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13 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 dur-
ing 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 com-
mands. 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 fi and
Main In ‹ 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 fi to the input
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
controls.

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 fi 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 ‚ to the
inputs of the external device, and connect the
outputs of the device to the Tape Monitor
Play/In jacks ª.

AC Power Connections
The Accessory Outlets · receive power as
long as the receiver is turned on. Power to
these outlets is removed when the unit is in the
Standby mode, or when the Main Power
Switch

1 is in the “OFF” position.

Speaker Placement
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 10 feet from
one another, each of the speakers should opti-
mally be placed so that they are also 10 feet
from the listener. It is also desirable to place
speakers so that their tweeters, or high-
frequency drivers, are aimed at ear height 
when you are seated in the listening position.

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 sub-
woofer 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 120-volt AC
wall outlet. You’re ready to enjoy the HK 3470!

Right Front

Speaker

Left Front

Speaker

14 OPERATION

The HK 3470 is simple to operate, and very sim-
ilar to stereo receivers you may have used in
the past. This section will explain the use of
several features that may be new to you.

• Install the two supplied AAA batteries in the
remote as shown. Be certain to observe the (+)
and (–) polarity indicators shown in the bottom
of the battery compartment.

• When using the HK 3470 for the first time, it
will be necessary to press the Main Power
button 

1 on the front panel to turn the unit

on. This places the unit in a standby mode, as
indicated by the amber color of the Power
Indicator

3. Once the unit is in standby, you

may begin a listening session by pressing the
System Power Control

2 on the front panel

or the Main Power On button 

å on the

remote. Note that the Power Indicator 

3

will turn red, then green. This will turn the unit
on and return it to the input source that was
last used. The unit may also be turned on from
standby by pressing any of the Source
Selector buttons on the front panel

8 9

! # $ & or remote ç.

To turn the unit off at the end of a listening
session simply press the System Power
Control

2 on the front panel or the Main

Power Off button 

∫ on the remote. This

places the unit in the Standby mode, and the
Power Indicator

3 will turn amber to

remind you that the unit is ready for operation
when a power command is received from the
remote.

When the remote is used to turn the unit “off”,
it is actually placing the system in a standby
mode, as indicated by the amber color of the
Power Indicator

3.

When you will be away from home for an
extended period of time it is always a good
idea to completely turn the unit off using the
front panel Main Power Switch

1.

• To dim the brightness of the front panel dis-
play, press the Dimmer button 

˙ on the

remote. The first press will dim the lights to half
normal. A second press will turn the display
completely off. Press the Dimmer button 

˙

again to restore the display to normal bright-
ness.

• To select a source at any time, press any of
the Source Selector buttons on the remote
ç or front panel 8 9 ! # $ &.

• During a listening session you may wish to
adjust the Bass 

Ó, Treble Ô and Balance

 controls to suit your listening tastes.

• Adjust the volume to a comfortable level
using the front panel Volume Control

Ò or

remote Master Volume Up/Down

π but-

tons. The volume level is displayed by the posi-
tion of the Volume Indicator

Ú. Think of the

Volume Control knob 

Ò as the face of a

clock, with the Volume Indicator

Ú indicat-

ing the hour. The HK 3470 is playing at the
minimum volume level when the Volume
Indicator

Ú points to 7 o’clock; when the

Ú points to 12 o’clock

(straight up), the HK 3470 is playing at the
maximum volume level. It is important that you
make sure never to exceed this maximum vol-
ume level at any time, in order to avoid possi-
ble damage to your loudspeakers due to “clip-
ping”, a type of distortion that is not audible to
the human ear until it is severe enough to per-
manently damage most loudspeakers. It is also
possible, depending upon the program material,
for clipping to occur at volumes below the max-
imum volume level.

• To temporarily silence all speaker outputs,
press the Mute button 

®5. This will cut the

output to all speakers, but it will not affect any
recording or dubbing that may be in progress.
When the system is muted, the MUTE indicator
will light in the Main Information Display
Û and the Volume/Mute indicator Ú will
flash. Press the Mute button 

®5 again to

return to normal operation.

• For private listening, plug the 1/4" stereo
phone plug from a pair of stereo headphones
into the front panel Headphone jack 

4.

• One or two separate sets of speakers may be
connected to the HK 3470. To listen to one of
the speaker sets, press the Speaker buttons
67 on the front panel corresponding to the
desired speakers. The active speakers will be

indicated by a lit green LED in the Speaker
Indicators

Ù display. Both sets of speakers

may be turned off for private headphone listen-
ing.

• To program the HK 3470 for automatic turn-
off, press the Sleep button on the front panel
( or remote ©. Each press of the button will
increase the time before shutdown in the fol-
lowing sequence:

The sleep time will be displayed in the Main
Information Display 

Û and it will count

down until the time has elapsed.

When the programmed time has elapsed, the
unit will automatically turn off. Note that the
front panel display will dim to one-half bright-
ness when the Sleep function is programmed.
To cancel the Sleep function, press the Sleep
button 

(© until the Sleep indicator numbers

disappear and the Main Information Display
shows the current source. Pressing any control
button while the Sleep control is activated will
momentarily return the Main Information
Display to full brightness for increased legibility
without interrupting the Sleep function.

To take advantage of Harman Kardon’s exclu-
sive VMAx mode, Press the VMAx button
^†. When the VMAx circuits are engaged,
patented processing algorithms are used to cre-
ate a three-dimensional sound space with the
illusion of “phantom” speakers at center and
surround positions. This spacious sound will
simulate a surround-sound presentation with-
out the need to add additional speakers. To
return to standard stereo listening, press the
VMAx button 

^† again and note that the

A will go out.

The HK 3470’s tuner is capable of tuning AM,
FM and FM Stereo broadcast stations. Stations
may be tuned manually, or they may be stored
as favorite station presets and recalled from a
30-position memory.

Station Selection
1. Press the AM/FM 

& buttons on the front

panel or on the remote 

ç to select the tuner

as an input.

2. Press these buttons again at any time to
switch between AM and FM.

90

min

80

min

70

min

60

min

50

min

40

min

30

min

20

min

10

min

OFF

15 OPERATION

3. To select stations, press, and briefly hold, the
Tuning button 

)Ü and the tuner will search

for the next highest- or lowest-frequency sta-
tion that has an acceptable signal. To tune to
the next station, press the button again. Tap the
Tuning button 

)Ü to advance one frequen-

cy increment at a time, or press and hold it to
locate a specific station. When the TUNED indi-
cator lights, the station is properly tuned and
should be heard with clarity.

4. Stations may also be tuned directly by press-
ing the Direct button 

∆, and then pressing

the Numeric Keys

˚ that correspond to the

station’s frequency. The desired station will
automatically be tuned.

NOTE: When the FM reception of a station is
weak, audio quality will be increased by switch-
ing to Mono mode by pressing the FM Mode
button 

* ß until the STEREO indicator goes

out.

Preset Tuning
Up to 30 stations may be stored in the
HK 3470’s memory for easy recall using the
front panel controls or the remote. In order to
program preset stations into memory, you must
use the remote control.

To enter a station into the memory, first tune
the station using the steps outlined above.
Then:

1. Press the Memory button 

ø on the

remote. Note that the MEMO and PRESET
indicators will light and flash in the Main
Information Display.

2. Within five seconds, press the Numeric
Keys

˚ corresponding to the location where

you wish to store this station’s frequency.

3. Repeat the process after tuning any 
additional stations to be preset.

Auto Preset
• Preset stations may also be programmed
automatically for the entire FM band. To auto-
matically enter each station that may be tuned
with acceptable quality into the HK 3470’s pre-
set memories, first select the FM band. Next,
press and briefly hold the Auto Preset button
¬ until the MEMO and PRESET indicators
begin to flash, and the station frequency indica-
tion begins to increase. Release the button and
note that the tuner will search the entire FM
band, and stop briefly at each station that has
acceptable signal strength. The HK 3470 will
automatically assign a preset number to each

station, and then search for the next station.
The automatic scan process will stop when all
30 preset memory locations have been filled or
the entire FM band has been scanned three
times.

NOTE: Using the automatic tuning mode in
areas with more than 30 FM stations will com-
pletely fill the preset memories, and overwrite
any previously memorized presets for either AM
or FM stations.

TIP: The automatic scan process may enter sta-
tions that you do not wish to retain in the
memory, or it may enter a station on more than
one frequency if the signal is too strong. These
unwanted stations may be removed from the
memory using the Preset Clear function out-
lined below.

Recalling Preset Stations
• To manually select a station previously
entered in the preset memory, press the
Numeric Keys

˚ that correspond to the

desired station’s memory location.

• To manually tune through the list of stored
preset stations one by one

,

press the Preset

buttons 

% ∂ on the front panel or remote.

• To automatically scan through the stations
entered in the preset memory, press the Preset
Scan button 

@ œ on the front panel or

remote. The tuner will cycle through the list of
preset stations, stopping for five seconds at
each one. Press the button again to stop the
scan at your desired station.

Clearing Preset Stations
Unwanted preset stations may be erased from
the unit’s memory to make it easier to tune
only those stations you want.

To remove a preset station from the HK 3470’s
tuner memory, first tune to the station using
the Preset Scan button 

@ œ on the front

panel or remote, or by entering the preset num-
ber directly, using the Numeric Keys

˚.

When the preset station to be removed has
been tuned, first press the Memory button 

ø.

The MEMO and PRESET indicators in the Main
Information Display will flash, and the actual
preset number will disappear from the display.
Next, press the Clear button 

Ñ within five

seconds.

The preset station will be removed from the
memory, and the action will be confirmed by
the brief appearance of the word CLEAR and

the preset number location in the Main
Information Display. That memory location will
now be empty, and you may program a differ-
ent station to that location, or leave it empty.

In normal operation, the audio source selected
for listening through the HK 3470 is sent to the
Tape Mon Out and Tape 2 Rec Out outputs.
This means that any program you are listening
to may be recorded simply by placing machines
connected to the outputs for Tape Monitor
‚ or Tape 2 ¤ in the record mode.

When a tape recorder with separate record and
playback heads is used, you may monitor the
output of the recording by selecting the 
Tape Monitor Input Selector 

9 ç. Note

that the T-Mon Indicator will light in the
Main Information Display

Û to remind you

that you are listening to the record playback
instead of the actual input source being record-
ed.

IMPORTANT NOTE: Please make certain that
you are aware of the copyright restrictions on
any material you copy.

16 OPERATION

It is convenient to think of the functions of the
remote control buttons in terms of “pages”,
where each source device (e.g., CD player) rep-
resents its own page of remote functions. The
result is that some of the keys will perform dif-
ferent functions depending upon which device
page has been selected prior to pressing the
key. Device pages are selected by pressing the

ç, which also changes the

input source selection on the HK 3470.

Three of the device pages are factory-
programmed to operate compatible
Harman Kardon products. The Tape Monitor
device page is programmed as a factory default
to operate Harman Kardon cassette decks. The
Tape 2 page defaults to Harman Kardon CD-R
control codes. The CD page defaults to

Harman Kardon CD player or changer control
codes. Note that all of these keys may be pro-
grammed in the learning mode to transmit dif-
ferent remote codes to perform other functions
and/or operate other devices. Please refer to
the table below for specific information on the
default functions of the affected keys for these
devices.

Cassette deck control codes 

CD Recorder control codes 

CD player/changer control codes

REV. SKIP 

SKIP BACK 

REV. SKIP  

FWD. SKIP

SKIP FORWARD 

FWD. SKIP 

REW 

REV SEARCH 

REV SEARCH  

FF 

FWD SEARCH 

FWD SEARCH  

REC / PAUSE 

RECORD 

PAUSE  

STOP STOP  STOP 

 

REV. PLAY 

RANDOM PLAY   

FWD. PLAY PLAY 

PLAY 

 

TRANSPORT SELECT 

DISC SKIP UP 

DISC SKIP UP  

TRANSPORT SELECT 

DISC SKIP DOWN 

DISC SKIP DOWN  

TIME   

INTRO SCAN 

INTRO SCAN 

INTRO SCAN  

CDP SELECT   

CDR SELECT   

TRACK DIRECT 

PROGRAM PROGRAM 

FINALIZE   

CLEAR CLEAR 

 

1  

1

1

2

2

2

3

3

3

4

4

4

5

5

5

6

6

6

7

7

7

8

8

8

9

9

9

0

0

0