devices, but they should not be
used with high current draw equipment
such as power amplifiers (not more than
50 Watts each).
The 
SWITCHED
outlet will receive
power only  when the unit is on. This is
recommended for devices that have no
power switch, or a mechanical power
switch that may be left in the “ON” 
position (as for example with the
harman/kardon CDPlayer HD730).
Devices with electronical power switch
may only switch on to standby mode, if
pluged in here.
The 
UNSWITCHED
ü
outlet will
receive power as long as the unit is
plugged into a powered AC outlet.
Finally, when all connections are
complete, plug the power cord into a
non-switched AC wall outlet. Note that
the ring surrounding the Power Switch
(
will turn amber. You’re almost ready
to enjoy the AVR80!
CENTER
SURR.
8 OHMS
8 OHMS
FRONT
8 OHMS
R
L
SPEAKERS
Subwoofer
Left Surround
Speaker
Right Surround
Speaker
+
MAIN IN
PRE OUT
L
FRONT
R
SURR. 
CENTER
SUB
WOOFER
L
R
External
Power Amplifier
CENTER
+
+
Use these connections when the AVR80’s
internal amplifiers are re-configured from
their factory settings
AVR80 manual  11/01/98 13:01  Side 12
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