12
INSTALLATION AND CONNECTIONS
System Installation
After unpacking the unit and placing it on a
solid surface capable of supporting its weight,
you will need to make the connections to your
audio and video equipment. These steps need
to be done only when the receiver is first
installed or when a change is made to the
input source equipment.
Audio Equipment Connections
We recommend that you use high-quality inter-
connect cables when making connections to
source equipment and recorders to preserve the
quality of the signals.
When making connections to audio source
equipment or speakers it is always a good prac-
tice to unplug the unit from the AC wall outlet.
This prevents any possibility of accidentally
sending audio or transient signals to the speak-
ers that may damage them.
1. Connect the analog output of a CD player to
the
CD
inputs
¶
.
NOTE: When the CD player has both fixed and
variable audio outputs, it is best to use the
fixed output unless you find that the input to
the receiver is so low that the sound is noisy, or
so high that the signal is distorted.
2. Connect the Play/Out jacks of a cassette
deck, CDR, MD or other audio recorder to the
Tape Monitor In
jacks
ª
. Connect the
Record/In jacks on the recorder to the
Tape
Monitor Out
jacks
‚
on the HK 3470. When
the tape deck connected to these jacks is a
three-head unit or has off-head playback, it will
be possible to monitor the output of the source
being recorded.
3. Connect the output of a second audio
recorder, CDR, VCR or other line-level audio
device to the
Tape 2 Play/In
jacks
⁄
. If a
recorder is used, connect its Rec/In jacks to the
matching
Tape 2 Record
outputs
¤
.
4. The output of any electronics product with a
line-level output, such as a TV set, satellite
receiver or DVD, may be connected to the
Aux
jacks
•
.
5. Connect the outputs of a turntable with a
moving magnet cartridge to the
Phono
inputs
§
. To insure that the phono playback is noise-
free, connect the ground wire from the tone-
arm to the
Phono Ground
terminal
£
.
6. Assemble the AM Loop Antenna supplied
with the unit as shown below. Connect it to the
AM
screw terminals
¡
.
7. Connect an FM antenna to the
FM Antenna
connection
™
. The FM antenna may be an
external roof antenna, an inside powered or
wire lead antenna or a connection from a cable
TV system. Note that if the antenna or connec-
tion uses 300-ohm twin-lead cable, you must
use the 300-ohm-to-75-ohm adapter supplied
with the unit to make the connection.
Speaker and Output Connections
To ensure that all the audio signals are carried
to your speakers without loss of clarity or reso-
lution, we suggest that you use high-quality
speaker cable. Many brands of cable are avail-
able, and the choice of cable may be influenced
by the distance between your speakers and the
receiver, the type of speakers you use, personal
preferences and other factors. Your dealer or
installer is a valuable resource for help in
selecting the proper cable.
Regardless of the brand of cable selected, we
recommend that you use a cable constructed of
fine, multistrand copper with a gauge of
AWG14 or smaller. Remember that in specifying
cable, the lower the number, the thicker the
cable.
Cable with a gauge of 16 may be used for
short runs of less than ten feet. We do not rec-
ommend that you use cables with an AWG
equivalent of 18 or higher due to the power
loss and degradation in performance that will
occur.
Cables that are run inside walls should have
the appropriate markings to indicate listing
with UL, CSA or other appropriate testing
agency standards. Questions about running
cables inside walls should be referred to your
installer or a licensed electrical contractor who
is familiar with the NEC and/or the applicable
local building codes in your area.
When connecting wires to the speakers,
be certain to observe proper polarity.
Remember to connect the “negative” or
“black” wire to the same terminal on the
receiver and the speaker. Similarly, the “posi-
tive” or “red” wire should be connected to the
like terminals on the HK 3470 and speaker.
We also recommend that the length of cable
used to connect speaker pairs be identical. For
example, use the same length piece of cable
to connect the Speaker 1 left and right or
Speaker 2 left and right speakers, even if the
speakers are a different distance from the
HK 3470.
NOTE: While most speaker manufacturers
adhere to an industry convention of using black
terminals for negative and red ones for positive,
some manufacturers may vary from this config-
uration. To assure proper phase, and optimal
performance, consult the identification plate on
your speaker, or the speaker’s manual to verify
polarity. If you do not know the polarity of your
speaker, ask your dealer for advice before pro-
ceeding, or consult the speaker’s manufacturer.
Connect the speakers using the following steps:
1. Connect the main speakers to the
Speaker 1
terminals
‡
.
2. Connect a second set of speakers, or speakers
that are in a second room location, to the
Speaker 2
terminals
°
.
3. When an optional, powered subwoofer is
used, connect the outputs of the left and right
Subwoofer Out
jacks
fl
to the line-level
inputs of the subwoofer. When the subwoofer’s
amplifier has stereo inputs, run interconnects
from both jacks. When the subwoofer has a
mono input only, use the bottom output jack
for the connection. If the subwoofer has only
speaker-level inputs and outputs, connect the
Speaker 1
terminals
‡
to the speaker-level
inputs on the subwoofer, and then connect the
speaker-level outputs on the subwoofer to your
main left and right speakers, following the
instructions provided with the subwoofer. When
a passive subwoofer is used, these connections
will be made to the optional amplifier that
powers the subwoofer.
Installation and Connections
