System And Power Connections - Harman Kardon HK3470 Owner's Manual

Installation and Connections

System and Power Connections

The HK 3470 is designed for flexible use with
external control components and power ampli-
fiers. These connections are easy to make during
an initial installation, or at a later date should
you choose to upgrade your system.
Remote Control Extension
If the receiver is placed behind a solid or smoked
glass cabinet door, the obstruction may prevent
the remote sensor from receiving commands. In
this event, an optional remote sensor may be
used. Connect the output of the remote sensor
to the Remote IR In jack .
If other components are also prevented from
receiving remote commands, only one sensor is
needed. They may use this unit's sensor or a
remote eye by running a connection from the
Remote IR Out jack to the Remote In jack
on Harman Kardon or other compatible equip-
ment.
External Audio Power Amplifier
Connections
If desired, an optional, external amplifier may be
used in place of the HK 3470's internal power
amplifier.
To connect an external power amplifier, first
remove the Pre-Out/Main-In Jumper Pins
that connect the Preamp Out
jacks on the rear panel. Keep the jumpers in
a safe place should they be needed at a later
time.
Using high-quality audio interconnect cables,
connect the Preamp Out jacks
jacks on your power amplifier. Make certain to
match the right output to the right input and the
left output to the left input.
Note that when an external power amplifier is
used, no special adjustments are required. All
volume and other control adjustments are made
using the standard front panel or remote con-
trols.
If you wish to use external processing equip-
ment, such as an equalizer, you may connect the
device to the preamp-out and main-in jacks by
removing the Preamp-Out/Main-In Jumper
Pins and connecting the Preamp Out
jacks to the inputs of the external device, and
the outputs of the device to the Main In
jacks.
Alternatively, you may connect the external
device to the Tape Monitor Loop. Connect the
Tape Monitor Record/Out jacks
inputs of the external device, and connect the
outputs of the device to the Tape Monitor
Play/In jacks
AC Power Connections
This unit is equipped with an accessory AC out-
let. It may be used to power accessory devices,
but it should not be used with high-current draw
equipment such as power amplifiers. The total
power draw may not exceed 100W at this out-
let.
This Switched AC Outlet
power only when the unit is on. This is recom-
mended for devices that have no power switch,
or those with a mechanical power switch that
may be left in the "ON" position.
NOTE: Devices with electronic power switches
may only go into a Standby mode when plugged
and Main In
in here.
Power to this outlet is removed when the unit is
in the Standby mode, or when the Main Power
Switch is in the "OFF" position.
Speaker Placement
to the input
For optimal listening enjoyment, and for sound-
field reproduction that best re-creates the origi-
nal recording, it is good practice to place the
speakers so that they form a triangle with the
speakers at the front of the room, and the pre-
ferred listening spot at the third point of the tri-
angle. The distance between each speaker and
the listener should be identical.
For example, if the speakers are 2,5 meters from
one another, each of the speakers should opti-
mally be placed so that they are also 2,5 meters
from the listener. It is also desirable to place
speakers so that their tweeters, or highfrequency
drivers, are aimed at ear height when you are
seated in the listening position.
to the
.
will receive
Left Front Right Front
Speaker Speaker
A good starting point for speaker placement is to make the
distance between the two speakers and the distance between
either speaker and the listener identical.
To optimize the sound field, or to suit your lis-
tening room environment, you may find that
some experimentation is required to find the
correct location. Ideally, pans from left to right
across the front of the room should sound
smooth, and instruments should appear to be
coming from the proper location within an
orchestra.
The placement of subwoofers should be done as
suggested in the manufacturer's instructions. In
general, subwoofers often produce best results
when they are placed in the corner of a room,
along the same wall as the speakers, but optimal
placement will vary widely depending on room
size, the subwoofer type and the placement of
rugs and furniture in a room. It may be helpful
to temporarily position the subwoofer in the
usual listening position, then walk around the
room while program material is playing until the
bass reproduction sounds best to your ears. That
location is likely to be the optimum position for
the subwoofer.
Finally, when all connections are complete, plug
the power cord into a nonswitched 230-volt AC
wall outlet. You're ready to enjoy the HK 3470!
INSTALLATION AND CONNECTIONS
13