RS 6 - Wireless Headphones SENNHEISER - Free user manual and instructions

Brand	SENNHEISER
Model	RS 6
Product type	Wireless headphones
Transmission frequency	433.40 - 434.50 MHz (European version) / 925 - 927.2 MHz (North American version)
Number of channels	3 switchable channels
Range	Up to 100 m (in open field)
Frequency response	20 - 20,000 Hz
Harmonic distortion	< 0.8 %
Transmitter power supply	12 V DC via power supply unit (230 V, 120 V or 240 V depending on version)
Transmitter power consumption	Approx. 1 VA
Receiver battery life	Approx. 3 h 30 with BA 150 rechargeable battery
Transmitter dimensions	130 x 140 x 40 mm
Transmitter weight	Approx. 90 g (without power supply unit)
Receiver dimensions	150 x 80 x 200 mm
Receiver weight	Approx. 160 g (with battery)
Main features	Wireless stereo transmission, individual volume adjustment on headphones, manual tuning, battery charging in transmitter, automatic power-on with standby
Maintenance and cleaning	Clean transmitter and receiver with a slightly damp cloth; do not use detergents or cleaning products
Safety	Do not open the device, keep away from heat sources, do not expose to moisture, use only the provided power supply unit, listen at moderate volume to protect your hearing
Spare parts and accessories	Replacement battery BA 150, charger L 150, additional receivers HDR 6 / HDR 6-9
General information	Approval: DGPT (France) agreement no. 96 0347 PPL 0; authorized use under RSS 210 conditions

Frequently Asked Questions - RS 6 SENNHEISER

How to install the transmitter?

Place the transmitter near your HiFi system. Connect the audio cable (3.5 mm or 6.3 mm jack) between the headphone output of your source and the AUDIO INPUT socket of the transmitter. Connect the power supply unit to the transmitter and then to a power outlet.

How to set the transmission channel?

Turn on the transmitter and the audio source. Select a channel (1, 2 or 3) with the CHANNEL switch on the transmitter. On the headphones, rotate the TUNE knob until you hear the signal clearly and the LED lights up. The setting is then stabilized by the AFC.

What to do if I hear no sound?

Check the audio connection between your source and the transmitter. Make sure the volume of the source is sufficient. Check that you are within the range (up to 100 m). Recharge the headphone battery if it is depleted. Verify that the receiver is set to the same channel.

How to charge the headphone battery?

Insert the BA 150 battery into the charging compartment on the transmitter. Charging is possible even if the transmitter is in standby. Before first use, charge the battery for 24 hours. During normal use, follow the ratio: usage time x 3 = charging time.

Can I use multiple headphones with the same transmitter?

Yes, an unlimited number of headphones can operate with a single transmitter. Each headphone must be set to the same transmission channel.

What to do if the sound is distorted or hissing?

The modulation level of the transmitter may be too low. Increase the volume of your audio source until the green LED on the transmitter flashes in rhythm with the music. If two transmitters interfere, choose another channel.

How to clean the headphones and transmitter?

Use a slightly damp cloth to clean the transmitter and headphones. Never use detergents or aggressive cleaning products.

What is the maximum range?

The range can reach up to 100 meters in open field, through walls and ceilings (except metal obstacles). The transmission remains clear even without direct line of sight.

Can I use this system outdoors?

Yes, you can listen in the garden in dry weather. The transmitter and power supply unit must remain indoors, protected from moisture.

How to protect my hearing with these headphones?

Listen at moderate volume. With headphones, you tend to turn the volume up louder than with speakers. Prolonged listening at high volume can permanently damage your hearing. Enjoy the sound quality even at low volume.

USER MANUAL RS 6 SENNHEISER

Line drawing of a Sennheiser ear with attached connector (no text or symbols)

Instructions for use 13

Notice d'emploi 23

Technical line drawing of a mechanical clamp or hook component (no text or symbols)

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Diagram showing hands holding a tool interacting with a device, with Chinese text labels and an arrow indicating direction.

SENSHIEER

Federal Approvals Office For Telecommunications Of The Federal Republic Of Germany

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Thank you for choosing Sennheiser! You have made an excellent choice. This product will give you reliable and cost-effective ease of operation over many years. All of Sennheiser's professional expertise and more than fifty years of experience have gone into the creation of this state-of-the-art product.

Please take a few moments to read these instructions carefully. We want you to enjoy your new wireless headphones quickly and to the full.

VERSIONS

RS 6

RF transmission on 433.40...434.50 MHz (European version)

RS 6-9

RF transmission on 925 ... 927.2 MHz (North-American version)

FEATURES

• Lightweight headphone, comfortable to wear
• Excellent sound quality
- Easy to operate
- The headphone operates on environmentally friendly rechargeable accuplugs (nickel-metal hydride)
• Volume can be set directly on the headphone
- Up to two accuplugs can be recharged in special compartments in the transmitter
- Plug-in mains unit available for different operating voltages
• Transmitter in a designer housing
- Three switchable transmission channels allow simultaneous operation of several systems
- Insensitive to interference due to special RF input filter

1 2 3 4 5 6 7 8 9 10 AUDIO INPUT 13-19V DC CHANNEL MADE IN GERMANY SENNEISER SENNEISER SANNHEISER

WIRELESS RF TRANSMISSION TECHNOLOGY

With this headphone system you can move around freely in the home or outside in the garden without the constrictions of a headphone cable! The RS 6 will transmit the stereo sound signal from your hi-fi system or any other sound source to the headphone receiver.

The Sennheiser system operates on a carrier frequency of approx. 434 MHz (RS 6) or approx. 926 MHz (RS 6-9), respectively. This frequency band has been licensed by the respective telecommunications authorities for “non-commercial use”, and apart from wireless sound transmission, it is also used for remote controls etc. (Please note: because of this, occasional interference may be experienced from e.g. car alarm radio keys.)

The maximum distance between transmitter and receiver should not exceed 100 m. Walls and ceilings are (almost) no obstacle, since radio waves travel through them. Transmission will remain clear and intelligible, and it is not necessary that transmitter and headphone receiver are in a direct line of sight. The only obstacle for radio waves are metal parts as e.g. in concrete constructions or wall coverings. They reflect radio waves.

Isometric line drawing of a multi-level residential or industrial space with buildings, trees, and vehicles (no text or symbols)

If several wireless RS 6 headphone systems are operated simultaneously and are very close to one another (e.g. on the next floor, at a neighbour's, or on the other side of the street) you have to agree on using different channels. For this purpose, the RS 6 system features three transmission channels, so everybody can transmit the music they want to listen to.

WHERE TO PLACE THE TRANSMITTER

Choose a suitable place near your hi-fi system.

Use the supplied cable to connect socket 8 on the transmitter to the headphone output socket of your hi-fi system. The cable is fitted with a 3.5 mm jack plug suitable for most headphone output sockets. For connection to 1/4" (6.3 mm) headphone outputs, use the supplied adaptor.
Connect the plug-in mains unit to socket 9 on the transmitter and plug the mains unit into a wall socket.

ANTENNA

The wire antenna is an integral part of the transmitter. For best transmission the antenna should be vertical. You can therefore

▶ leave the wire antenna dangling in a vertical position down behind the transmitter - or
(the better option) slide the supplied plastic tubing over the antenna and snap it into the clamps at the back of the transmitter:

Technical diagram showing hand-drawn steps for assembling a mechanical component with labeled parts and directional arrows

Make sure that there are no metal objects such as shelf bars or lamp stands in parallel with the antenna. Do not place the transmitter on a TV set as it might interfere with the transmitter. Test where exactly in the room the transmitter works best.

AUTOMATIC ON/OFF SWITCHING

The transmitter features a convenient automatic on/off function:

When an audio signal reaches the transmitter, it is switched on. The LED 6 at the front lights up green.
If there is no audio signal for about 3 minutes, the transmitter automatically switches off and the LED 6 goes off. The transmitter is now in stand-by mode, its power consumption is very low so that it can remain connected to the mains.

IMPORTANT

The transmitter's charging function (charging compartments 7) is independent of the automatic on/off function. Accuplugs can always be recharged when the transmitter is connected to the mains.

Insert the BA 150 rechargeable accuplug into the battery compartment 3 on the headphone receiver.

SWITCHING THE HEADPHONE RECEIVER ON

Switch on the headphone receiver and adjust the volume with control 4.

ADJUSTING THE RECEIVER CHANNEL

Transmitter and headphone receiver have to work on the same frequency:

Put the transmitter and the headphone receiver into operation as described above. Switch on the signal source! If possible, switch off its loudspeakers.
Select a transmission channel (1, 2 or 3) on the transmitter with switch 10.
Adjust the volume control 4 on the headphone until you can hear a low hissing.
Slowly turn control ① ("TUNE") on the headphone until you can hear the audio signal loud and clear. Tuning noise should now stop and the LED ② should be lit. The receiver's AFC (Automatic Frequency Control) circuitry stabilises your adjustment.

Transmitter and headphone receiver are now operating on the same frequency.

CHANNEL 1 2 3 CHANNEL 1 2 3 CHANNEL 1 2 3

Your neighbour also likes listening to music with an RS 6? No problem! With switch 10, you simply select a different channel on each transmitter. Then set the headphone receivers to the respective frequencies (with control 1, as described above). Observe a minimum distance of 2 m between two transmitters.

ADJUSTMENTS ON YOUR HI-FI SYSTEM

Please refer to the instruction manual of your hi-fi system to find out whether the volume control also adjusts the headphone output or whether the output has to be regulated separately. You will also find instructions on how to switch off the loudspeakers.

OPTIMUM MODULATION LEVEL OF THE TRANSMITTER

First, set the volume of your hi-fi system to a medium value.
The T 6 transmitter is fitted with an automatic modulation control which prevents overmodulation of the transmitter. The green LED 6 on the front panel indicates optimum modulation. Now adjust the volume on the hi-fi system such that the LED 6 blinks in time with the music, this indicates the correct transmission level.

IMPORTANT!

Only use the transmitter with the suitable Sennheiser mains unit included in the supply schedule. Always disconnect the mains plug when you want to change connections or move the device to a different place.
Never open electronic devices! This must only be done by authorised personnel and is all the more valid for repairs on current-carrying units.
Keep the system away from central heating radiators and electric heaters. Never expose it to direct sunlight.
Use the system in dry rooms only. Transmitter and plug-in mains unit should always remain in the home. You can use the headphone receiver outside if the weather is dry.
▶ Use a damp cloth for cleaning the transmitter and the headphone receiver. Do not use any cleansing agents or solvents.

VOLUME UP? - NO!

When people use headphones, they tend to choose a higher volume than with loudspeakers. Listening at high volume levels for a long time can lead to permanent hearing defects. Please protect your hearing, Sennheiser headphones also sound exceptionally good at low volumes...

WHAT TO DO IF ...

... the volume is up but you cannot hear anything:

... the sound is distorted:

... the sound is slightly noisy:

... you can hear twittering and chirping, and the sound is “squeezed”:

There is no audio signal available. Check the transmitter connection. Is the volume at the headphone socket of your hi-fi system or TV sufficient?
Are you still within the transmitter's range?
Is the receiver on the same frequency as the transmitter?
The headphone accuplug has gone flat, please recharge it immediately.
You are about to leave the transmitter's maximum range. Soon transmission will be interrupted completely.
The transmitter's modulation level is too low. Increase the volume on your hi-fi system (see also page 18).
▶ Two transmitters are interfering! Choose a different transmission channel.

ACCESSORIES

BA 150

• L 150

• HDR 6 or HDR 6-9

The following items are available to complement your system:

Rechargeable accuplug as a spare, for use when the supplied accuplug is being recharged

Charger for recharging additional BA 150 accuplugs (recommended when more than two headphone receivers are used with one transmitter)

Additional headphone receivers

CHARGING CYCLE OF RECHARGEABLE BATTERIES

The charging time of your accuplug 5 depends on how long you have used the headphone receiver. General rule:

OPERATING TIME x 3 = CHARGING TIME
Example:

RECHARGING THE BA 150 ACCUPLUG

Do not use rechargeable batteries until they are completely flat. If you do, they will be exhausted and cannot be recharged. This happens e.g. when flat accuplugs remain uncharged for some time. Please observe the two following rules:

If you notice that the accuplug is going flat, turn off the headphone and recharge the battery immediately. If you have a spare accuplug you can use it in the meantime.
Immediately recharge the accuplug after every use, no matter whether it is fully or only partly discharged.
Before using the accuplug for the first time, you should charge it for 24 hours in the transmitter's charging compartment 7.

Please note: the accuplug is also recharged when the transmitter is switched off but remains connected to the mains.

ENVIRONMENT AND HEALTH

Devices which operate on rechargeable batteries are environmentally friendly. They can be recharged many times whereas standard batteries are hazardous waste after use. In case an accuplug is defective or has been damaged due to exhaustive discharge, it can be recycled. Just return it to your specialist dealer. Here you can also get new Sennheiser accuplugs.

According to today's scientific knowledge, the radio waves emitted by this device are by no means harmful.

TECHNICAL DATA

Modulation

Range

Audio frequency response

THD

Power supply

Power consumption of transmitter

RF output power

Signal-to-noise ratio

Frequencies T 6

Frequencies T 6-9

Audio input voltage / Audio connector

Charging compartments

Weight / Dimensions

Transducer principle

Signal-to-noise ratio

Max. sound pressure level

Tuning range HDR 6

Tuning range HDR 6-9

Power supply

Current consumption / Operating time

Weight / Dimensions

SUPPLY SCHEDULE

RS 6 SYSTEM

FM stereo

up to 100 m

20 - 20,000 Hz

< 0.8 %

T 6 TRANSMITTER

12 V DC via plug-in mains unit NT 92

approx. 1 VA

typ. 1.2 mW

typ. 70 dB

433.40 MHz, 434.13 MHz, 434.50 MHz (channels switchable)

925.40 MHz, 926.15 MHz, 926.50 MHz (channels switchable)

10 mV - 3 V / 3.5 mm stereo jack plug + 1/4" (6.3 mm) adaptor

2, for BA 150

approx. 90 g (without plug-in mains unit) / 130 x 140 x 40 mm

HDR 6 HEADPHONE RECEIVER

open

65 dB

105 dB

433 - 435 MHz, stepless

925 - 927.2 MHz, stepless

via BA 150 rechargeable accuplug, 2.4 V

approx. 18 mA / approx. 3.5 hrs per accuplug

approx. 160 g incl. accuplug / 150 x 80 x 200 mm

1 T 6 or T 6-9 transmitter

1 HDR 6 or HDR 6-9 headphone receiver

1 BA 150 rechargeable accuplug

1 plug-in mains unit, 12 V DC, for 230, 120 or

240 V mains voltage

1 connection cable with 3.5 mm/6.3 mm (1/4") jack plug adaptor

1 Plastic tubing

1 RCA adaptor stereo (US-Version only)

1 instructions for use

RSS 210 MANUEL STATEMENT

Operation is subject to the following two conditions:

① This device may not cause interferences and
2 This device must accept any interference, including that may cause undesired operation of the device.
Privacy of communications may not be ensured when using this telephone.

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Diagram showing hands holding a tool with a ruler and a schematic diagram above, likely illustrating a measurement or design procedure.

SUNNHETER CHANNEL

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Isometric line drawing of a multi-level residential or industrial space with trees, lighting fixtures, and a vehicle (no text or symbols)

Technical diagram showing hands using a tool to adjust or install a component with labeled parts and directional arrows

SENNEISER Spring Spring

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SENNEHERN CHANNEL

Technical line drawing of a mechanical clamp or hook component (no text or symbols)

Isometric line drawing of a multi-level residential or industrial space with trees, lighting fixtures, and a car (no text or symbols)

Diagram showing hands holding a tool interacting with a mechanical component, labeled with part numbers and Chinese characters.

Diagram showing hand operating a device with labeled components including 'SENSHETER' and 'CHANNEL'

1 zender T 6 of T 6-9

Subject to alterations