Sennheiser Set 840 User Manual

Wireless TV Listening System

Set 840-

TV

Instruction manual

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Contents

Contents

Safety instructions ................................................................. 2

Delivery includes ..................................................................... 4

Product overview .................................................................... 5

Putting the Set 840-TV system into operation ............... 6

Setting up the transmitter ............................................... 6

Connecting the transmitter to a sound source ............ 7

Connecting the transmitter to the mains ................... 11

Using the Set 840-TV system ............................................ 12

Switching the transmitter on/off ................................. 12

Switching the receiver on/off ........................................ 13

Adjusting the volume ...................................................... 14

Searching for a sound source ......................................... 14

Changing the transmission channel ............................. 15

Adjusting the balance ..................................................... 16

Switching between mono and stereo operation ........ 16

Individually enhancing the speech intelligibility ....... 17

Storing and charging the receiver ................................ 18

Charging a rechargeable battery in the

transmitter’s charging compartment .......................... 19

What if ... ................................................................................ 20

... this indicator lights up? .............................................. 20

... you press this button? ................................................ 21

... you change the position of this control/switch? ... 21

... you hear acoustic signals or warning signals? ....... 22

Cleaning the Set 840-TV system ....................................... 23

Cleaning the transmitter and the receiver .................. 23

Cleaning the ear pads ...................................................... 23

If a problem occurs ... ........................................................... 24

Additional technical information ...................................... 26

Accessories and spare parts ............................................... 28

Specifications ........................................................................ 29

Manufacturer Declarations ................................................. 31

Index ........................................................................................ 33

1

Safety instructions

Safety instructions

• Please read this instruction manual carefully and completely before
using the products.

• Make this instruction manual easily accessible to all users at all
times. Always include this instruction manual when passing the
products on to third parties.

• Do not use the products in situations which require special atten­tion (e.g. when performing skilled jobs).

• Always keep the products dry and do not expose them to extreme
temperatures.

• Use the products with care and set them up in a clean, dust-free
environment.

• Varnish or furniture polish may degrade the feet of the transmitter,
which could stain your furniture. You should therefore place
the transmitter on a non-slip pad to avoid potential staining of
furniture.

• Always maintain a distance of at least 3.94“ (10 cm) between the
ear cups and the cardiac pacemaker or implanted defibrillator since
the product generates permanent magnetic fields.

• This stethoset receiver allows you to set higher volumes than
conventional headphones. This can cause hearing damage in
persons with healthy hearing and especially in children.

• Refer all servicing to qualified service personnel. Servicing is
required when the apparatus has been damaged in any way, such
as power supply cord or plug is damaged, liquid has been spilled or
objects have fallen into the apparatus, when the apparatus has
been exposed to rain or moisture, does not operate normally, or has
been dropped.

• WARNING: To reduce the risk of fire or electric shock, do not expose
the products to rain or moisture.

• Use only the supplied mains unit.

• Disconnect the mains connector from the wall socket
– to completely disconnect the products from the mains,
– during lightning storms or when unused for long periods of time.

• Ensure that the mains unit is
– always readily operable and easily accessible,
– properly plugged into the wall socket,
– not covered or exposed to direct sunlight for longer periods of

time in order to prevent heat accumulation,

– only operated within the permissible temperature range (see

“Specifications” on page 29),

– not operated near heat sources.

2

Safety instructions

Intended use

Intended use includes

• having read this instruction manual, especially the chapter “Safety

instructions” on page 2,

• using the products within the operating conditions and limitations

described in this instruction manual.

“Improper use” means using the products other than as described in
this instruction manual, or under operating conditions which differ
from those described herein.

Safety instructions for the Lithium-Polymer rechargeable battery

The BA 300 is a Lithium-Polymer rechargeable battery. If abused or
misused, this rechargeable battery may be damaged. Please under­stand that Sennheiser does not accept liability for damage arising from
abuse or misuse.

WARNING!

In extreme cases, the rechargeable battery may even
present a

• heat hazard,

• fire hazard,

• explosion hazard,

• smoke and gas hazard.

Only charge rechargeable
batteries with the
appropriate Sennheiser
chargers.

Return defective devices
or exhausted recharge­able batteries to your
specialist dealer.

Do not heat above
70°C/158°F, e.g. do
not expose to sunlight
or throw into a fire.

When not using the
rechargeable battery for
extended periods of time,
charge it regularly (every
6 months for about 1 hour).

Do not short-circuit. Only charge rechargeable

batteries at ambient
temperatures between
10°C/50°F and 40°C/104°F.

Do not mutilate or
dismantle.

Do not charge the recharge­able battery if the device is
obviously defective.

Store the devices/

Do not expose to moisture.
rechargeable batteries in
a cool and dry place at
room temperature.

3

Delivery includes

Delivery includes

The Set 840-TV system is available as an EU and a
US version. The following table shows which items are
included with the respective version.

Components of the Set 840-TV system EU US

1 RR 840 stethoset receiver with BA 300

Lithium-Polymer rechargeable battery

1 TR 840 transmitter with integrated

charging compartments

1 NT 9-3AW mains unit with

2 country adapters (EU, UK)

1 country adapter (US)

1 connection cable

with two 3.5 mm stereo jack plugs
for connection to a headphone socket

1 audio adapter

(3.5 mm to

1 audio adapter for RCA socket

(e.g. TB/Aux-Out)

1 audio adapter for SCART socket

1 MKE 800 TV-N microphone

2 pairs of spare ear pads

1 instruction manual

1 installation manual

¼” (6.3 mm) jack plug)

4

Product overview

Product overview

The overview pictures of the stethoset receiver and the
transmitter can be found on the inside front cover of this
instruction manual.

Stethoset receiver

I

1 Channel indicator
2 Volume control
3 Balance control
4 Channel search button
5 Battery compartment

Transmitter

II

6 Charging compartment for receiver
7 Charging compartment for optional spare

rechargeable battery

8 Charging indicator for optional spare

rechargeable battery

9 Charging indicator for receiver’s

battery

0 Operation indicator
A “Speech intelligibility” button
B Indicator for the selected speech intelligibility
C Socket (marked blue) for connection of sound

source or external microphone

D ST/MO slide switch (stereo/mono)
E Treble adjustment control
F Channel selector switch
G DC socket (marked yellow) for connection of

mains unit

5

Putting the Set 840-TV system into operation

Putting the Set 840-TV system into
operation

Setting up the transmitter

왘 Choose a suitable place near your sound source (e.g. TV).

왘 Do not place the transmitter close to metal objects such

as shelf bars, reinforced concrete walls, etc. as this can
decrease the transmitter’s range.

It is not necessary that the transmitter and stethoset
receiver are in the same room, so you can move around
freely in the home or outside in the garden.

When the stethoset receiver leaves the range of the trans­mitter, it produces warning signals and then automatically
switches off after 3 minutes.

One transmitter can be used to transmit to several
stethoset receivers on the same frequency.

6

Putting the Set 840-TV system into operation

Connecting the transmitter to a sound source

왘 Switch your sound source (e.g. TV) off before connecting

the transmitter.

C

왘 Plug one end of the connection cable I into the blue

socket

왘 Check the available connection possibilities of your

C of the transmitter.

I

sound source (e.g. TV):

Connection possibility Name of connection possibility

A

B

Headphone socket

RCA socket

LR

C

SCART socket
(SCART adapter included with

EU version)

the

What if your sound source doesn’t have any of these
connection possibilities?

D

MKE 800 TV-N external
microphone
(included with the US version)

왘 Connect the transmitter as described in the corres-

ponding chapter

If possible, use the SCART connection

A, B, C

or D.

.

C

SCART adapter and microphone are also available as
accessories (see page 28).

7

Putting the Set 840-TV system into operation

Connecting the transmitter to a headphone socket

A

왘 Plug the other end of the

connection cable
headphone socket on your
sound source.

I into the

J

I

Is the plug on the connection
cable too small for the head­phone socket?

왘 Plug the adapter to ¼”

(6.3 mm) jack socket
the connection cable

왘 Adjust the volume of the headphone socket on your

J onto

I.

sound source to a medium level.
This improves the quality of wireless sound transmis­sion. For detailed information, please refer to the
instruction manual of your sound source (e.g. TV).

With most TVs, the headphone socket is located at
the front or sides.

Connecting the transmitter to an RCA socket

B

왘 Plug the audio adapter for

RCA socket
nection cable

왘 Connect the red connector of

the audio adapter

K onto the con-

I.

K

to the red
RCA socket R of your sound
source.

왘 Connect the white connector

of the audio adapter

K to the

white or black RCA socket L of
your sound source.

With most TVs, the RCA socket is located at the rear.

If your TV has several RCA sockets, use the socket

RCA output.

K

I

8

Putting the Set 840-TV system into operation

Connecting the transmitter to a SCART socket

C

왘 Plug the SCART adapter L

onto the connection cable I.

왘 Connect the SCART adapter L

I

L

to the SCART socket on your
TV.

If your TV has several SCART sockets, use the socket

SCART output.

Using the MKE 800 TV-N external microphone

D

What if your sound source doesn’t have any of the connec­tions mentioned above? You can then use the optional
MKE 800 TV-N microphone.

What if your sound source mutes the external loud­speakers if you use one of the connections mentioned
above?

왘 Via the operating menu of your TV, check if the muting

can be deactivated.

왘 If the muting persists, use the optional MKE 800 TV-N

microphone instead of the connection cable.

C

9

Putting the Set 840-TV system into operation

To connect the MKE 800 TV-N microphone:

왘 If possible, adhere the supplied Velcro tape directly in

front of the loudspeaker of your TV.

왘 Press the microphone onto the Velcro tape.

왘 Connect the jack plug of the microphone to the blue

socket

C of the transmitter.

You can change the sound by varying the position of
the microphone in front of the loudspeaker.

10

Putting the Set 840-TV system into operation

Connecting the transmitter to the mains

The EU and UK country adapters are included with the EU
version of the Set 840-TV; the US country adapter is
included with the US version of the Set 840-TV.

왘 Slide the supplied country

adapter
unit

왘 Connect the yellow connector

N onto the mains

M.

of the mains unit to the yellow
socket

왘 Plug the mains unit M into a

G of the transmitter.

wall socket.
The operation indicator

0

on the transmitter lights up
green.

When connecting the transmitter to the mains for
the first time, charge the rechargeable battery for
3 hours as described in the chapter “Storing and

3h

charging the receiver” on page 18.

If there is no audio signal from the sound source
for about 3 minutes, the transmitter automatically
switches off. The operation indicator

M

EU UK US

0 goes off.

N

G

M

To disconnect the transmitter from the mains, pull
out the mains connector from the wall socket.

When not using the transmitter for extended periods
of time (e.g. when you are on holiday), pull out the
mains connector from the wall socket. In this case,
however, the receiver’s rechargeable battery will not
be recharged.

11

Using the Set 840-TV system

Using the Set 840-TV system

To switch the Set 840-TV system on, proceed as follows:

Sequence of steps Page

1. Switch your sound source (e.g. TV) on. 12

2. Adjust the volume on the receiver to a low level. 14

3. Switch the receiver on. 13

4. Adjust the desired volume on the receiver. 14

5. If necessary, set a different channel on the
transmitter.

Switching the transmitter on/off

To switch the transmitter on:

왘 Switch your sound source on.

The transmitter automatically switches on. The opera­tion indicator

If the transmitter doesn’t switch on:

왘 Read the corresponding chapter on page 24.

To switch the transmitter off:

왘 Switch your sound source off.

The transmitter automatically switches off after
3 minutes. The operation indicator

0 lights up green.

0 goes off.

15

12

Using the Set 840-TV system

Switching the receiver on/off

CAUTION! Hearing damage due to high volumes!

This receiver allows you to set higher volumes
than conventional headphones. This can
cause hearing damage in persons with
healthy hearing and especially in children.

왘 Before putting the receiver on, set the

volume on the receiver to a low level.

왘 Do not continuously expose yourself to

high volumes.

Switching the receiver on

The receiver automatically switches
on when you pull the earbows
apart.

Putting the receiver on

왘 Put the receiver on the correct

way round, with the Sennheiser
logo facing away from your
body.
The ear pads adapt to the ear
form and thus increase the
wearing comfort.

Switching the receiver off

왘 Take the receiver off.

The receiver automatically switches off after 30 seconds.

If you are not within the range of the transmitter, the
receiver automatically switches off af

F

or how to store and charge the receiver, refer to page 18.

ter 3 minutes.

13

Using the Set 840-TV system

Adjusting the volume

왘 Use the volume control 2 to

adjust the volume to a sufficient
and comfortable level.

Searching for a sound source

왘 Put the receiver on.

The receiver automatically searches for one of the
3 channels of the transmitter and starts the channel
search on the last selected channel. If a channel is found,
the channel search stops.

Your hear the sound of the sound source found.

Depending on the channel found, the receiver produces
1, 2 or 3 beeps (see page 22) and the channel
indicator

1 on the receiver lights up as follows:

The channel indicator

1 goes off after 30 seconds so

that the light won’t disturb you in a dark room.

14

Using the Set 840-TV system

What if you don’t hear the desired sound source?

The channel search has possibly found another sound
source (e.g. from another nearby system).

To continue the channel search:

왘 Press the channel search

button

4 on the receiver

4

repeatedly until you have
found your sound source.

If you still cannot find your sound source:

왘 Change the transmission channel as described in the

next chapter.

왘 Read the chapter “If a problem occurs ...” on page 24.

Changing the transmission channel

If several transmitters are operated simultaneously and are
very close to one another, reception can be subject to inter­ference (e.g. hissing noise).

왘 Change, if necessary several

times, the position of the
channel selector switch
the transmitter to change to
an interference-free channel.

ou can choose between

Y
3 channels.

F on

F

왘 Press the channel search button 4 on the receiver to re-

start the channel search.

If reception is still subject to interference :

왘 Read the chapter “If a problem occurs ...” on page 24.

15

Using the Set 840-TV system

Adjusting the balance

The balance control allows for right/

3

left volume adjustment. Adjust the
balance so that you hear equally well
with both ears.

왘 Turn the balance control 3 to the

left L or right R in order to increase
the volume for the corresponding
ear.

Switching between mono and stereo operation

If, despite a correct balance adjustment, you can hear the
sound only with one ear:

왘 Set the ST/MO switch D

on the transmitter to MO
(mono).

D

Meaning of the terms “mono” and “stereo”

Stereo (ST) Mono (MO)

LR

L + R

Example: L: Speech from the left

R: Music from the right

You hear speech from
the left and music from

You hear speech and music
coming from the front.

the right.

16

Using the Set 840-TV system

Individually enhancing the speech intelligibility

The “speech intelligibility” button

B

A allows you to adjust the

sound to your individual needs.

Try out which setting works best
for you.

왘 Press the “speech intelligibility” button A repeatedly

until the sound is optimally adjusted to your needs.

Press the
button 1 x 2 x 3 x 4 x

Indicator B

is lit yellow

Setting 1 2 3 Default setting

If necessary, you can have the speech intelligibility fine
adjusted to your hearing ability (see page 26).

A

17

Using the Set 840-TV system

Storing and charging the receiver

Do not store the receiver on a glass dummy head, chair
armrest, or similar for long periods of time as this can
reduce the contact pressure of the earbows. Furthermore,
with the earbows pulled apart, the receiver remains
switched on.

왘 After use, place the receiver

into the transmitter’s charging
compartment
ting too much pressure.
The receiver automatically
switches off.
The Sennheiser logo can face
the operation indicator
or away from it.

6 without exer-

0

When the receiver is placed cor­rectly into the charging compart­ment, the indicator

red: The battery is being charged.
green: The battery is fully charged.

With a fully charged battery, the operating time is up

to 9 hours.

The transmitter remains switched on during
charging. If you have a second receiver, it can be used
with the transmitter while the discharged first
receiver is being charged.

Always store the receiver in the transmitter’s
charging compartment
charged. The intelligent battery charging technology
prevents overcharging.

9 lights up:

6 to ensure that it is fully

0

6

9

18

Using the Set 840-TV system

Charging a rechargeable battery in the transmitter’s charging compartment

You can charge the receiver’s rechargeable battery or a
spare BA 300 rechargeable battery (not included in the
delivery of the Set 840-TV) in the charging compart-

7 at the side of the transmitter.

ment

The spare battery offers extended listening time while the
discharged first battery is being recharged.

Before using the spare rechargeable battery for the
first time, charge it for at least 3 hours.

Removing and charging the receiver’s battery

To remove the receiver’s battery:

왘 Pull the battery out of the

receiver’s battery compart-

5.

ment

5

왘 Insert the receiver’s battery

into the charging compart-

7 at the side of the

ment

7

transmitter as shown.

8

When the battery is inserted correctly, the indicator 8

lights up:

red: The battery is being charged.

The charging time is approx. 3 hours.

green: The battery is fully charged.

왘 Insert the battery into the

receiver as shown.

왘 Slide the battery into the

battery compartment
far as it will go

.

5 as

5

19

What if ...

What if ...

... this indicator lights up?

Indicator Status Meaning

Channel
indicator
on the receiver

Operation
indicator
on the
transmitter

1

0

lit yellow The receiver has just

been switched on or
a button has just
been pressed.

flashes The distance between

receiver and transmitter
is too great.
The receiver switches
off after 3 minutes.

off The receiver is switched

on for more than

secs. and no button

30
has been pressed.

The receiver is
switched

lit green The transmitter is

switched on.

off The transmitter is

switched off.

off.

Charging
indicator

Charging
indicator

“Speech
intelligibility”
indicator
the transmitter

20

9

8

B on

lit red The rechargeable

battery is being
charged.

lit green The rechargeable

battery is fully charged.

lit yellow The speech intelligibility

enhancement is
switched on.

off The speech intelligibility

enhancement is
switched off.

What if ...

... you press this button?

Button Function Page

Channel search
button
the receiver

“Speech
intelligibility”
button
the transmitter

4 on

A on

Searches for the sound
source or a different channel

Selects one of the possible
settings in order to
individually enhance the
speech intelligibility

14

17

... you change the position of this control/switch?

Control/switch Function Page

Volume control 2

on the receiver

Balance control 3

on the receiver
Channel selector

switch
transmitter

ST/MO switch D

on the transmitter

F on the

Reduces or increases the
volume of the receiver

Increases the volume for
the left or the right ear

Selects a different
transmission channel

Sets the transmitter to
mono or stereo operation

14

16

15

16

Treble adjustment
control
transmitter

E on the

Treble adjustment is only
to be made by a hearing
aid technician / an expert

26

21

What if ...

... you hear acoustic signals or warning signals?

Acoustic signal Meaning

1 acknowl­edgement
beep

The channel search
button has been
pressed once briefly.

The channel search
button has been
pressed for 5

1–3 short
beeps

The receiver is set to
channel 1, 2 or 3.

Warning signal Meaning

6 short beeps The receiver does not

receive any signal
from the transmitter:

• The distance
between trans­mitter and receiver
is too great. The
receiver switches
off af

•

The transmitter
is switched off.

seconds.

ter 3 minutes.

2 long beeps The rechargeable

battery is almost flat.

To switch the acoustic signals on and off:

왘 Press the channel search

button

4 on the receiver for

4

approx. 5 seconds.
You hear a short acoustic signal.

Warning signals cannot be switched off.

22

Cleaning the Set 840-TV system

Cleaning the Set 840-TV system

Cleaning the transmitter and the receiver

CAUTION! Danger of electric shock and damage to the

device electronics!

Liquids entering the housing of the devices
can cause a short-circuit and damage the
electronics.

왘 Keep all liquids far away from the devices.
왘 Do not use any cleansing agents or solvents.

왘 Before cleaning, disconnect the transmitter from the

mains.

왘 Use only a slightly damp cloth to clean the devices.

Cleaning the ear pads

왘 Carefully remove the ear

H from the receiver.

pads

왘 Clean the ear pads H with

warm soapy water and rinse
thoroughly.

왘 Dry the ear pads H.

왘 Put the ear pads back on the receiver.

For reasons of hygiene, you should replace the ear

H from time to time. Spare ear pads are avail-

pads
able from your Sennheiser dealer (see “Accessories
and spare parts” on page 28).

H

23

If a problem occurs ...

If a problem occurs ...

The transmitter does not switch on

Possible cause Solution

Is the mains unit
connected correctly?

Is the sound source
switched on?

Is the volume of

sound source

the
sufficient?

You cannot hear anything

Possible cause Solution

Is the transmitter
placed close to
metal objects?

Are all connectors
connected correctly?

Is the operation
indicator

0 lit?

Check the connection of the
mains unit to the transmitter
and to the mains (see page 11

Switch your sound source on.

Set the volume on your sound
source to a medium level.

Choose a different place for
the transmitter. Make sure that
the transmitter is not placed
close to metal objects.

Check the connection between
the transmitter and your sound
source (see page 7

Check if the transmitter
is switched on (see page 12

).

).

).

Is the volume of
the sound source
sufficient?

Is the volume of the
receiver sufficient?

Is the rechargeable
battery inserted
properly into the
receiver and fully
charged?

24

Set the volume on your sound
source to a medium level.

Increase the volume by turning the
volume control

Remove the rechargeable battery
and reinsert it into the receiver.
If this doesn’t help: recharge
the rechargeable battery
(see page 18).

2 (see page 14).

You hear the sound only with one ear

Possible cause Solution

If a problem occurs ...

Is the balance
adjusted correctly?

Is the transmitter
set to mono?

Turn the balance control 3 to the

left or right (see page 16

).

Set the ST/MO switch D on the

transmitter to mono (MO)
(see page 16).

The sound of your sound source is hardly intelligible

Possible cause Solution

Is the speech intelli­gibility enhance­ment out of adjust­ment?

Is there another
transmitter

Press the “speech intelligibility”
button

A on the transmitter

repeatedly until the sound is
optimally adjusted to your
needs (see page 17

).

Change the transmission channel
(see page 15

).

operating in the
proximity?

Is the receiver still
within the trans-

Move the receiver closer to the
transmitter.

mitter’s range?

The loudspeakers of your TV are muted

Possible cause Solution

Some TVs have a
function that mutes
the loudspeakers
when you connect a
transmitter

Via the operating menu of your TV,
check if and how the muting can be
deactivated.

Use a different audio socket on
your TV or use the MKE 800 TV-N
external microphone.

If a problem occurs that is not listed in the above tables or if
the problem cannot be solved with the proposed solutions,
please contact your Sennheiser partner for assistance.

25

Additional technical information

Additional technical information

Fine adjusting the speech intelligibility

The speech intelligibility can be enhanced individually on the trans­mitter (see page 17). There are the following settings:

Setting

Default
setting

1 Compression

2 Treble boost

3 Compression and treble boost

Compression (settings 1 and 3)

Deterioration of the ability to hear quiet sounds as well as loud ones is
a typical symptom of old age. Compression compensates for these
volume differences by boosting the volume of quiet sounds and
reducing the volume of loud sounds if necessary.

Compression seems to put the speech in the foreground, making it
easier to understand.

Compression is self-regulating; once it has been activated, it is not
necessary to make any other settings.

Indicator B

lit yellow

Fine adjustment

No fine adjustment made

Treble boost (settings 2 and 3)

Another typical age-related phenomenon is the deterioration of the
hearing with regard to high frequencies. However, high frequencies are
important for the intelligibility of speech.

The treble boost makes the speech clearer and easier to understand.

With the treble boost (settings 2 and 3), additional fine adjustment is

possible using the treble boost control E at the rear of the transmitter.

26

E

Additional technical information

왘 Use a screwdriver to turn the treble

boost control E to the left or right

until the sound can be heard very
well.

The position “0” corresponds to a
minimum boost, the position “MAX”
corresponds to a maximum boost, and
the control is factory-preset to the
medium position.

Function of the treble boost control

By means of the transmitter’s steplessly adjustable treble boost
control

E, the audio signal is boosted as shown in the diagram. The

treble boost control E allows you to select one of the curves shown in

the diagram below.

dB

20

10

0.1 1 10

”MAX”

Factory preset

”0”

kHz

27

Accessories and spare parts

Accessories and spare parts

CAUTION! Danger of damage to the device!

Components from other manufacturers
(e.g. for power supply or rechargeable
battery) may cause damage to the device
and will invalidate the warranty.

왘 Use only original Sennheiser accessories

and spare parts.

For the Set 840-TV, the following receivers and stethoset
receivers are available from your specialist dealer:

Cat. No. Accessory/spare part

EU version
502025 RR 840 stethoset receiver
502026 RR 840 S receiver

US version
502027 RR 840 stethoset receiver
502014 RR 840 S receiver

The following Set 840-TV accessories are available from
your specialist dealer:

Cat. No. Accessory/spare part

500898 BA 300 spare rechargeable battery
528123 Ear pads (silicone, black), 5 pairs
528124 Ear pads (silicone, transparent), 5 pairs
528125 Ear pads (foam, black), 5 pairs
531428 10 swivel joints for ear pads
500974 MKE 800 TV-N external microphone (mono)
517627 Extension cable, 3 m (3.5 stereo jack plug)
502710 L 300 10-10 charger

28

Specifications

Specifications

System

Modulation FM, stereo
Carrier frequencies

EU version

US version
Frequency response 50 Hz–16,000 Hz
THD < 1%
Charging time for

rechargeable battery
Signal-to-noise ratio

(1 mV, peak deviation) typ. 70 dB (A)
Operating temperature 10°C to 40°C

Transmitter

RF radiated power

EU version

US version

Range

EU version

US version
Audio/microphone

connection
Power supply 9 V
Max. current

consumption

EU version

US version
Max. power consump-

tion (transmitter in
conjunction with the
NT 9-3AW mains unit)

Standby consumption approx. 0.5 W

Weight approx. 260 g
Dimensions approx. 112 x 146 x 58 mm

863.3/864.0/864.7 MHz

925.95/926.8/927.5 MHz

approx. 3 hours

max. 10 mW (EIRP)
max. 50 mV/m
(at a distance of 3 m)

up to 100 m
up to 100 ft

3.5 mm stereo jack socket

80 mA (w/o battery charging)
70 mA (w/o battery charging)

2.4 W (incl. battery and receiver
charging and with switched-on
transmitter)

(w/o battery charging)

29

Specifications

Receiver

Max. SPL 125 dB (SPL)
Power supply via BA 300 rechargeable Li-Pol

battery (3.7 V / 150 mAh)
Operating time up to 9 hours
Weight approx. 68 g (with BA 300)
Dimensions approx. 240 x 128 x 26 mm

NT 9-3AW mains unit

Nominal input voltage 100 V~ to 240 V~
Mains frequency 50–60 Hz
Nominal output voltage 9 V DC
Nominal output current 300 mA
Ambient temperature +5°C to +40°C

In compliance with

Europe:

EMC EN 301489-1/-9

Radio EN 301357-1/-2

Safety EN 60065

The devices can be operated license-free in most countries
of the European Union.

Approved by

Canada: Industry Canada RSS 210

IC: 2099A-840
USA:

FCC 47 CFR Part 15C

FCC-ID: DMOSET840

Transmitters that operate in the 863 – 865 MHz frequency
range can be used licence-free in the following countries:

AT, BA, BE, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS,
IT, LI, L

T, LU, LV, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK,

TR, UA.

The NT 9-3AW mains unit is certified in accordance with the
legal safety requirements of Europe, the United States,
Canada, China and Russia.

30

Manufacturer Declarations

Manufacturer Declarations

Warranty

Sennheiser electronic GmbH & Co. KG gives a warranty of
24 months on this product.

For the current warranty conditions, please visit our web­site at www.sennheiser.com or contact your Sennheiser
partner.

FOR AUSTRALIA ONLY

Sennheiser’s goods come with guarantees that cannot be
excluded under the Australian Consumer Law. Y
tled to a replacement or refund for a major failure and
compensation for any other reasonably foreseeable loss or
damage. Y
replaced if the goods fail to be of acceptable quality and the
failure does not amount to a major failure.

ou are also entitled to have the goods repaired or

ou are enti-

This warranty is in addition to other rights or remedies
under law. Nothing in this warranty excludes, limits or
modifies any liability of Sennheiser which is imposed by
law, or limits or modifies any remedy available to the
consumer which is granted by law.

To make a claim under this warranty, contact Sennheiser
Australia Pty Ltd, Unit 3, 31 Gibbes Street, Chatswood NSW
2067, Australia; Phone: [phone],
email: [e-mail].

All expenses of claiming the warranty will be borne by the
person making the claim.

The Sennheiser International Warranty is provided by
Sennheiser Australia Pty Ltd (ABN 68 165 388 312), Unit 3,
31 Gibbes Street, Chatswood NSW 2067, Australia.

31

Manufacturer Declarations

In compliance with the following requirements

• WEEE Directive (2012/19/EU)

Please dispose of the devices at the end of their
operational lifetime by taking them to your local
collection point or recycling center for such
equipment.

• Battery Directive (2006/66/EC)

The supplied batteries or rechargeable batteries
can be recycled. Please dispose of them as

special waste or return them to your specialist
dealer. In order to protect the environment, only dispose
of exhausted batteries.

CE Declaration of Conformity

•

0682

• R&TTE Directive (1999/5/EC)

• EMC Directive (2004/108/EC)

• Low Voltage Directive (2006/95/EC)

• RoHS Directive (2011/65/EU)

The declaration is available at www.sennheiser.com.

Before putting the devices into operation, please observe
the respective country-specific regulations.

32

Manufacturer Declarations

Statements regarding FCC and Industry Canada

This equipment complies with Part 15 of the FCC Rules and
with RSS-210 of Industry Canada. Operation is subject to
the following two conditions: (1) this equipment may not
cause harmful interference, and (2) this equipment must
accept any interference received, including interference
that may cause undesired operation.

This equipment has been tested and found to comply with
the limits for a Class B digital device, pursuant to P

art 15 of
the FCC Rules. These limits are designed to provide reason­able protection against harmful interference in a residen­tial installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause
harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause
harmful interference to radio or television reception, which
can be determined by turning the equipment off and on,
the user is encouraged to try to correct the interference by
one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and

receiver.

• Connect the equipment into an outlet on a circuit

different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician

for help.

This class B digital equipment complies with the Canadian
ICES-003.

Changes or modifications made to this equipment not
expressly approved by Sennheiser electronic Corp. may
void the FCC authorization to operate this equipment.

Before putting the equipment into operation, please
observe the respective country-specific regulations!

33

Index

Receiver

Adjusting the balance 16
Adjusting the volume 14
Automatic channel search 14
Charging the receiver 18
Cleaning 23
No sound signal 24
Operating elements 5
Operating time 18
Putting the receiver on/taking the receiver off 13
Reception is subject to interference 15
Searching for a sound source 14
Sound is hardly intelligible 25
Sound is only audible with one ear 25
Storing the receiver 18
Switching the acoustic signals off 22
Switching the receiver on/off 13

Rechargeable battery

Charging the rechargeable battery 19

Special functions

Fine adjusting the speech intelligibility 26
Treble boost control 27

Terms

Compression/treble boost 26
Mono/stereo 16

Transmitter

Changing the channel 15
Cleaning 23
Connection to a headphone socket 8
Connection to a SCART socket 9
Connection to a sound source 7
Connection to an RCA socket 8
Connection to the mains 11
Enhancing the speech intelligibility 17
Installation 6
Operating elements 5
Switching between mono and stereo operation 16
Switching the transmitter on/off 12
Troubleshooting 24
Using the MKE 800 TV-N external microphone 9

Versions

EU version 7
US version 7

Sennheiser electronic GmbH & Co. KG
Am Labor 1, 30900 Wedemark, Germany Publ. 09/13
www.sennheiser.com 528279/A03