18
INSTALLATION AND CONNECTIONS
Multiroom Connections
The AVR is equipped with multizone capabilities
that allow it to send an audio and/or video
source to the remote zone that is different from
the one selected for use in the main room.
Please note that this capability applies to analog
inputs from sources such as the AVR’s tuner,
tape decks or VCRs. If you wish to use a source
such as a DVD or CD player that is normally con-
nected via a digital connection, it is necessary to
run an analog connection from the source to the
AVR or to use the Main Downmix input option,
as explained on page 44.
Depending on your system`s requirement and
distance from the AVR to the remote room, three
options are available for audio connection:
Option 1:
Use high-quality, shielded audio
interconnect phono cable from the AVR’s loca-
tion to the remote room. In the remote room,
connect the interconnect cable to a stereo
power amplifier. The amplifier will be connected
to the room’s speakers. At the AVR, plug the
audio interconnect cables into the
Multiroom
Output Jacks
.
on the AVR’s rear panel.
Option 2:
Place the amplifier that will provide
power to the remote location speakers in the
same room as the AVR, and connect the
Multiroom Output
jacks
.
on the rear panel
of the AVR to the audio input of the remote
room amplifier. Use the appropriate speaker wire
to connect the optional power amplifier to the
remote speakers. High-quality wire of at least
2.5 mm
2
is recommended for long multiroom
connections.
Option 3:
Taking advantage of the AVR’s built-
in seven-channel amplifier, it is possible to use
two of the amplifier channels to power speakers
in the remote room. When using this option you
will not be able to use the full 7.1-channel capa-
bilities of the AVR in the main listening room,
but you will be able to add another listening
room without additional external power ampli-
fiers. To use the internal amplifiers to power a
remote zone, connect the speakers for the
remote room location to the
Surround
Back/Multiroom Speaker Outputs
.
Before using the remote room you will need to
configure the amplifiers for surround operation
by changing a setting in the
MULTI-ROOM
SETUP
menu, following the instructions
shown on page 43.
NOTE:
For all options, you may connect an
optional IR sensor (Harman Kardon He 1000) in
the remote room to the AVR via an appropriate
cable. Connect the sensor’s cable to the
Multiroom IR Input
on the AVR and use
the Zone II remote to control the room volume.
Alternatively, you may install an optional volume
control between the output of the amplifiers and
the speakers.
Multiroom Video Connections
The AVR 7300’s multiroom system is designed to
send both video and audio signals to a remote
room location. This may be the same source that
is in use in the main room, or you may select a
separate input source through the Multiroom
menus or remote, as explained on page 43.
The only additional connection required to add
video capabilities to your multiroom system is to
connect the
Multiroom Video Outputs
%
either directly to the video display in the remote
room or to any optional video distribution ampli-
fiers that may be required when the length of
the connection cable is such that additional
amplification is required.
The following items may be of additional assis-
tance when using video as part of a multiroom
system with the AVR 7300:
• Component video sources may not be routed
through the multiroom system. When using a
component video device, you should also
make a composite or S-Video connection to
permit use of the multiroom system.
• As with all cable installations, when running
any wiring inside a wall be certain that the
cable carries the proper NEC rating for the
application. The use of improperly rated
cables may present a safety hazard. Consult
a qualified installer or licensed electrician
should you have any questions about the use
of in-wall cables for video or audio.
• When connecting the AVR 7300 to the
remote room video display, be aware of the
distance limitations that may exist for both
composite and S-Video connections.
Although the use of low-loss coax for com-
posite video and higher-grade S-Video cables
may reduce signal loss, optional distribution
amplifiers may occasionally be required when
long cable runs are used.
A-BUS Installation Connections
The AVR is among the very few receivers avail-
able today that offers built-in A-BUS Ready
®
operation. When used with an optional A-BUS
keypad or control module, you have all the bene-
fits of remote zone operation without the need
for an external power amplifier.
To use the AVR with an approved A-BUS prod-
uct, simply connect the keypad or module that is
in the remote room to the AVR using standard
“Category 5” wiring that is properly rated for
the inwall use specific to the installation.
Terminate the wiring at the receiver end to a
standard RJ-45 jack in compliance with the
instructions furnished with the A-BUS module.
No further installation or adjustment is needed,
as the A-BUS connector on the AVR routes the
signals in and out of the keypad to their proper
destination for power, signal source and control.
The output fed to the A-BUS jack is determined
by the AVR’s multiroom system, and the menus
may be used as is.
RS-232 Connections
The AVR is equipped with an
RS-232 Serial
Connection Port
that may be used for two
purposes. When the port is connected to a com-
patible, optional, external computer, keypad or
control system the AVR is capable of bi-direc-
tional communications that enable the external
system to control the AVR, and for the AVR to
report status and handshake data back to the
controller. Use of the RS-232 port for this type of
control requires specific technical knowledge,
and we recommend that any connection and
programming for control be made by a trained
installer or technician familiar with the equip-
ment being used.
The RS-232 port may also be used as an access
point through which the AVR’s operating system
and surround mode memories may be updated
via connection to a compatible computer. At the
time that any upgrade is available, instructions
for making the connection and installing the
upgrade will be available through the Product
Support area of the Harman Kardon Web site at
www.harmankardon.com.
The physical connection to the AVR’s RS-232
port is a standard D-9 connection but to assure
compatible and proper operation, specific soft-
ware commands and pin wiring schemes may be
required.
Trigger Jack Connection
The AVR 7300 is equipped with a low-voltage
Amp Trigger Jack
that may be used to acti-
vate optional, external power amplifiers, screen
motors, motorized blinds or other compatible
products that may be part of a home theater
installation. Once the connections are made,
operation is seamless in that the low-voltage
control signal is sent to the screen, blinds or
other device when the AVR 7300 is turned on,
and it is turned off along with the AVR.
Due to
the complexity of interfacing with power-
controlled devices, we strongly recom-
mend that the installation be done by a
qualified installer.
The AVR 7300’s trigger jack is a 3.5mm mono
miniplug that delivers a 6-volt DC signal to the
center pin (“tip”) of the plug (+) with the outer
shaft (“ring”) of the plug as the negative (–) or
ground connection. After checking for polarity,
voltage and current draw compatibility between
the AVR and the product to be controlled, simply
connect the miniplug to the
Amp Trigger Jack
on one end and to the device to be con-
trolled on the other. No further programming is
required.
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. The total power draw to the
Unswitched
Outlet
must not exceed
100 watts, that to the
Switched
Outlet
50 watts.
Installation and Connections
