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INSTALLATION AND 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

 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 

 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 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 

 to the

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

 will receive

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
in here.

Power to this outlet 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 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.

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!

Right Front

Speaker

Left Front

Speaker

OPERATION

The HK 3470 is simple to operate, and very simi-
lar 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 but-
ton 1 on the front panel to turn the unit on.
This places the unit in a standby mode, as indi-
cated 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 ses-
sion 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.
Power to any equipment plugged into the rear
panel Switched AC Outlet

 will be shut off

and the Power Indicator 3 will turn amber.

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.

Note that due its EEPROM backup system the
HK3470 will retain information such as pro-
grammed presets virtually indefinitely (see
”Memory Backup”, page 19).

• 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 89!#$&.

• 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 buttons.
The volume level is displayed by the position 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 mini-
mum volume level when the Volume Indicator
Ú

points to 7 o’clock; when the Volume

Indicator Ú points to 5 PM, the HK 3470 is
playing at the maximum volume level. It is
important that you make sure never to exceed
this maximum volume level at any time, in order
to avoid possible damage to your loudspeakers
due to “clipping”, a type of distortion that is not
audible to the human ear until it is severe
enough to permanently damage most loud-
speakers. It is also possible, depending upon the
program material, for clipping to occur at vol-
umes below the maximum volume level.

• To temporarily silence all speaker outputs,
press the Mute button ®5. This will cut the
output to all Pre and Sub Outs and to all speak-
ers, but it will not affect any recording or dub-
bing that may be in progress. When the system
is muted, the MUTE indicator K 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 6,3 mm 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 button 6
or 7 on the front panel corresponding to the
desired speakers or press them both to listen to
both speakers pairs. 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.

IMPORTANT NOTE: When two speaker pairs
are connected to the HK3470RDS and are to  be
used simultanously, the impedance of each
speaker must not be lower than 8 Ohms.

• 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 follow-
ing 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 (to Standby
mode). Note that the front panel display will dim
to one-half brightness when the Sleep function
is programmed. To cancel the Sleep function,
press the Sleep button (© or simply hold it
pressed for some seconds until the Sleep
indicator numbers disappear and the Main
Information Display shows the current source.
Pressing any control button while the Sleep con-
trol 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 exclusive
VMAx mode, Press the VMAx button ^†.
When the VMAx circuits are engaged, patented
processing algorithms are used to create 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 without the need
to add additional speakers. To return to standard
stereo listening, press the VMAx button ^†
again and note that the VMAx Mode
Indicator A will go out.
(For more information on maximum benefit with
VMAx see page 11, item †).

90

min

80

min

70

min

60

min

50

min

40

min

30

min

20

min

10

min

OFF

OPERATION  

The HK 3470’s tuner is capable of tuning AM, FM
and FM Stereo broadcast stations. Stations may
be tuned manually or automatically, 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.

3. To automatically search for the next higher- or
lower-frequency station that has an acceptable
signal hold the Tuning 

D

or 

E

button ) on

the front or î or ü on the remote pressed and
release it as soon as the tuner starts the frequen-
cy search. To tune to the next station, press the
button again. Tap the Tuning button )Ü to
advance one frequency increment at a time, or
press and hold it to locate a specific station.
When the TUNED indicator G lights, the station
is properly tuned and should be heard with clari-
ty.

4. Stations may also be tuned directly by pressing
the Direct button ∆, and then pressing the
Numeric Keys ˚ that correspond to the sta-
tion’s frequency. The desired station will auto-
matically be tuned.

NOTE: When the FM reception of a stereo
station is weak, audio quality will be increased
by switching to Mono mode by pressing the FM
Mode button * ß until the STEREO indicator
F

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 E and PRESET C
indicators will light and flash in the Main Infor-
mation Display.

2. Within five seconds, press the Numeric Keys
˚

corresponding to the location where you wish

to store this station’s frequency.

For all preset numbers above ”3” the station will
be stored directly. Note that for the presets 1, 2
or 3 either you press the corresponding number
and wait for 5 seconds or you press a ”0” befor
you press the 1,2 or 3, then the station will be
stored at once.

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

Auto Preset
• Preset stations may also be programmed auto-
matically for the entire FM band. To automatical-
ly enter each station that may be tuned with
acceptable quality into the HK 3470’s preset
memories, first select the FM band. Next, press
and hold the Auto Preset button ¬ until the
MEMO E and PRESET C indicators begin to
flash, hold on until 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.
If the FM tuner finds fewer than 30 FM stations
with acceptable signal strength, the Auto Preset
tuning will scan two more cycles or until the
remaining vacant preset memory spaces have
been filled with those found in the first scan.
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 or
the Auto Preset button ¬ is pressed again.

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 memo-
ry, or it may enter the same station on more than
one frequency. These unwanted stations may be
removed from the memory using the Preset Clear
function outlined 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 mem-

ory 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 buttons % ∂ on the front panel or
remote, or by entering the preset number directly,
using the Numeric Keys ˚.

When the preset station to be removed has been
tuned, first press the Memory button ø. The
MEMO E and PRESET C 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 different station to that
location, or leave it empty.

The HK 3470 RDS is equipped with RDS (Radio
Data System), which brings a wide range of infor-
mation to FM radio. Now in use in many coun-
tries, RDS is a system for transmitting station call
signs or network information, a description of
station program type, text messages about the
station or specifics of a musical selection and the
correct time.

As more FM stations become equipped with RDS
capabilities, the HK3470 RDS will serve as an
easy-to-use center for both information and
entertainment. This section will help you take
maximum advantage of the RDS system.

RDS Tuning
When an FM station is tuned in and it contains
RDS data, the HK 3470 RDS will automatically
display the station’s call sign and the RDS indi-
cator P will light in the Information Display as
well as indicators for the RDS services program
type PTY O (see below) and traffic announce-
ment TA L (see page 16) if transmitted by the
station. As soon as a radiotext message is
received completely the radiotext indicator RT M
will turn on too.

RDS Display Options
The RDS system is capable of transmitting a wide
variety of information in addition to the initial
station call sign that appears when a station is
first tuned. In normal RDS operation the display
will indicate the station name, broadcast network
or call letters, with some private stations also
other information, changing every 2 to 5 seconds.
Pressing the RDS Display button enables
you to cycle through the various data types in the
following sequence:

16 OPERATION

• The Station name (or other Program informa-
tion with some private stations).

• The station’s frequency.

• The Program Type (PTY) as shown in the fol-
lowing list in this manual.

• A “text” message (RT) containing special infor-
mation from the broadcast station. Note that this
message will scroll across the display to permit
messages longer than the eight positions in the
display. Depending on signal quality it may take
up to 30 seconds for the text message to appear,
in the meantime the word TEXT will flash in
the display when RT is selected.

• The current time of day (CT) as transmitted by
the station. It may take up to two minutes for the
time to appear, in the meantime the word
TIME

will flash in the display when CT is

selected. Note that the accuracy of the time mes-
sage is set by the radio station, not the HK 3470
RDS.

• Some RDS stations may not choose to include
some of these additional features. If the data
required for the selected mode is not being trans-
mitted, the Information Display I will show
a N O PTY, N O TEXT or N O TIME
message after the individual time out.

• In any FM mode the RDS function requires a
strong enough signal for proper operation. If you
receive a partial message or see any RDS indica-
tor going on and off, try slowly adjusting the
antenna to improve the signal strength or tune
to another, stronger, RDS station.

Program Search (PTY)
A major benefit of RDS is its ability to encode
broadcasts with Program Type (PTY) codes that
indicate the type of material being broadcast. The
following list shows the abbreviations used to
indicate each PTY along with an explanation of
the PTY:

• RDS O NLY: (see item 3 below)

• TRAFFIC: Traffic Information 

and Road Conditions (see Note below)

• POP M: Popular Music

• ROCK M: Rock Music

• M.O.R M: Middle-of-the-

Road Music

• LIGHT M: Classical Music

• CLASSICS: Serious Classical Music

• OTHER M: Other Music

• NEWS: News

• INFO: Information

• SPORT: Sports

• AFFAIRS: Current Affairs

• EDUCATE: Educational

• DRAMA: Drama

• CULTURE: Culture

• SCIENCE: Science

• VARIED: Varied Speech Programs

• WEATHER: Weather Information

• FINANCE: Financial Programs

• CHILDREN: Children’s Programs

• SOCIAL: Social Affairs Programs

• RELIGION: Religious Broadcasts

• PHONE IN: Phone-In Programs

• TRAVEL: Travel and Touring

• LEISURE: Leisure and Hobby

• JAZZ: Jazz Music

• COUNTRY: Country Music

• NATION M: National Music

• OLDIES: Oldies Music

• FOLK M: Folk Music

• DOCUMENT: Documentary Programs

• TEST: Station Alarm Test Message

• ALARM: Emergency Broadcast Information

You may search for a specific Program Type (PTY)
by following these steps:

1. Press the RDS PTY button 

and note that

the Information Display will show SELECT
PTY

.

2. After three seconds, the display will show the
PTY that was selected for the last PTY search. If
you wish to use the same PTY, press the RDS
PTY button 

again within six seconds, and

the tuner will begin to search for the first station
with the appropriate PTY and acceptable signal
strength.

3. To search for a different PTY, press the Tuning
Up/Down buttons îü ) while the last PTY
selected is still displayed to scroll through the list
of available PTY types. To search for the next
available station with any RDS data, select RDS
ONLY

as the PTY type.

4. When the PTY is selected, press the RDS PTY
button 

within six seconds, and note the PTY

indicator O will flash in the Information Display.
The HK 3470 RDS will go into an automatic
search mode and attempt to find the next station
with acceptable signal strength that matches the
desired PTY type. Press the RDS PTY button 
twice again to find another matching station.

When a station is tuned, the search will stop, a
message RDS will blink in the Information
Display I and then the Display will show the
station’s “Call Letters” or other “Program Ser-
vice” information.

5. While the PTY Indicator O flashes in the
display the tuner will make one complete scan of
the entire FM band for the text station that
matches the desired PTY type and has acceptable
reception quality. If no such station is found, the
word NONE will appear briefly in the Informa-
tion Display, and the tuner will return to the last
FM station in use before the search.

NOTE: Many stations do not transmit a specific
PTY. The display will show NONE, when such a
station is selected and PTY is active.

NOTE: Some stations transmit constant traffic
information. To identify as traffic station, they
transmit a specific traffic code constantly, which
causes the TA Indicator L to light in the 
display. These stations can be found by selecting
TRAFFIC, the second option in the PTY list. The
HK 3470 will find the appropriate station, even if
it is not broadcasting traffic information when
the search is made.

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 lis-
tening 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 J 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.

As long as Tape Monitor 9 ç is selected the
previously selected input source remains routed
to the Record Outputs

 . Press the Tape

Monitor Input Selector 9 ç again to turn
the monitoring off and listen to the actual input
source. Note that changing the Bass, Treble or
Balance control will not affect the recordings,
only the preamp and speaker outputs.