Sennheiser Ew 300 IEM Manual de usuario

INSTRUCTION MANUAL evolution wireless

In-Ear Monitoring System

ew 300 IEM

1 Contents

Chap. Contents Page

1 Contents............................................................................................ 34

2 Short description .............................................................................. 35

3 System components .......................................................................... 35

4 Important notes ................................................................................ 35

5 Preparing the devices for use ........................................................... 37

SR 300 IEM stereo transmitter ................................................. 37

EK 300 IEM stereo pocket receiver .......................................... 40

6 Operation .......................................................................................... 43

7 Troubleshooting ............................................................................... 54

8 Care and maintenance ..................................................................... 55

9 Overview .......................................................................................... 56

Wireless transmission system .................................................... 56

HDX noise reduction.................................................................... 57

Technical data ............................................................................. 58

Accessories .................................................................................. 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 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 store 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.

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!

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:

You can hear ringing or whistling sounds in your ears.

You have the impression (even for a short time only) that you can no

longer hear high notes.

After using this system, your hearing is impaired for a short time.

In all of 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.

Headphone output, 1/4” (6.3 mm) jack socket (PHONES)

Headphone volume control (VOL)

LC display

button (UP)

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, 1/4” (6.3 mm) jack socket (left and MONO)

(AF IN BAL/UNBAL)

Audio input, 1/4” (6.3 mm) jack socket (right)

(AF IN BAL/UNBAL)

BNC socket, antenna output (ANT)

5 Preparing the devices for use

SR 300 IEM stereo transmitter

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).

씰Ensure 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 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.

씰Connect 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

씰Insert the DC connector on the power supply output cable into socket

at the rear of the transmitter.

씰Pass the cable through the cable grip , as illustrated.

Connecting the pre-amplifier/mixing console

씰Connect the outputs from the pre-amplifier/mixing console/etc. to the

1/4” (6.3 mm) jack sockets (left or MONO) and (right).

Both balanced and unbalanced connection is possible.

Note:

Any device that is only suitable for mono operation must be connected

to jack socket . In this case, the stereo operation must be switched

off via the menu.

Switching the transmitter on/off

씰Press the POWER button to switch the transmitter on.

씰To switch the transmitter 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).

Connecting the headphones/monitoring the audio signal

씰Connect the headphones to the headphone output (PHONES) 

for monitoring the audio signal. Only connect headphones with a

1/4” (6.3 mm) stereo jack plug.

씰Use 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!

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.

1/4” (6.3 mm) jack plug

balanced unbalanced

1/4” (6.3 mm) stereo jack plug

for headphone connection

EK 300 IEM stereo pocket receiver

Antenna

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

button (DOWN)

button (UP)

Inserting and changing the battery

씰Slide the cover of the battery compartment in the direction of the

embossed arrow until it clicks audibly.

씰Open the cover.

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

when inserting the battery.

씰Close the battery compartment.

씰To 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

씰Screw 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 Sennheiser

stereo headphones.

씰Connect 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!

3.5 mm stereo jack plug

for headphone connection

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 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.

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