evolution wireless In-Ear Monitoring System ew 300 IEM
Contents
1. This is a professional transmission system Commercial use is subject to the rules and regulations of the trade association responsible Sennheiser as the manufacturer is therefore obliged to expressly point out possible health risks arising from use This system is capable of producing sound pressure exceeding 85 dB A 85 dB A is the sound pressure corresponding to the maximum permissible volume which is by law in some countries allowed to affect your hearing for the duration of a working day It is used as a basis according to the specifications of industrial medicine Higher volumes or longer durations can damage your hearing At higher volumes the duration must be shortened in order to prevent damage The following simple formula applies Double the volume half the duration An increase of 3 dB corresponds to doubling the volume you can thus go by the following table Maximum duration at a sound pressure of 8 hours 85 dB 4 hours 88 dB 2 hours 91 dB 1 hour 94 dB 30 minutes 97 dB 15 minutes 100 dB 8 minutes 103 dB 4 minutes 106 dB 2 minutes 109 dB 1 minute 112 dB Pain threshold 120 dB The following are sure signs that you have been subjected to excessive noise for too long a time A You can hear ringing or whistling sounds in your ears A You have the impression even for a short time only that you can no longer hear high notes A After using this system your hearing is impaired for a short time In all of2. Red LED for operation and battery status indication ON LOW BAT Green LED for RF signal indication RF Cover plate for battery compartment Cover plate for display and operating controls Headphone output EARPHONES 3 5 mm stereo jack socket On off volume control Balance control SET button LC display Y button DOWN A button UP Gw 300 tem U SENNHEISER 3 5mm stereo jack plug for headphone connection RE ATT ONILOW BI Inserting and changing the battery gt Slide the cover of the battery compartment in the direction of the embossed arrow until it clicks audibly gt Open the cover gt Insert the 9 V PP3 battery IEC 6 LR 61 Please observe correct polarity when inserting the battery gt Close the battery compartment gt To remove the battery push the small red lever in the battery compartment towards the bottom side of the receiver Note We recommend powering the receiver by a standard PP3 alkaline battery If powered by a rechargeable 9 V battery the operating time will be drastically reduced Connecting the antenna gt Screw the antenna onto the antenna socket M3 connection Connecting the headphones If you use the receiver as part of the monitoring system connect the supplied in ear headphones to the 3 5 mm jack socket on the receiver If you use the receiver for other applications you can also connect any Sennheise
3. 100 dB A lt 0 9 10 C 55 C 380 x 370 x 70 approx 3100 g ETS 300 422 ETS 300 445 CE FCC non diversity lt 2 5 uV at 52 dBarms S N 0 100 uV adjustable M8 thread 518 550 MHz 130 630 662 MHz 110 740 772 MHz 90 790 822 MHz 90 838 870 MHz 80 3 5 mm jack socket 2 x 100 mW at 32 Q Overall device Power supply Power consumption operating time Dimensions mm Weight SR 300 IEM Transmitter FF characteristics RF output power at 50 Q Antenna output AF characteristics Headphone output Output power at headphone output AF input AF input voltage at peak dev 1 kHz Overall device Power supply Max power consumption at nom voltage Dimensions mm Weight 9 V alkaline PP3 battery IEC 6 LR 61 lt 75 mA 4 6 h depending on volume level 110 x 65 x 22 approx 255 g 20 mW internally adjustable to 10 mW BNC socket 50 Q 6 3 mm stereo jack plu 4 Jacx plug 100 mW at 32 Q 2 x 2 x 6 3 mm stereo jack socket balanced 10 dBu 10 5 16 V DC nominal voltage 12 V DG approx 200 mA 212 x 145 x 38 approx 1100 g AM 1 A 1031 U GZL 1019 A1 GZL 1019 A5 GZL 1019 A10 AC1 NT3 IE1 IES 1 001 Accessories 19 rack adaptor for mounting two SR 300 IEM AC 1 or one SR 300 IEM AC 1 with AM 1 into a 19 r
4. the above cases you should consult a specialist or at least have your hearing tested Ear damage builds up gradually Once the initial symptoms have died down you no longer perceive acute changes In the long term however the repeated effects of loud noises can cause severe hearing impairment or even deafness 5 Preparing the devices for use SR300 IEM stereo transmitter Zi SI NNHEJISER PHONES AFIN BAL UNBAL DC IN 10 5 6V 200mA Headphone output 6 3 mm jack socket PHONES Headphone volume control VOL LC display A button UP Y button DOWN SET button POWER ON OFF button Cable grip for power supply DC cable DC socket for connection of mains unit DC IN Audio input 6 3 mm jack socket left and MONO AF IN BAL UNBAL Audio input 6 3 mm jack socket right AF IN BAL UNBAL BNC socket antenna output ANT 8 889900090900 37 Lsm R i Ve a AF IN BAL uy F A o V 2o0ma gt Mounting the rubber feet To ensure that the transmitter 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 transmitter gt Ensure that the recesses are clean and free from grease before fixing the feet Attention Some furniture s
5. two separate channels in the mixed mono signal for full description of FOCUS operation see page 49 Attachment of the receiver to clothing The EK 300 IEM receiver is attached to e g the belt with the supplied clip This is reversable so that the receiver can also be attached with the antenna pointing downwards if required POWER 6 Operation The evolution wireless system ew 300 IEM has been factory preset to allow immediate use after switch on ss 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 s Adjusting the sensitivity Operating controls Press the POWER button to switch the SR 300 IEM transmitter on or off The EK 300 IEM is switched on or off via the volume control with integral on off switch Press the SET button to select a menu to change to the next menu to change to the next segment when entering a name SR 300 IEM only 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 SR 300 IEM only Press the DOWN button to adjust the setting of a menu to change a single character when entering a name SR 300 IEM only OIL LIL Lil Li LCdisplay panel SR 300 I
6. want you to enjoy your new Sennheiser products quickly and to the full 2 Short description With the Sennheiser evolution wireless in ear monitoring system ew 300 IEM suitable for both stage and broadcast use musicians video and sound amateurs reporters broadcasters etc can directly monitor the received sound signals without troublesome cables or monitor speakers being required In addition the system can also be used for any application where talkback signals are to be transmitted The evolution wireless in ear monitoring system ew 300 IEM is a high quality state of the art RF transmission system with a high level of operational reliability and ease of use Transmitter and receiver permit wireless transmission with studio quality sound Due to further optimised PLL and microprocessor technology and the HDX noise reduction system this transmission system ensure interference free transmission and minimise dropouts in the RF link The system 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 518 550 MHz Range B 630 662 MHz Range C 740 772 MHz Range D 790 822 MHz Range E 838 870 MHz Transmitter and receiver of the Sennheiser ew 300 IEM system are 8 channel switchable Transmitter and receiver have 8 frequency memories to sto
7. 5 20 15 10 5 0 PEAK mm m F F m MUTE H w W z Activating deactivating the lock mode function You can lock the a v buttons and the POWER button to prevent accidental programming or switching off during operation Activating the lock mode function gt Select the LOCK menu by pressing the SET button The current setting is indicated on the display Press the A button to activate the lock mode function LOCON starts flashing on the display Press the SET button to return to the top menu level Note If you press the 4 v buttons or the POWER button LOCK appears on the display and the buttons are now locked Deactivating the lock mode function gt Select the LOCK menu by pressing the SET button LOCON appears on the display Press the V 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 7 Troubleshooting Error checklist Problem No operation indication No RF signal RF signal available but no audio signal Audio signal has a high level of background noise Audio signal distorted Possible cause Batteries are flat No mains connection Transmission frequency is not the same as the receiving frequency Transmitter is out of range Receiver s squelch threshold adjuste
8. EM transmitter 6006 5 10 15 20 25 30 35 40 30 25 20 15 10 5 0 PEAK M MUTE H N 8 step level display for audio signal left or MONO 8 step level display for audio signal right 6 segment alphanumeric main display MUTE display Lights up for a short moment when switching on the transmitter or when changing the frequency Display for the Frequency menu This display can be the transmitter s standard display which always appears after switch on Display for the channel number Channel This display can be the transmitter s standard display which always appears after switch on Display for the Name menu This display can be the transmitter s standard display which always appears after switch on MHZ MHz display Lights up when the frequency is displayed EK 300 IEM receiver 0 12 Note 8 step level display for audio AF signal Alphanumeric main display 8 step level display for incoming RF signal If the operating steps for adjusting the settings via the menu are similar for both devices only the main display of the SR 300 IEM transmitter is shown Basic functions of the Sennheiser operating menu A special feature of the Sennheiser evolution wireless system ew 300 IEM is the similarity of the operating controls of both transmitter and receiver In stressfull situations for example on stage or during a live show or presentation it is i
9. Instruction manual II SENNHEISER evolution wireless In Ear Monitoring System ew 300 IHM u o a z 7 g w 2 W z Z Z W n S STEREO TRANSMITTER W300 IEM PHONES SENNHEISER POWER 4 Chap are won m Oo ON DD Contents Contents Page COMME a A NURARURRRERFERTERIPREDTERE FREE RL E CHRREERREEFELNEEFEELIPERREER 34 Sh rt deseripion nissen einen nern enhisteneenee 35 Systemi COMP HENES sessssssccscsssssssessasssvessssesssasvstssenesccassvavesuesssesecauesiess 35 Import nt notes nannten 35 Preparing the devices for use ssenenenenennnnennnnnnenenenennnnn 37 SR 300 IEM stereo transmitter aeseenenenenenenennnnnnnnnenenenens 37 EK 300 IEM stereo pocket receiver unnennenenenesnnnesnnennnen 40 Operationen E A A E 43 Troubleshooting u sehen eis 54 Care and maintenance uneesesnennsennenennsnsnenennsnsnennnnnnsnenenenennnnnnennnn 55 QV EI VIEW 555 stessensansutaten sonsvssan ctovcsnsencovenss sie seansdegn ssoae tenes EENE SRE TEENE SEIE Ea 56 Wireless transmission system ssnenenenenenenennennnnnnenanenenens 56 HDX noise reduction uessessseenenesssnsnenenssnenennnnsnensnennsnenenennenennnn 57 Technical data sumenani E E 58 ACCESSO ES eae a a Prince vehenteresstense three 60 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
10. The display then switches back to the standard display DISPL DISPL 5 10 15 20 25 30 35 30 25 20 15 mT E mi 5 10 15 20 25 30 35 30 25 20 15 NAME 5 0 5 10 15 20 25 30 35 30 25 20 15 10 5 0 FREN 5 10 15 20 25 30 35 25 20 15 10 5 CHANN Selecting the contents of the standard display With the SR 300 IEM you can choose the contents of the standard display i e whether the frequency the channel number or a name is displayed With the EK 300 IEM you can choose whether the frequency or the channel number is displayed gt Select the DISPL menu by pressing the SET button until DISPL appears on the display after a short pause the current setting is displayed gt With the 4 buttons you can now choose between Name SR 300 IEM only NAME Frequency FREQU Channel number QHANNL The new setting for the standard display starts flashing on the display gt Press the SET button to return to the top menu level The display then switches to the new standard display ao Peak PERMER TUNE tune lt gt EEEE 5 10 15 20 30 25 20 15 TUNE 25 30 35 40 10 5 0 PEAK M H 5 10 15 20 30 25 20 15 Ace 25 30 35 40 10 5 0 PEAK KEH Configuring a channel preset Transmitter and receiver of the evolution wireless system ew 300 IEM have 8 switchab
11. ack Antenna mount for connecting antennas to the front of the GA 1 UHF antenna passive omni directional can be mounted onto a stand Antenna cable with BNC connectors 1m 5m 10m Antenna combiner for combining the RF signals of up to four transmitters onto a single antenna and for powering up to four transmittes Plug in mains unit for AC 1 In ear headphones 1 pair of ear moulds Carrying case for SET ew 300 IEM
12. asily 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 transmitter and receiver of the Sennheiser evolution wireless system ew 300 IEM are easy to operate the operating menus have been largely standardised Display SR 300 IEM Transmitter EK 300 IEM Receiver SENSIT Adjusting the sensitivity we page 47 SQELCH Adjusting the squelch threshold m page 48 STEREO Stereo Mono selection sr page 49 FocuS Stereo FOCUS selection ws page 49 Lid Limiting the volume at the headphone output ss page 49 DISPL Selecting the content of Selecting the content of DISPL the standard display page 50 the standard display page 50 TUNE Setting the Setting the tune transmission frequency page 51 receiving frequency page 51 NAME Assigning a name m page 52 LOCK Activating the lock mode function Activating the lock mode function Loc to prevent accidental adjustment to prevent accidental adjustment w page 53 we page 53 Selecting the frequency channel number gt With the 4 buttons you can directly switch between the factory preset frequencies channel presets The display starts flashing Your selection becomes effective immediately gt Press the SET button t
13. d too high Transmitter sensitivity adjusted too low Transmitter sensitivity adjusted too high Receiver s AF output level adjusted too high gt If problems occur that are not listed in the above table please contact your local Sennheiser agent for assistence Recommendations and tips for optimum reception Transmission rangedepends 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 To avoid overmodulating the receiver observe a minimum distance of 5 m between transmitting and receiving antennas Observe a minimum distance of 50 cm between 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 observe a minimum distance of 40 cm between transmitting antennas Use special accessories for multi channel applications mw Accessories When using the ew 300 IEM system in combination with radiomicrophone systems a minimum channel spacing of 8 MHz should be maintained to avoid RF breakth
14. eration 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 intermodulation free 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 OdB OdB 10dB 10dB 20 dB 20 dB 30 dB 30 dB 40 dB 40 dB 50 dB 50 dB 60 dB 60 dB 70 dB 70 dB 80 dB 80 dB 90 dB 90dB 100 dB 100 dB 110dB 110dB 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 no
15. evice that is only suitable for mono operation must be connected 9 to jack socket In this case the stereo operation must be switched off via the menu 7s ps 17 6 3 mm jack plug balanced unbalanced Switching the transmitter on off gt Press the POWER button to switch the transmitter on gt To switch the transmitter off press the POWER button until OFF appears on the display You can then release the button fi SENNHEISER After a power failure the device returns to the previous setting ON OFF Connecting the headphones monitoring the audio signal STEREO TRANSMITTER W300 IEM Tr Connect the headphones to the headphone output PHONES l for monitoring the audio signal Only connect headphones with a 6 3 mm stereo jack plug PHONES gt Use the headphone volume control to adjust the volume Attention First set the volume control to the lowest volume by turning it to the left as far as possible xac 5 ee L Volume up NO sis When people use headphones they tend to choose a higher volume I 6 3mm stereo jack plug than with loudspeakers Listening at high volume levels for long for headphone connection periods can lead to permanent hearing defects Please protect your hearing Sennheiser headphones have an excellent sound quality even at low volumes EK 300 IEM stereo pocket receiver 0 2 17 Antenna
16. ise 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 Technical data System FF characteristics Modulation Frequency ranges Transmission receiving frequencies Switching bandwidth Nominal peak deviation Pilot tone deviation stereo operation Frequency stability AF characteristics Noise reduction system AF frequency response Signal to noise ratio at 1 mVrr 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 EK 300 IEM Receiver FF characteristics Receiver principle Sensitivity with HDX peak deviation Squelch threshold Antenna inputs Antenna length mm AF characteristics AF output voltage at peak deviation 1 kHz PHONES wideband FM stereo MPX Range A 518 550 MHz Range B 630 662 MHz Range C 740 772 MHz Range D 790 822 MHz Range E 838 870 MHz 1280 tunable in steps of 25 kHz 8 switchable channels 32 MHz 24 kHz lt 48 kHz 5 kHz lt 15 ppm Sennheiser HDX 50 15 000 Hz gt
17. ixed and are available as a mono signal in both headphone channels SR 300 IEM transmitter in stereo mode You can for example set the receiver to FOCUS mode to allow an individual mix of the signals for vocals and backing music or mix two signals with different volume levels which are then heard as a correctly mixed mono signal Select the FocuS menu by pressing the SET button until FocuS appears on the display after a short pause the current setting is displayed Press the A button to switch the FOCUS operation on if you press the Y button the FOCUS operation is switched off The new setting i e Fo on or Fo OFF starts flashing on the display Press the SET button to return to the top menu level The display then switches back to the standard display Limiting the volume at the headphone output EX 300 EM The EK 300 IEM is equipped with a switchable limiter which limits the volume at the headphone output With the limiter switched on the volume at the headphone output will be reduced by approx 18 dB gt Select the Ltd menu by pressing the SET button until Ltd appears on the display after a short pause the current setting is displayed Press the 4 button to switch the limiter on if you press the Y button the limiter is switched off The new setting i e Ltd on or Ltd OFF starts flashing on the display Press the SET button to return to the top menu level
18. le frequencies channel presets respectively to store up to 8 trans mission receiving frequencies With the SR 300 IEM transmitter you can additionally assign a name lt gt gt gt ei X et NV a 3 une fou NO fou NO fox NO 2 Channel No 1 Frequency DISPLAY jon NO Channel No 3 Channel No 2 Channel No 8 DISPLAY NAME NAME NAME Name Name gt 0 i g You can switch directly between the channel presets ww Selecting the frequency channel number 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 system ew 300 IEM 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 available from your local Sennheiser agent gt 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 gt With the 4 buttons you can now select a different frequency The f
19. mp S Y a S Ss a 5 0 PEAK BR En 3 ee a 10 15 20 25 30 35 40 b 25 20 15 10 5 0 PEAK m m IT AT m me 2 a LJ IN 5 10 15 20 25 30 35 40 30 25 20 15 10 5 0 PEAK vT Ea H 2 AY AN ay Adjusting the squelch threshold EK 300 IEM The EK 300 IEM receiver is equipped with an adjustable squelch which eliminates annoying noise when the transmitter is switched off It also suppresses sudden noise when the receiver leaves the transmission area and there is no longer sufficient transmitter power received by the receiver gt 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 4 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 EK 300 IEM receiver the AF level bargraph will completely ligh
20. mportant that the devices are easy to operate and that adjustments to the settings can be made quickly and instinctively Therefore the necessary operating steps for each device are similar Important With the 4 v buttons you can directly switch between the factory preset 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 w 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 w a buttons feature a fast search function By briefly pressing the w a 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 e
21. o acknowledge your selection The display stops flashing Note You can choose the content of the standard display i e whether the frequency the channel number or with the SR 300 IEM a name is displayed ss Selecting the content of the standard display The devices are factory preset to show the frequency setting as standard SENSIT Adjusting the sensitvity SR 300 IEM only To match the transmitter to the output level of the connected device e g mixing console you can adjust the input sensitivity in 4 steps of 5 dB from 0 to 15 dB 5 10 15 20 25 30 35 40 gt Select the SENSIT menu by pressing the SET button until SENSIT a i a a a a a appears on the display after a short pause the current input sensitivity C g NA T TI mre setting is displayed A N UN UY gt With the 4 v buttons you can now select a different setting The input sensitivity can be adjusted in 5 dB steps from 0 to 15 dB The new setting starts flashing on the display and becomes effective 30 25 20 15 10 5 0 PEAK immediately 5 10 15 20 25 30 35 40 NA A ml j H A MUTE I ld CJ i gt Press the SET button to return to the top menu level The display then switches back to the standard display 47 SqE CH 5 10 15 20 25 30 35 40 30 25 20 15 10 5 0 PEAK SBELCH 5 10 15 20 25 30 35 40 30 25 20 15 10 5 0 PEAK 15 DJ STEREO 5 10 15 20 25 30 35 40 a
22. r stereo headphones gt Connect the headphones to the headphone output EARPHONES via a 3 5 mm stereo jack plug Signal indication The green LED at the top of the EK 300 IEM receiver indicates that an RF signal is being received Battery status indication The red LED provides information on the remaining battery capacity LED lit up The receiver is switched on and the battery capacity is sufficient LED flashing The battery is going flat You should immediately replace the battery 41 Switching the receiver on Turn the volume control clockwise the volume control has an integral on off switch the receiver is switched off when the control is turned fully to the left until it clicks Note The receiver has a switch on delay of approx 1 5 seconds to suppress the switch on surge and protect your ears Adjusting the volume Use the volume control to adjust the volume to suit Volume up NO When people use headphones they tend to choose a higher volume than with loudspeakers Listening at high volume levels for long periods can lead to permanent hearing defects Please protect your hearing Sennheiser headphones have an excellent sound quality even at low volumes Adjusting the balance During stereo operation the balance control serves to adjust the balance between the left and right stereo signal During FOCUS operation the balance control serves to adjust the relative levels of the
23. re up to 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 The system has 8 factory pre programmed frequencies so that the system is ready for immediate use after switch on several in ear monitoring 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 3 System components The system consits of EK 300 IEM stereo receiver SR 300 IEM stereo transmitter 9 V PP3 alkaline battery transmitting antenna and receiving antenna NT 2 mains unit IE 1 in ear headphones user manual 4 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 becomes null and void 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 35 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 Attention High Volume
24. requencies are tunable in 25 kHz steps The new frequency starts flashing on the display and becomes effective immediately gt Press the SET button to return to the top menu level The display then switches back to the standard display 5i NAME 5 10 15 20 25 30 35 40 30 25 20 15 10 5 0 PEAK EEEE E MUTE 5 10 15 20 25 30 35 40 30 25 20 15 10 5 0 PEAK BERERR Assigning the SR300 IEM a name The SR 300 IEM transmitter can be assigned a name 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 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 4 v buttons to start with your entry The first segment starts flashing on the display With the 4 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 5 30 ss 10 15 20 25 30 35 40 25 20 15 10 5 0 PEAK mT Ly u DD Hy Us MUTE SS 10 15 20 25 30 35 40 25 20 15 10 5 0 PEAK Mm 17 II Al wre RER LJ INe 5 30 W 10 15 20 25 30 35 40 2
25. rough between systems 8 Care and maintenance Use a damp cloth for cleaning the devices Do not use any cleansing agents or solvents as these could damage the surface of the equipment 9 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 Fresh batteries ensure good reception 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 4 to 6 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 op
26. t up Press the SET button to return to the top menu level The display then switches back to the standard display Stereo Mono selection SR 300 IBM To set the SR 300 IEM transmitter to mono operation you need to switch off the stereo operation gt Select the STEREO menu by pressing the SET button until STEREO appears on the display after a short pause the current setting is displayed Press the A button to switch the stereo operation on if you press the v button the stereo operation is switched off The new setting Le ST ON or ST OFF starts flashing on the display Press the SET button to return to the top menu level The display then switches back to the standard display Note Please note that a device that only delivers a mono signal see page 39 must be connected to jack socket left input The EK 300 IEM does not need to be set to mono operation The receiver automatically identifies the transmitted audio signal FocuS L ULLI Lil lt gt GEN co om CO OCC u u Da u ui Lid N ui Lu E a a a j 1 Loo ar Stereo FOCUS selection EK 300 IEM With the EK 300 IEM you can switch between stereo and FOCUS operation During stereo operation FOCUS OFF the left right signals are available as usual SR 300 IEM transmitter in stereo mode During FOCUS operation the left right signals are m
27. urfaces 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 antenna The SR 300 IEM transmitter can be used with either a telescopic antenna supplied or a remote antenna available as an accessory The supplied telescopic antenna can be mounted quickly and easily to the rear of the transmitter and is suitable for all applications where good transmission conditions provided a wireless transmission system is to be used without a large amount of installation work gt Connect the telescopic antenna to BNC socket at the rear of the transmitter and pull the end cap to extend the antenna If the transmitter position is not the best antenna position for optimum transmission you can use a remote antenna available as an accessory Connecting the mains unit gt Insert the DC connector on the power supply output cable into socket at the rear of the transmitter gt Pass the cable through the cable grip as illustrated an the pre amplifier mixing console Laem Connect the outputs from the pre amplifier mixing console etc to the oo 1 6 3 mm jack sockets left or MONO and right ros aurama Both balanced and unbalanced connection is possible Note Any d
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