EVOLUTION WIRELESS EW 300 - Wireless Microphone SENNHEISER - Free user manual and instructions

USER MANUAL EVOLUTION WIRELESS EW 300 SENNHEISER

BNC-Buchse, Antenneneingang I (ANT I) 9-V-Block, Alkali-Mangan, 6 LR 61 ≤ 60 mA >8h !> 8 h 110 x 65 x 22 !Ø 50 x 225 ca. 255 g !ca. 450 g Mikrofone

MD 835 dynamisch 1,5 mV/Pa 150 dB SPL Niere 518 – 550 MHz 630 – 662 MHz 740 – 772 MHz 790 – 822 MHz 838 – 870 MHz evolution wireless Series w 300

Contents Chap. Contents

Page Thank you for choosing Sennheiser! We have designed these products to give you reliable operation over many years. Please take a few moments to read these instructions carefully, as we want you to enjoy your new Sennheiser products quickly and to the full.

Short description With the evolution wireless Series ew 300, Sennheiser offers musicians, video and sound amateurs, reporters and local broadcasters high-quality state-ofthe-art RF transmission systems with a high level of operational reliability and ease of use. Transmitters and receivers permit wireless transmission with studio-quality sound. Due to further optimised PLL and microprocessor technology, the HDX noise reduction system and true diversity technology, these transmission systems ensure interference-free transmission and minimise dropouts in the RF link. The systems can be supplied in five frequency ranges within the UHF band. Please note: Frequency usage is different for each country. Your Sennheiser agent will have all the necessary details on the available legal frequencies for your area. Range A: Range B: Range C: Range D: Range E: ew 300 transmitters and receivers are 8-channel switchable. Each transmitter and receiver has 8 frequency memories to store your selection out of 8 transmission/receiving frequencies. The frequencies are selectable in 25-kHz steps, giving a selection of 1280 frequencies within the preset 32 MHz frequency range. Each system has 8 factory-preprogrammed frequencies, so that – the systems are ready for immediate use after switch-on, – several systems can be operated simultaneously on the factory-preset transmission and receiving frequencies without causing intermodulation interference. However, all frequency settings can be changed to your individual needs, if required. Each system consists of – a mains receiver, – a hand-held or a pocket transmitter and – comes complete with all necessary accessories.

Important notes Never open electronic devices! This must only be done by authorised personnel and is all the more important for units connected to AC outlets. If devices are opened by customers in breach of this instruction, the warranty is voided. Always disconnect the devices from the mains by removing the plug when you wish to change connections or move the devices to a different place. Keep the devices away from central heating radiators and electric heaters. Never expose them to direct sunlight. Use the devices in dry rooms only. Use a damp cloth for cleaning the devices. Do not use any cleansing agents or solvents.

System variants Set w 312 This system is ideal for theatre and presentation use. The unobtrusive clipon microphone is virtually invisible, and its omni-directional pattern minimises drop-outs caused by the speaker turning his/her head. Set ew 312 consists of: EM 300 receiver, SK 300 pocket transmitter, ME 2 miniature clip-on omni-directional condenser microphone, plug-in mains unit, battery, antennas and operating manual. Set w 322 EM 300 This system is ideal for presentation and PA applications in acoustically difficult rooms. The unobtrusive cardioid clip-on microphone can be directed towards the speakers mouth. Set ew 322 consists of: EM 300 receiver, SK 300 pocket transmitter, ME 4 miniature clip-on cardioid condenser microphone, plug-in mains unit, battery, antennas and operating manual. Set w 335 This system is ideal for vocal applications. Set ew 535 consists of: EM 300 receiver, SKM 300 hand-held transmitter with MD 835 cardioid dynamic microphone module, plug-in mains unit, battery, antennas, microphone clamp and operating manual. Set w 345 This system is ideal for vocal applications in venues with high ambient noise levels. The super-cardioid dynamic microphone head has excellent feedback rejection. Set ew 345 consists of: EM 300 receiver, SKM 300 hand-held transmitter with MD 845 super-cardioid dynamic microphone module, plug-in mains unit, battery, antennas, microphone clamp and operating manual. SK 300 Set w 352 This system is ideal for hands-free vocal applications. Supplied complete with the ME 3 headmic (which has superb feedback rejection), this system gives complete freedom of expression to stage vocalists as well as proving a boon to sports commentators/referees and aerobic instructors. Set ew 352 consists of: EM 300 receiver, SK 300 pocket transmitter, ME 3 condenser super-cardioid headmic, plug-in mains unit, battery, antennas and operating manual. SKM 300

Set w 365 This system, due to its excellent feedback rejection and wide dynamic range, is the ideal choice for vocals and presentations. Set ew 365 consists of: EM 300 receiver, SKM 300 hand-held transmitter with ME 865 super-cardioid condenser microphone module, plug-in mains unit, battery, antennas, microphone clamp and operating manual. Set w 372 ME 2 omni-directional clip-on microphone with microphone clip This system is for connecting musical instruments (e.g. guitar) which have a /4” (6.3 mm) jack socket directly to the pocket transmitter. Set ew 372 consists of: EM 300 receiver, SK 300 pocket transmitter, CI 1 instrument (guitar) cable, plug-in mains unit, battery, antennas and operating manual. ME 4 cardioid clip-on microphone with microphone clip ME 3 headmic

Preparing the devices for use EM 300 receiver

Cable grip for power supply DC cable

DC socket for connection of mains unit (DC-IN)

AF output, XLR-3M socket (AF OUT BAL/UNBAL)

AF output level control (AF LEVEL)

Antenna input I (ANT I), BNC socket Mounting the rubber feet To ensure that the receiver cannot slip on the surface on which it is placed, four self-adhesive soft rubber feet are supplied. These feet are stuck into the recesses on the bottom side of the receiver. (N.B.: Do not use these feet if rackmounting the receiver).

Ensure that the recesses are clean and free from grease before fixing the feet. Attention! Some furniture surfaces have been treated with varnish, polish or synthetics which might cause stains when they come into contact with other synthetics. Despite a thorough testing of the synthetics used by us, we cannot rule out the possibility of discolouration, since we don’t know your furniture. Connecting the antennas The EM 300 receiver can be used with either telescopic antennas (supplied) or remote antennas (available as accessories). The supplied telescopic antennas can be mounted quickly and easily to the rear of the receiver and are suitable for all applications where – good reception conditions provided – a wireless transmission system is to be used without a large amount of installation work.

Connect the telescopic antennas to BNC sockets + and , at the rear of the receiver. Pull the antennas out and align them upwards in a V-shape. If the receiver position is not the best antenna position for optimum reception, you can use remote antennas. These are available as accessories. Connecting the mains unit

Insert the DC connector on the power supply output cable into socket - at the rear of the receiver.

Pass the cable through the cable grip .. Connecting the amplifier/mixing console

Connect the amplifier/mixing console either – to the XLR-3M socket / or – to the 1/4” (6.3 mm) jack socket 0. For information on balanced and unbalanced connection, please refer to the chapter “9 Overview”.

Switching the receiver on/off

Press the POWER button 1 to switch the receiver on.

To switch the receiver off, press the POWER button until “OFF” appears on the display. You can then release the button. After a power failure, the device returns to the previous setting (ON/OFF). Adjusting the AF output level

Use the AF output level control * to adjust the AF signal level that appears at outputs / and 0. SK 300 pocket transmitter

Red LED for operation and battery status indication (ON/LOW BAT)

Yellow LED for AF peak (AF PEAK)

Cover plate for battery compartment

Cover plate for display and operating controls

Inserting and changing the battery

Slide the cover of the battery compartment $ in the direction of the embossed arrow until it clicks audibly.

Insert the 9 V PP3 battery (IEC 6 LR 61). Please observe correct polarity when inserting the battery.

Close the battery compartment.

To remove the battery, push the small red lever 6 in the battery compartment towards the bottom side of the transmitter. Note: We recommend powering the transmitter by a standard PP3 alkaline battery. If powered by a rechargeable 9 V battery, the operating time will be drastically reduced. Connecting the antenna

Screw the antenna ! onto the antenna socket (M3 connection). Connecting the microphone/line cable Electret powering (“plug-in” power) is available at the AF input for powering the microphone.

Connect the 3.5 mm jack plug 7 from the microphone/line cable to the AF input (MIC/LINE) ..

Lock the jack plug by screwing down the locking ring 8. Switching the transmitter on/off

Slide back the cover plate %.

Press the ON/OFF button ) to switch the transmitter on. The red LED lights up.

To switch the transmitter off, press the ON/OFF button until “OFF” appears on the display. You can then release the button. The red LED goes off. Muting the transmitter Use the MUTE switch - to noiselessly mute the transmitter’s audio signal (this switch does not switch off the transmitter).

Signal and battery status indication The yellow LED # at the top of the SK 300 transmitter lights up if the audio signal at the AF input is excessively high (AF peak). The red LED " and the bargraph on the display provide information on the battery status. Bargraph: The bargraph indicates the (remaining) battery capacity in 3 steps: 8 segments: the full battery capacity is available, 4 segments: the battery capacity is sufficient, 1 segment: the battery is going flat, immediately replace the battery. Note: When switching on the transmitter with a partially used battery, it is possible that all eight segments may show for a short period of time – if this happens, re-check battery status after a few moments. LED lit up: The transmitter is switched on and the battery capacity is sufficient. LED flashing: The battery is going flat! You should immediately replace the battery. Attachment of the transmitter to clothing The SK 300 transmitter is best attached to e.g. the belt with clip 9. The clip is detachable so that you can also attach the transmitter with the antenna pointing downwards. To do so, withdraw the clip from its fixing points and attach it the other way round. Attachment of the microphones The microphone clips : enable the attachment of the ME 2 and ME 4 clipon microphones to clothing (e.g. tie, lapel). The ME 3 headmic is adjustable to comfortably and securely fit your head. Positioning the microphones The ME 3 and ME 4 microphones are directional microphones, i.e. their sound inlet should always be directed towards the sound source (e.g. mouth). The ME 2 with omni-directional pick-up pattern picks up sound equally from all directions. It is the best choice if movements of the speaker’s head have to be compensated for.

SKM 300 hand-held transmitter

Colour-coded identification ring for microphone modules green: MD 835 microphone module (cardioid dynamic microphone) blue: MD 845 microphone module (super-cardioid dynamic microphone) red: ME 865 microphone module (super-cardioid condenser microphone)

Body of hand-held transmitter

Turnable protective cap for operating controls (shown removed) The following operating controls become accessible in turn by turning the protective cap .:

Red LED for operation and battery status indication Inserting and changing the battery

Unscrew the display section % by turning it counter-clockwise.

Slide back the display section % until the battery compartment $ becomes fully accessible.

Insert the 9 V PP3 battery (IEC 6 LR 61). Please observe correct polarity when inserting the battery.

Push the the battery compartment into the radiomicrophone’s body.

Screw the display section tight.

To change the battery, press out the battery from below (press in the direction of the arrow). Switching the transmitter on/off

Turn the protective cap & at the bottom of the radiomicrophone so that the ON/OFF button becomes accessible.

Press the ON/OFF button + to switch the transmitter on. The red LED lights up.

To switch the transmitter off, press the ON/OFF button until “OFF” appears on the display. You can then release the button. The red LED goes off. Muting the transmitter Use the MUTE switch to noiselessly mute the transmitter’s audio signal (this switch does not switch off the transmitter).

Battery status indication The red LED , and the bargraph on the display provide information on the (remaining) battery capacity. Bargraph: The bargraph indicates the (remaining) battery capacity in 3 steps: 8 segments: the full battery capacity is available, 4 segments: the battery capacity is sufficient, 1 segment: the battery is going flat, immediately replace the battery. Note: When switching on the transmitter with a partially used battery, it is possible that all eight segments may show for a short period of time – if this happens, re-check battery status after a few moments. LED lit up: The transmitter is switched on and the battery capacity is sufficient. LED flashing: The battery is going flat! You should immediately replace the battery! First remove the battery and leave the radiomicrophone open.

Unscrew the sound inlet basket.

Loosen the screw and put it aside.

Remove the microphone module, as shown. Do not touch the contacts!

Insert the new module, secure the capsule by tightening the screw, put on the suitable sound inlet basket and coloured identification ring and screw it tight.

Insert the battery, close the radiomicrophone and put it into operation. Note: Microphone module, sound inlet basket and foam insert form an acoustic unit and must therefore always be exchanged all together. Each microphone module comes with a colour-coded identification ring to distinguish different microphone modules from each other (green = MD 835, blue = MD 845, red = ME 865).

Operation Transmitters and receivers of the Sennheiser evolution wireless Series ew 300 have been factory-preset to allow immediate use after switch-on (# “5 Preparing the devices for use”). Please note, however, that the transmitter sensitivity is dependent on the application. To avoid overmodulation and distortion, please first check whether the preset sensitivity is suitable for your particular application (# “Adjusting the sensitivity”). Operating controls ON/OFF Press the ON/OFF button or the POWER button (EM 300 receiver only) to POWER switch the transmitters and receivers on or off. MUTE Use the MUTE switch (transmitters only) to noiselessly mute the audio signal without switching off the transmitter. SET Press the SET button – to select a menu, – to change to the next menu, – to change to the next segment when entering a name, – to return to the top menu level.

Press the UP button – to adjust the setting of a menu, – to change a single character when entering a name.

Press the DOWN button – to adjust the setting of a menu, – to change a single character when entering a name.

LC display panel EM 300 receiver

8-step level display for incoming RF signal

8-step level display for incoming AF signal, with “PEAK” warning

Display for the “Frequency” menu. (This display can be the receiver’s standard display which always appears after switch-on).

Display for the channel number “Channel”. (This display can be the receiver’s standard display which always appears after switch-on).

Display for the “Name” menu. (This display can be the receiver’s standard display which always appears after switch-on).

Squelch active (“MUTE”)

Diversity display (antenna I or antenna II active) (# “11 Diversity reception”)

SK 300 and SKM 300 transmitters

3-step display for battery status Note:

If the operating steps for adjusting the settings via the menu are similar for all devices, only the main display of the EM 300 receiver is depicted. Basic functions of the Sennheiser operating menu A special feature of the Sennheiser evolution wireless Series ew 300 is the similar operation of transmitters and receivers. In stressfull situations, for example on stage or during a live show or presentation, it is important that the devices are easy to operate and that adjustments to the settings can be made quickly and “without looking”. Therefore, the necessary operating steps for each device are similar. Important: With the !/" buttons you can directly switch between the factorypreset frequencies (channel presets). The display starts flashing. Your selection becomes effective immediately.

Press the SET button to enter the top menu level: By briefly pressing SET again, you can change to the next menu. After approx. one second, the selected menu appears on the display and then the current setting of the menu is indicated.

Press the "/! buttons to adjust the settings of the selected menu: The new setting starts flashing on the display. If you return to the previous setting, the flashing stops. Important: New settings become effective immediately and will be retained in memory on switch-off! N.B.: When changing transmitter frequencies, care should be taken to avoid causing interference to other channels/users. In the “TUNE” and “NAME” menu, the "/! buttons feature a “fast search” function. By briefly pressing the "/! buttons, the display jumps either forwards or backwards to the next setting. If you hold down a button, the cycling of the display is continously accelerted. If you release the button and start over again, the cycling of the display restarts at normal speed. The “fast search” function allows you to get fast and easily to your desired setting.

Press the SET button to return to the top menu level: Have you finished your entries? Press the SET button to return to the top menu level. The display then switches back to the standard setting.

Overview of menus To ensure that transmitters and receivers of the Sennheiser evolution wireless Series ew 300 are easy to operate, the operating menus have been largely standardised: Display Transmitters SEnSit Adjusting the sensitivity (# page 57) SQELCH

Adjusting the squelch threshold (# page 58) DISPL DiSPL Selecting the content of the standard display (# page 59) Selecting the content of the standard display (# page 59) TUNE tune Setting the transmission frequency (# page 60) Setting the receiving frequency (# page 60) NAME LOCK Loc

Activating the lock-mode function to prevent accidental adjustment (# page 62) Assigning a name (EM 300 only) (# page 61) Activating the lock-mode function to prevent accidental adjustment (# page 62) Selecting the frequency, channel number

With the !/" buttons you can directly switch between the factorypreset frequencies (channel presets). The display starts flashing. Your selection becomes effective immediately.

Press the SET button to acknowledge your selection. The display stops flashing. (If the SET button is not pressed, the receiver will store the new frequency automatically on switch-off). Note: You can choose the content of the standard display i.e. whether the frequency, the channel number or a name is displayed (the latter option is only possible with the EM 300 receiver) (# “Selecting the content of the standard display”). The receiver is factory-preset to show the frequency setting as standard. SenSit Adjusting the sensitvity (transmitters only) Close talking distances, speakers with loud voices or loud music sequences may cause overmodulation in the transmission link, resulting in distortion. In this case, the “PEAK” warning of the EM 300’s AF level display (as well as the SK 300 transmitter’s yellow audio peak indication LED) will light up. If, on the other hand, the sensitivity is adjusted too low, the transmission link will be undermodulated, which would result in a signal with high background noise. The sensitivity has to be adjusted such that the “PEAK” warning of the receiver’s AF level display only lights up during the loudest passages. The following figures are a guide to the best settings: Loud music/vocals: Presentations: Interviews: -30 / -20 dB -20 / -10 dB -10 / 0 dB

Select the “SEnSit” menu by pressing the SET button until “SEnSit” appears on the display; after a short pause the current input sensitivity setting is displayed.

With the !/" buttons you can now select a different setting. The sensitivity can be adjusted in 10-dB steps from 0 to -30 dB. The new setting starts flashing on the display and becomes effective immediately.

Press the SET button to return to the top menu level. The display then switches back to the standard display.

SQELCH SqELCH Adjusting the squelch threshold (receivers only) The Sennheiser evolution wireless Series ew 300 receiver is equipped with an adjustable squelch which eliminates annoying noise when the transmitters are switched off. It also suppresses sudden noise when a transmitter leaves the reception area and there is no longer sufficient transmitter power received by the receiver.

Select the “SQELCH” menu by pressing the SET button until “SQELCH” appears on the display; after a short pause the current squelch setting is displayed.

With the !/" buttons you can now select a different setting. The squelch can be switched off (0 dB) or adjusted in 5-dB steps from 5 dB to 40 dB. Selecting a smaller value reduces the squelch threshold, selecting a higher value increases the squelch threshold. The new setting starts flashing on the display. Set the squelch threshold – with the transmitter switched off – to the lowest possible value that suppresses hissing noise. If the squelch threshold is set too high, the transmission range will be reduced. Note: With the transmitter switched off and the squelch threshold set to “0 dB”, hissing noise will occur. With the EM 300 receiver, the “PEAK” warning of AF level bargraph will light up.

Press the SET button to return to the top menu level. The display then switches back to the standard display. DISPL DiSPL Selecting the content of the standard display With all transmitters and receivers you can choose the content of the standard display i.e. whether the frequency, the channel number or a name is displayed (the latter option is only possible with the EM 300 receiver).

Select the “DISPL” menu by pressing the SET button until “DISPL” appears on the display; after a short pause the current setting is displayed.

With the !/" buttons you can now choose between: Name (EM 300 only): Frequency: Channel number: “NAME” “FREQU” “CHANNL” The new setting for the standard display starts flashing on the display.

Press the SET button to return to the top menu level. The display then switches to the new standard display.

Configuring a channel preset Transmitters and receivers of the Sennheiser evolution wireless series ew 300 have 8 switchable frequencies (channel presets) respectively to store up to 8 transmission/receiving frequencies. With the EM 300 receiver, you can additionally assign a name. You can directly switch between the channel presets (# “Selecting the frequency, channel number”). TUNE tune Setting the transmission/receiving frequency Transmission and receiving frequencies are tunable in 25-kHz steps within a switching bandwidth of 32 MHz max. Special notes on multi-channel operation: Several devices of the Sennheiser evolution wireless series ew 300 can be used simultaneously on different frequencies. The factory-preset frequencies are intermodulation-free. Before you program new frequency combinations, please refer to the information on the correct frequency choice given in the planning brochure “Practical Applications in RF Technology” which your local Sennheiser agent has in stock or will be pleased to order for you from Sennheiser.

Select the channel preset for which you wish to set a frequency.

Select the “TUNE” menu by pressing the SET button until “TUNE” appears on the display; after a short pause the currently set frequency is displayed.

With the !/" buttons you can now select a different frequency. The frequencies are tunable in 25-kHz steps. The new frequency starts flashing on the display and becomes effective immediately.

Press the SET button to return to the top menu level. The display then switches back to the standard display. NAME Assigning a name (EM 300 only) With the EM 300, you can assign the receiver a name in addition to the receiving frequencies. The name can consist of up to six characters such as:

letters (without pronounciation marks), numbers from 1 to 0, special characters e.g. () - _ and spaces. You can, for example, enter the name of the musician.

Select the “NAME” menu by pressing the SET button until “NAME” appears on the display; after a short pause the name entered is displayed.

Press the !/" buttons to start with your entry. The first segment starts flashing on the display.

With the !/" buttons you can now choose a character.

Press the SET button to change to the next segment and choose the next character.

Have you entered the name completely? Press the SET button to return to the top menu level. The display then switches back to the standard display.

LOCK Loc Activating/deactivating the lock-mode function You can lock the !/" buttons and the ON/OFF button to prevent accidental programming or switching off during operation. Activating the lock-mode function

Select the “LOCK” menu by pressing the SET button. The current setting is indicated on the display.

Press the ! button to activate the lock-mode function. “LOC ON” starts flashing on the display.

Press the SET button to return to the top menu level. Note: If you press the !/" buttons or the ON/OFF button, “LOCK” appears on the display and the buttons are now locked. Deactivating the lock-mode function

Select the “LOCK” menu by pressing the SET button. “LOC ON” appears on the display.

Press the " button to deactivate the lock-mode function. “LOC OFF” begins to flash on the display.

Press the SET button to return to the top menu level. The display switches back to the standard display and the buttons can now be operated as usual.

Troubleshooting No operation indication $ Batteries are flat $ No mains connection No RF signal $ Transmission frequency is not the same as the receiving frequency $ Transmitter is out of range RF signal available but no audio signal $ Transmitter is muted (“MUTE”) $ Receiver’s squelch threshold adjusted too high Audio signal has a high level of background noise $ Transmitter sensitivity adjusted too low $ Receiver’s AF output level adjusted too low Audio signal distorted $ Transmitter sensitivity adjusted too high $ Receiver’s AF output level adjusted too high

If problems occur that are not listed in the above table, please contact your local Sennheiser agent for assistence.

Recommendations and tips ... for the ME 2 and ME 4 clip-on microphones $ To reduce level variations to a minimum when the user turns his or her head away from the microphone, attach the microphone as centrally as possible. $ To protect the microphone against excessive sweat/moisture, avoid direct skin contact. $ Attach the microphone carefully and conduct the cable such that noise due to friction is avoided. $ Always use the ME 4 directional microphone with a windshield and direct the microphone towards the sound source (e.g. mouth). ... for the ME 3 headmic $ Always use the microphone with a popshield and position the microphone at the corner of the mouth. $ You can vary the bass reproduction by increasing/decreasing the talking distance. $ Make sure that the sound inlet is directed towards the mouth. The sound inlet is marked with a little dot. ... for the SK 300 pocket transmitter $ Make sure that the antenna and the microphone cable do not cross. $ The antenna should hang freely and be at least 1 cm away from the body. The antenna must not be in direct contact with the skin. $ For best results, make sure that the transmitter sensitivity is correctly adjusted. ... for the SKM 300 hand-held transmitter $ Hold the SKM 300 hand-held transmitter in the middle of the microphone body. Holding it close to the sound inlet basket will influence the microphone’s pick-up pattern, holding it at the lower part of the body will reduce the transmitter’s range. $ You can vary the bass reproduction by increasing/decreasing the talking distance. $ For best results, make sure that the transmitter sensitivity is correctly adjusted.

... for optimum reception $ Transmission range depends to a large extent on location and can vary from about 10 m to about 150 m. There should be a “free line of sight” between transmitting and receiving antennas. $ If, with the EM 300 receiver, reception conditions are unfavourable, you should use two remote antennas which are connected via antenna cable (# “Accessories”). $ To avoid HF-overmodulating the receiver, observe a minimum distance of 5 m between transmitting and receiving antennas. $ Observe a minimum distance of 50 cm between receiving antennas and metal objects (such as cross members or reinforced-concrete walls). ... for multi-channel operation $ You cannot use all adjustable frequency combinations simultaneously. The factory-preset frequencies (presets), however, are intermodulation-free. If you wish to program new frequency combinations, please contact your local Sennheiser agent who will provide you with information on the correct frequency choice. $ When using several transmitters simultaneously, interference can be avoided by maintaining a minimum distance of 20 cm between two transmitters. $ Use special accessories for multi-channel applications (# “Accessories”).

Care and maintenance SKM 300 hand-held transmitter The SKM 300’s sound inlet basket should be cleaned from time to time.

Unscrew the inlet basket (turn counter-clockwise) and remove it.

Use a damp cloth to clean the inlet basket from the inside and outside. Note: Do not use any cleasing agents or solvents. Do not touch the microphone’s contacts.

Replace the inlet basket on the SKM 300 and screw it tight (taking care not to loose the coloured identification ring).

Overview Wireless transmission systems With the evolution wireless series, Sennheiser puts an end to cable tangles and enables complete freedom of movement at an affordable price. The systems operate exclusively in the UHF band. UHF transmission is extremely reliable and is far less prone to interference than the overcrowded VHF band – harmonics from mains units, fluorescent tubes, refrigerators, computers, etc. are virtually eliminated. Also indoor propagation of UHF radio waves is better than VHF so that the RF power can be kept low – this is also an advantage when using multi-channel systems. Finally, UHF frequency ranges are being approved all over the world for radiomicrophone usage – in some countries licence-free. There are two transmitter versions: The hand-held transmitter is a complete radiomicrophone in a single unit, the pocket transmitter can accept a wide range of inputs including: omni-directional or cardioid “tie” microphones, head-worn microphone, guitar/instrument direct input and auxiliary devices via the optional CL 2 line input cable. Fresh batteries ensure good transmission power during operation. Always use alkaline batteries for best operation – a 9 V PP3 battery has a much longer operating time than a NiCd rechargeable battery (approx. 8 hours with a 9 V PP3 or 1 hour with a rechargeable). Correct adjustment of transmitter sensitivity is vital. Too high and you get overmodulation and distortion, too low and you get undermodulation and a noisy signal. Please set the sensitivity correctly for the microphone/usage and check it before every performance to ensure best operation. Sennheiser miniature clip-on microphones can be attached in various ways: they can, for example, be attached to the hairline or to clothing (e.g. tie or lapel). However it is fixed, please make sure that the microphone is protected against sweat/moisture and make-up. Interference such as distortion, hissing or “birdying” may occur if several transmitters are used together and the frequencies have not been correctly chosen. Sennheiser standard frequencies (as supplied) are all intermodulationfree. For other frequency sets please contact your local Sennheiser agent, who will be able to provide you with information on correct frequency choice and/or be able to calculate special frequency sets for you.

HDX noise reduction Dynamic range of the AF signal RF signal (max. 60 dB) Inherent noise of the RF link Transmitter Receiver Progress you can hear: The evolution wireless series is equipped with HDX, the new Sennheiser noise reduction system that reduces RF interference. It increases the signal-to-noise radio in wireless audio transmission to up to 110 dB. HDX is a wideband compander system which compresses the audio signal in the transmitter in a 2:1 ratio (related to dB) to lift it above the inherent noise floor of the RF link. A 110 dB dynamic range signal is thus transmitted with an effective dynamic range of only 55 dB, which is above the 60 dB noise floor of the RF link. In the receiver the signal is expanded in an identical and opposite way in a 1:2 ratio to restore the original signal, at the same time reducing the RF noise to below the noise floor of the receiver. Giving a radio link with a better signal-to-noise ratio than a CD. HDX has been specially developed for high quality radiomicrophone systems. Note: Only transmitters and receivers that are equipped with HDX can work correctly with each other. If non HDX equipment was mixed with HDX, the dynamic range would be drastically reduced and the transmission would sound blunt and flat. HDX is permanently active and cannot be switched off. Connector assignment XLR-3 connector (EM 300) balanced unbalanced /4” (6.3 mm) stereo jack plug (EM 300) balanced unbalanced

3.5 mm stereo jack plug (lockable) (SK 300)

DC connector/Power supply

Diversity reception The EM 300 receiver operates on the “true diversity” principle: A receiving antenna receives not only the electromagnetic waves which reach it by a direct path, but also the reflections of these waves which are created in the room by walls, windows, ceilings and fittings. When these waves are superimposed, destructive interference occurs, which can also be called “field strength gaps”. Repositioning the receiving antenna can bring a solution, provided the transmitter remains in its original position. With mobile transmitters, however (which all radiomicrophones are ), the “field strength gap” will then occur with a different transmitter position. These “field strength gaps” can only be eliminated with true diversity receivers. In true diversity, instead of one antenna and one receiver there are now two antennas and two receiver sections. The antennas are spatially separated. By means of a comparison circuit, the receiver section with the strongest RF signal is always switched to the common AF output. The risk of the occurrence of “field strength gaps” in both antennas at the same time is virtually nonexistant. The receiver display panel shows the active diversity section (I or II). Control signal Receiver section I

Electronic switch-over of AF signal Control signal Receiver section II Technical data System RF characteristics Modulation Frequency ranges Transmission/receiving frequencies Switching bandwidth Nominal/peak deviation Frequency stability AF characteristics Noise reduction system AF frequency response Signal-to-noise ratio at 1 mVRF and peak deviation, HDx THD at nom. deviation and 1 kHz Overall device Temperature range Dimensions Carrying case [mm] Weight Carrying case In compliance with wideband FM 518 – 550, 630 – 662, 740 – 772, 790 – 822, 838 – 870 MHz 1280, tunable in steps of 25 kHz 8 switchable channels 32 MHz ± 24 kHz / ≤ ± 48 kHz ≤ ± 15 ppm Sennheiser HDX 60 – 18,000 Hz ≥ 110 dB(A) ≤ 0.9 % -10°C ... +55°C 380 x 370 x 70 approx. 3100 g

ETS 300 422, ETS 300 445 (CE), FCC

Receiver RF characteristics Receiver principle Sensitivity (with HDX, peak deviation) Squelch threshold Antenna inputs Antenna input impedance AF characteristics AF output voltage at peak deviation 1 kHzAF AF OUT Level adjustment EM 300 true diversity < 2.5 µV at 52 dBArms S/N 0–100 µV, adjustable 2 BNC sockets 50 Ω XLR-3 socket: !1/4” (6,3 mm) jack socket: balanced: +10 dBu ! balanced: +10 dBu unbalanced: +4 dBu ! unbalanced: +4 dBu 0 – 40 dB

Overall device Power supply Power consumption Dimensions [mm] Weight EM 300

10.5 – 16 V DC, nominal voltage 12 V DC

approx. 200 mA 212 x 145 x 38 approx. 1100 g Transmitters RF characteristics RF output power at 50 Ω Antenna length [mm] AF characteristics Max. input voltage (at peak dev., 1 kHzAF ) MICRO: LINE: Overall device Power supply Max. power consumption at nom. voltage Operating time Dimensions [mm] Weight 9 V alkaline PP3 battery (IEC 6 LR 61) ≤ 60 mA >8h !> 8 h 110 x 65 x 22 !Ø 50 x 225 approx. 255 g !approx. 450 g Microphones Transducer principle Sensitivity Sound pressure Pick-up pattern ME 2 condenser 20 mV/Pa 130 dB SPL omni-directional !ME 3 condenser

1.6 mV/Pa

150 dB SPL super-cardioid !ME 4 condenser 40 mV/Pa 120 dB SPL cardioid Transducer principle Sensitivity Sound pressure Pick-up pattern MD 835 dynamic

1.5 mV/Pa

150 dB SPL cardioid !MD 845 dynamic 1 mV/Pa 154 dB SPL super-cardioid !ME 865 condenser 3 mV/Pa 144 dB SPL super-cardioid

Polar diagrams of microphones/microphone modules MD 835 ME 865 ME 3 MD 845 ME 4 Frequency response curves of microphones/microphone modules MD 835 ME 2 MD 845 ME 3 ME 865 ME 4

Accessories MD 835 Microphone module for SKM 300, dynamic, cardioid MD 845 Microphone module for SKM 300, dynamic, super-cardioid ME 865 Microphone module for SKM 300, condenser, super-cardioid MZW 1 Wind- and popshield for SKM 300 MZQ 1 Microphone clamp for SKM 300 ME 2 Clip-on microphone for SK 300, condenser, omni-directional ME 4 Clip-on microphone for SK 300, condenser, cardioid ME 3 Headmic for SK 300, condenser, super-cardioid CI 1 Instrument cable for SK 300, with 1/4” (6.3 mm) jack plug CL 2 Line input cable for SK 300, with female 3-pin XLR connector GA 1 19” rack adaptor for EM 300, for mounting two EM 300/ASP 1 or one EM 300/ASP 1 with AM 1 into a 19” rack AM 1 Antenna mount for connecting antennas to the front of the GA 1 A 1031-U UHF antenna, passive, omni-directional, can be mounted onto a stand AB 1-A UHF antenna booster AB 1-B 10 dB gain AB 1-C (powered via ASP 1/NT 1) AB 1-D AB 1-E 518 – 550 MHz 630 – 662 MHz 740 – 772 MHz 790 – 822 MHz 838 – 870 MHz GZL 1019-A1 / 5 / 10 Antenna cable with BNC connectors 1 m / 5 m / 10 m ASP 1 Antenna splitter, 2 x 1:4, passive, for connecting four EM 300 to two A 1031-U/AB 1 NT 1 Plug-in mains unit for ASP 1 (to power four receivers and two AB 1)

DC 1 DC power adaptor, for external 12 V DC powering of SK 300 (instead of 9 V PP3 battery) CC 1 Carrying case for SET ew 300

NOTICE D‘EMPLOI

Sortie BF, XLR-3M (AF OUT BAL/UNBAL)

Sortie BF, prise jack 6,3 mm (AF OUT BAL/UNBAL)

“NAME” “FREQU” “CHANNL” EM 300 10,5 – 16 V CC, tension nominale 12 V CC approx. 200 mA 212 x 145 x 38 approx. 1100 g Pile 9 V alcaline manganèse (IEC 6 LR 61) ≤ 60 mA >8h !> 8 h 110 x 65 x 22 !Ø 50 x 225 approx. 255 g !approx. 450 g 518 – 550 MHz 630 – 662 MHz 740 – 772 MHz 790 – 822 MHz 838 – 870 MHz Presa BNC, entrata antenna I (ANT I) “NAME” “FREQU” “CHANNL” MD 835 dinamico 1,5 mV/Pa 150 dB SPL cardioide “NAME” “FREQU” “CHANNL” Ramal de receptor I

ME 2 electret 20 mV/Pa 130 dB SPL esférico !ME 3 !electret !1,6 mV/Pa !150 dB SPL !extra-ovalado !ME 4 !electret !40 mV/Pa !120 dB SPL !ovalado !ME 865 !electret !3 mV/Pa !144 dB SPL !extra-ovalado

518 – 550 MHz 630 – 662 MHz 740 – 772 MHz 790 – 822 MHz 838 – 870 MHz “NAME” “FREQU” “CHANNL” 3,5-mm jack connector (SK 300) Connector/stroomtoevoer

MD 835 dynamisch 1,5 mV/Pa 150 dB SPL Nier 518 – 550 MHz 630 – 662 MHz 740 – 772 MHz 790 – 822 MHz 838 – 870 MHz Printed in Germany Publ. 07/00 79745 / A 02