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

USER MANUAL RS 6 SENNHEISER

RS 6 / RS 6-9 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

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. 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.

Choose a suitable place near your hi-fi system.

PUTTING THE TRANSMITTER INTO OPERATION

왘 Use the supplied cable to connect socket 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. 왘 Connect the plug-in mains unit to socket 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 왘 leave the wire antenna dangling in a vertical position down behind the transmitter - or 왘 (the better option) slide the supplied plastic tubing over the antenna and snap it into the clamps at the back of the transmitter: 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: 왘 When an audio signal reaches the transmitter, it is switched on. The LED at the front lights up green. 왘 If there is no audio signal for about 3 minutes, the transmitter automatically switches off and the LED 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 ) 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 on the headphone receiver.

SWITCHING THE HEADPHONE RECEIVER ON

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

ADJUSTING THE RECEIVER CHANNEL

Transmitter and headphone receiver have to work on the same frequency: 왘 Put the transmitter and the headphone receiver into operation as described above. Switch on the signal source! If possible, switch off its loudspeakers. 왘 Select a transmission channel (1, 2 or 3) on the transmitter with switch . 왘 Adjust the volume control on the headphone until you can hear a low hissing. 왘 Slowly turn control ("TUNE") on the headphone until you can hear the audio signal loud and clear. Tuning noise should now stop and the LED 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.

SIMULTANEOUS OPERATION OF SEVERAL SYSTEMS

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

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 on the front panel indicates optimum modulation. Now adjust the volume on the hi-fi system such that the LED 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...

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 sound is distorted:

The headphone accuplug has gone flat, please recharge it immediately. ... the sound is slightly noisy:

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. ... the volume is up but you cannot hear anything: ... you can hear twittering and chirping, and the sound is “squeezed”: ACCESSORIES The following items are available to complement your system:

BA 150 Rechargeable accuplug as a spare, for use when the supplied accuplug is being recharged

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

HDR 6 or HDR 6-9 Additional headphone receivers

The charging time of your accuplug depends on how long you have used the headphone receiver. General rule: OPERATING TIME x 3 = CHARGING TIME Example: listening: 1 hr recharging: 3 hrs listening: 2 hrs recharging: 6 hrs listening: 3 hrs recharging: 9 hrs

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: 왘 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. 왘 Immediately recharge the accuplug after every use, no matter whether it is fully or only partly discharged. 왘 Before using the accuplug for the first time, you should charge it for 24 hours in the transmitter’s charging compartment . 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 RS 6 SYSTEM FM stereo up to 100 m

‹ 0.8 % 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 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 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

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 SUPPLY SCHEDULE

T 6 or T 6-9 transmitter HDR 6 or HDR 6-9 headphone receiver BA 150 rechargeable accuplug plug-in mains unit, 12 V DC, for 230, 120 or 240 V mains voltage connection cable with 3.5 mm / 6.3 mm (1/4") jack plug adaptor Plastic tubing RCA adaptor stereo (US-Version only) instructions for use

Operation is subject to the following two conditions: This device may not cause interferences and 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.

These operating instructions are the size of a CD jewel box. If you keep it with your CDs, it will always be at hand when you need to look something up.