Page 1
Instructions for use
W 300 IEM
39
Page 2
.
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Thank you for choosing Sennheiser!
We have designed this product to give you reliable operation over many
years. Over half a century of accumulated expertise in the design and
manufacture of high-quality electro-acoustic equipment have made
Sennheiser a world-leading company in this field.
Please take a few moments to read these instructions carefully, as we want
you to enjoy your new Sennheiser products quickly and to the fullest.
Page 3
Contents
The ew 300 IEM G2 system .................................................................................. 42
The channel bank system ............................................................................................. 42
Safety instructions ................................................................................................. 43
System components .............................................................................................. 43
Overview of operating controls ........................................................................... 44
SR 300 IEM G2 stereo transmitter ............................................................................... 44
EK 300 IEM G2 stereo receiver ..................................................................................... 45
Indications and displays on the transmitter ............................................................. 46
Indications and displays on the receiver ................................................................... 46
Preparing the components for use ..................................................................... 48
SR 300 IEM G2 stereo transmitter ............................................................................... 48
EK 300 IEM G2 stereo receiver ..................................................................................... 51
Using the components .......................................................................................... 52
Switching the components on/off .............................................................................. 52
Adjusting the volume .................................................................................................... 52
Adjusting the balance .................................................................................................... 53
Activating/deactivating the lock mode ..................................................................... 53
Attaching the receiver to clothing .............................................................................. 53
The operating menu ............................................................................................... 54
The buttons ..................................................................................................................... 54
Overview of menus ......................................................................................................... 55
Working with the operating menu ............................................................................. 55
Operating menu of the stereo transmitter ................................................................ 57
Operating menu of the stereo receiver ...................................................................... 59
Adjustment tips for the operating menu .......................................................... 62
Switching between channel banks ............................................................................. 62
Switching between the channels in a channel bank ............................................... 62
Selecting the frequencies to be stored in the channel bank “U” .......................... 62
Scanning the channel banks for free channels (receiver only) ............................. 62
Multi-channel operation ................................................................................................ 63
Adjusting the squelch threshold (receiver only) ...................................................... 63
Stereo/FOCUS selection (receiver only) ..................................................................... 64
Limiting the volume at the headphone output (receiver only) ............................ 64
Activating/deactivating the frequency boost (receiver only) .............................. 64
Adjusting the sensitivity (transmitter only) ............................................................ 64
Selecting the standard display .................................................................................... 65
Entering a name .............................................................................................................. 65
Loading the factory-preset default settings ............................................................. 66
Activating/deactivating the pilot tone evaluation (receiver only) ...................... 66
Adjusting the contrast of the graphic display (transmitter only) ....................... 66
Stereo/Mono selection (transmitter only) ................................................................ 66
Activating/deactivating the lock mode ..................................................................... 67
Exiting the operating menu .......................................................................................... 67
Troubleshooting ...................................................................................................... 68
Error checklist .............................................................................................. 68
Recommendations and tips .......................................................................................... 69
Care and maintenance ........................................................................................... 69
Additional information .......................................................................................... 70
HDX noise reduction ..................................................................................... 70
Wireless transmission systems ................................................................................... 70
Squelch ............................................................................................................................. 71
Specifications .......................................................................................................... 72
Connector assignment ................................................................................................... 73
Accessories .............................................................................................................. 74
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The ew 300 IEM G2 system
With the Sennheiser evolution wireless in-ear monitoring system ew 300 IEM G2
(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 G2 is a highquality state-of-the-art RF transmission systems with a high level of
operational reliability and ease of use. Transmitter and receiver permit
wireless transmission with studio-quality sound. The excellent transmission
reliability of the ew 300 IEM G2 system is based on the use of
y further optimized PLL synthesizer and microprocessor technology,
y the HDX noise reduction system,
y the pilot tone squelch control (during stereo operation),
y and the scan function for scanning the channel banks for free channels.
The channel bank system
The ew 300 IEM G2 system is available in five UHF frequency ranges with
1440 transmission/receiving frequencies per frequency range. 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 to 554 MHz
Range B: 626 to 662 MHz
Range C: 740 to 776 MHz
Range D: 786 to 822 MHz
Range E: 830 to 866 MHz
Transmitter and receiver have nine channel banks with up to 12 switchable
channels each.
42
The channel banks “1” to “8” have switchable channels that are factorypreset to a transmission/receiving frequency (see enclosed frequency table).
These transmission/receiving frequencies cannot be changed but have been
preset so that e.g. country-specific regulations on frequency usage are taken
into account. The channel bank “U” (user bank) has up to 12 switchable
Page 5
channels to store your selection out of 1440 transmission/receiving
frequencies that are freely selectable within the preset frequency range.
An advantage of the factory-preset frequencies is that
y the system is ready for immediate use after switch-on,
y several in-ear monitoring systems can be operated simultaneously on the
preset channels without causing intermodulation interference.
Safety instructions
Never open electronic units! If units are opened by customers in breach of this
instruction, the warranty becomes null and void.
Keep the units away from central heating radiators and electric heaters.
Never expose them to direct sunlight.
Use the units in dry rooms only.
Use a damp cloth for cleaning the units. 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 are sure signs that you have been
subjected to excessive noise for too long a time:
y You can hear ringing or whistling sounds in your ears.
y You have the impression (even for a short time only) that you can no longer
hear high notes.
System components
The system consists of:
y 1 EK 300 IEM G2 stereo receiver
y 1 SR 300 IEM G2 stereo transmitter
y 2 batteries
y 1 telescopic antenna for SR 300 IEM G2
y 1 NT 2-1 mains unit
y IE 3 in-ear headphones
y Instructions for use
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Overview of operating controls
SR 300 IEM G2 stereo transmitter
Operating controls Graphic display panel
Headphone output (PHONES),
¼” (6.3 mm) jack socket
Headphone volume control (VOL)
Graphic display, backlit
/ rocker button, backlit
SET button, backlit
ON button, backlit
(serves as the ESC (cancel) key in the
operating menu)
Cable grip for power supply DC cable
DC socket for connection of mains unit (DC IN)
Audio input (AF IN BAL/UNBAL),
XLR-3F socket (left and MONO)
Audio input (AF IN BAL/UNBAL),
XLR-3F socket (right)
Service interface (DATA)
Type plate
Antenna output (ANT), BNC socket
Display for the current channel bank “1...8, U”
Display for the current channel number “1...12”
“B.CH“ – abbreviation for channel bank and
channel number
Alphanumeric display
“MHz“ – appears when the frequency is displayed
Level display for audio signal “AF I” (left and MONO),
with “PEAK” warning
Level display for audio signal “AF II” (right),
with “PEAK” warning
Lock mode icon
(lock mode is activated)
Note:
For further illustrations and examples of the different
standard displays, please refer to the section
“Selecting the standard display“ on page 65.
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EK 300 IEM G2 stereo receiver
Alphanumeric display
“B.CH“ – appears when the channel bank and
the channel number are displayed
“MHz“ – appears when the frequency is displayed
4-step battery status display
Lock mode icon
(lock mode is activated)
“PILOT” display
(pilot tone evaluation is activated)
“MUTE” display
(audio output is muted)
7-step level display for received audio signal “AF”
7-step level display for received RF signal “RF”
Operating controls LC display panel
Headphone output (PHONES), 3.5 mm jack socket
Antenna
Red LED for operation and
battery status indication (ON/LOW BAT)
Green LED for RF signal indication (RF)
SET button
/ rocker button (DOWN/UP)
Battery compartment
Battery compartment cover
Unlocking button
ESC button
LC display
On/off/volume control
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Page 8
Indications and displays on the transmitter
Modulation display
The level display for audio signal “AF” shows the modulation of the
transmitter.
When the transmitter’s audio input level is excessively high, the level display
for audio signal “AF” shows full deflection.
When the transmitter is overmodulated frequently or for an extended period
of time, the text “PEAK” (backlit in red) flashes in alternation with the
standard display.
Button backlighting
During standby operation, the ON button is backlit in red. When the
transmitter is switched on, the SET button and the / button are
additionally backlit in green.
Indications and displays on the receiver
Operation and battery status indication
The red LED (LOW BAT/ON) provides information on the current operating
state of the receiver:
Red LED lit up: The receiver is switched on and the capacity of the
batteries/accupack BA 2015 is sufficient.
Red LED flashing: The batteries are/the accupack BA 2015 is going flat
In addition, the 4-step battery status display on the display panel provides
information on the remaining battery/accupack BA 2015 capacity:
3 segments: capacity approx. 100 %
2 segments: capacity approx. 70 %
1 segment: capacity approx. 30 %
Battery icon flashing: LOW BAT
Modulation display of the receiving transmitter
The level display for audio signal “AF” shows the modulation of the
transmitter.
(LOW BAT)!
When the transmitter’s audio input level is excessively high (AF peak), the
receiver’s level display for audio signal “AF” shows full deflection.
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“MUTE” display
The “MUTE” display appears on the display panel when the RF signal of the
received transmitter is too weak.
“PILOT” display
The “PILOT” display appears on the display panel when the pilot tone
evaluation is activated (see “Activating/deactivating the pilot tone
evaluation (receiver only)” on page 66).
RF signal indication
The green LED (RF) at the front of the receiver lights up when an RF signal
is being received.
However, the green LED (RF) does not light up when the audio output is
muted because
y the RF signal of the received transmitter is too weak,
y the transmitter is set to mono operation and the receiver’s pilot tone
evaluation is activated.
Display backlighting
After pressing a button, the display remains backlit for approx. 15 seconds.
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Page 10
Preparing the components for use
SR 300 IEM G2 stereo transmitter
Mounting the transmitter feet
To ensure that the transmitter cannot slip on the surface on which it is placed,
four self-adhesive soft rubber feet are supplied.
Ensure that the base of the transmitter is clean and free from grease
before mounting the rubber feet.
Fix the rubber feet to the base of the transmitter by peeling of the safety
paper and fitting them as shown in the digram on the left.
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 staining.
Connecting the antenna
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.
Connect the telescopic antenna to the BNC socket at the rear of the
transmitter.
Pull the end cap to extend the telescopic antenna .
Use a remote antenna (available as an accessory) when the transmitter
position is not the best antenna position for optimum transmission.
Connecting the mains unit
The transmitter is powered via a mains unit.
Pass the cable through the cable grip .
Insert the DC connector on the mains cable into the DC socket .
Connecting the amplifier/mixing console
Connect the amplifier/mixing console to the XLR-3F sockets (left and
MONO) or (right).
48
Both balanced and unbalanced connection is possible (see “Connector
assignment” on page 73).
Note:
Any unit that is only suitable for mono operation must be connected to
XLR-3F socket . In this case, set the transmitter to mono operation via
the menu.
Page 11
Via the “Sensitiv” menu, adjust the transmitter’s input sensitivity (see
“Adjusting the sensitivity (transmitter only)” on page 64).
Connecting the headphones/monitoring the audio signal
To monitor the audio signal, connect headphones with a ¼” (6.3 mm)
jack plug to the headphone output (PHONES) .
Neue Abbildung
Attention! High volume!
Even short exposure to high volume levels will damage your hearing!
Set the volume for the connected headphones to the minimum before
putting the headphones on.
First, set the volume control ! to the lowest volume by turning it to the
left as far as possible. Then gradually turn up the volume.
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.
Service interface
The service interface is only required for servicing purposes.
#
'
"
%
$
19” rack adapter and antenna mount
For mounting one or two transmitters into a 19” rack, you require the GA 2
rack adapter (available as an accessory). The GA 2 rack adapter consists of:
y 2 rack mount “ears” "
y 1 connecting bar #
y 1 connecting plate $
y 2 covering plugs % for antenna holes
y 12 recessed head screws M 3x6
y 2 recessed head screws M 6x10
When mounting only one transmitter into a rack, you can use the AM 2
antenna mount (available as an accessory) to mount the transmitter’s
antenna connection to the front of the GA 2 rack adapter. The AM 2 antenna
mount consists of:
y 2 BNC extension cables (screw-in BNC socket & to BNC connector ')
&
y 2 plains washers
y 2 nuts
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Page 12
"
$
"
To mount two transmitters into a rack:
Place the two transmitters side by side onto a flat
surface, their bottom sides facing upwards.
Align the connecting plate $ over the holes in the
bottom sides of the transmitters.
Secure the connecting plate $ using eight of the
supplied recessed head screws (M 3x6).
Hook the two rack mount “ears” " to the front panels
of the transmitters.
Secure the rack mount “ears” to the transmitters
using two of the supplied recessed head screws
(M 3x6) respectively.
Slide the transmitters into the 19” rack.
Secure the rack mount “ears” to the rack.
'
"
&
"
#
#
%
When mounting only one transmitter into a rack, use the
connecting bar # instead of the second transmitter.
Hook the two rack mount “ears” " to the front panels
of the transmitter.
Secure the rack mount “ears” to the transmitter using
two of the supplied recessed head screws (M 3x6)
respectively.
Secure the connecting bar # to one of the rack mount
“ears” " using two of the supplied recessed head
screws (M 6x10).
If you are not front mounting the antennas, insert the
two covering plugs % into the antenna holes of the
connecting bar.
Slide the transmitter into the 19” rack.
Secure the rack mount “ears” to the rack.
To mount the transmitter’s antenna connection to the
front of the GA 2 rack adapter using the AM 2 antenna
mount:
Screw the BNC socket & of the BNC extension cables
to the connecting bar # using the supplied plain
washer and nut.
50
Connect the BNC connector ' to the BNC socket at
the rear of the transmitter.
Slide the transmitter into the 19” rack.
Secure the rack mount “ears” to the rack.
Connect the telescopic antenna to the BNC
socket &.
Pull the end cap to extend the telescopic antenna.
Page 13
EK 300 IEM G2 stereo receiver
Inserting and replacing the batteries
For powering the EK 300 IEM G2 receiver, two 1.5 V AA size batteries are
required.
Press the two unlocking buttons and open the battery compartment
cover .
Insert the two batteries as shown in the diagram on the left. Please
observe correct polarity when inserting the batteries.
Close the battery compartment. The battery compartment cover locks
into place with an audible click.
Inserting and charging the accupack
The receiver can also be powered via the rechargeable Sennheiser BA 2015
accupack. Insert the accupack into the battery compartment as described above.
The transmitter has two charging contacts and a sensing contact on its short
sides. The accupack can be recharged while remaining in the transmitter. Insert
the transmitter into the L 2015 charger (see operating manual of the L 2015
charger).
Note:
For accupack operation of the receiver, only use the BA 2015 accupack In
order to ensure optimum operational reliability. For charging the accupack,
only use the L 2015 charger. Both the accupack and the charger are
available as accessories. The accupack is fitted with an integrated sensor
which is – via a third contact – monitored by the electronics of the receiver
and the charger. The sensor is necessary for the following control purposes:
y The taking into account of the different voltage characteristics of pri-
mary cells (batteries) and accupacks. The battery status indications on
the displays, the transmission of transmitter battery status information
to the rack-mount receivers and the switch-off thresholds at the end of
the operating time are corrected correspondingly. Due to the missing
sensor, individual rechargeable battery cells will not be identified as
accupacks.
y The monitoring of the accupack temperature during charging in the
L 2015 charger.
y The prevention of improper charging of inserted primary cells (batte-
ries). Due to the missing sensor, individual rechargeable battery cells
will also not be charged in the L 2015 charger.
Connecting the headphones
If you use the receiver as part of the monitoring system, connect the
supplied in-ear headphones or any Sennheiser stereo headphones with
3.5 mm stereo jack plug to the headphone output (PHONES) .
Attention! High volume!
Even short exposure to high volume levels will damage your hearing!
Set the volume for the connected headphones to the minimum before
putting the headphones on.
First, set the volume control ! to the lowest volume by turning it to the
left as far as possible. Then gradually turn up the volume.
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.
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Page 14
Using the components
Switching the components on/off
Switching the transmitter on/off
Press the ON button to switch the transmitter on.
To switch the transmitter off, press the ON button until “OFF” appears on
the display.
Note:
The transmitter can only be switched off when the standard display is
shown on the display panel. Within the operating menu, the ON button
serves as the ESC (cancel) key, i.e you cancel your entry and return to the
standard display.
Switching the receiver on/off
To switch the receiver on, turn the volume control clockwise until it
clicks. The red LED lights up.
To switch the receiver off, turn the volume control counterclockwise
until it clicks. The red LED goes off.
Note:
y The receiver has a short switch-on delay.
y Remove the batteries or the accupack when the receiver will not be used
for extended periods of time.
Adjusting the volume
You can adjust the volume at the headphone output on both the transmitter
and the receiver.
Use the volume control ! or to adjust the volume of the connected
headphones.
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.
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Page 15
SR 300 IEM G2
Adjusting the balance
During stereo operation – and provided that the standard display is shown
on the display panel – the / rocker button serves to adjust the balance
between the left and right stereo signal.
During FOCUS operation, the / rocker button serves to adjust the
relative levels of the two separate channels in the mixed mono signal (see
“Stereo/FOCUS selection (receiver only)” on page 64).
Activating/deactivating the lock mode
Transmitter and receiver have a lock mode that can be activated or
deactivated via the operating menu (see “Activating/deactivating the lock
mode” on page 67). The lock mode prevents that
y the transmitter is accidentally programmed or switched off during
operation
y the balance setting is accidentally changed via the receiver’s / rocker
button.
EK 300 IEM G2
Attaching the receiver to clothing
The receiver is attached to clothing (e.g. belt, waistband) with the supplied
belt clip.
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The operating menu
To ensure intuitive operation of both transmitter and receiver, the operating
menus have been largely standardized. As a result, adjustments to the
settings can be made quickly and “without looking” – even in stressful
situations, for example on stage or during a live show or presentation.
The buttons
Buttons Mode To ...
Standard display switch the transmitter on and
off
ON
(transmitter only)
SET
/
Operating menu cancel the entry and return to
the standard display
Setting mode cancel the entry and return to
the standard display
Standard display get into the operating menu
Operating menu get into the setting mode of the
selected menu
Setting mode store the settings and return to
the previous menu level
Standard display without function (transmitter)
adjust the balance (receiver)
Operating menu change to the previous menu
() or change to the next menu
()
Setting mode adjust the setting of the
selected menu:
option (/)
Standard display without function
54
ESC
(receiver only)
Operating menu cancel the entry and return to
the standard display
Setting mode cancel the entry and return to
the standard display
Page 17
Overview of menus
Transmitter Receiver
Display Function of the menu Display Function of the menu
Bank Switching between channel banks BANK Switching between channel banks
Channel Switching between the channels in
a channel bank
Tune Setting a receiving frequency for the
channel bank “U” (user bank)
SCAN Scanning a channel bank for free
SQELCH Adjusting the squelch threshold
ST-FOC Stereo/FOCUS selection
LTD Limiting the volume at the
Hi-BST Activating/deactivating
Sensitiv Adjusting the sensitivity
Display Selecting the standard display DISPLY Selecting the standard display
Name Entering a name NAME Entering a name
Reset Loading the factory-preset
default settings
CHAN Switching between the channels in
a channel bank
TUNE Setting a receiving frequency for the
channel bank “U” (user bank)
channels
headphone output
the frequency boost
RESET Loading the factory-preset
default settings
PILOT Activating/deactivating
the pilot tone evaluation
LCD Contr Adjusting the contrast of the
graphic display
Mode Stereo/Mono selection
Lock Activating/deactivating the lock mode LOCK Activating/deactivating the lock mode
Exit Exiting the operating menu and
returning to the standard display
EXIT Exiting the operating menu and
returning to the standard display
Working with the operating menu
By way of example of the “Tune” menu, this section describes how to use the
operating menu.
After switching the unit on, the standard display is shown on the display
panel.
SR 300 IEM G2
EK 300 IEM G2
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Page 18
Getting into the operating menu
Press the SET button to get from the standard display into the operating
menu.
The last menu selected flashes on the display. With the transmitter, the
current setting is additionally displayed.
Selecting a menu
Press the / buttons to select a menu.
Press the SET button to get into the setting mode of the selected menu.
With the receiver, the current setting that can be adjusted flashes on the
display. With the transmitter, the name of the menu and the current
setting are displayed.
Adjusting a setting
Press the / buttons to adjust the setting.
By briefly pressing the / buttons, the display jumps either forwards or
backwards to the next setting. In the “Channel”, “Tune” and “Name”
menu, the /
a button, the display cycles continuously. The “fast search” function
allows you to get fast and easily to your desired setting. With the receiver,
the new setting flashes on the display until it is stored.
buttons feature a “fast search” function. If you hold down
Storing a setting
Press the SET button to store the setting. “Stored” appears on the display,
indicating that the setting has been stored. The display then returns to
the top menu level.
With most menus, new settings become effective immediately without
having to be stored. An exception are the “Bank”, “Channel”, “Tune” and
“Reset” menus of the transmitter and the “RESET” menu of the receiver.
With these menus, new settings only become effective after they have
been stored (“Stored” appears on the display, indicating that the setting
has been stored).
Exiting the operating menu
Select the “Exit” menu to exit the operating menu and to return to the
standard display.
When you have entered the operating menu, the transmitter’s ON button
serves as the ESC (cancel) key, i.e. by briefly pressing this button, you
cancel your entry and return to the standard display. The receiver has a
separate ESC button with which you can cancel your entry.
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Page 19
Operating menu of the stereo transmitter
SET
Exit
SET
Menu
Exit
Bank 1
Channel 01
Changing the channel bank
Menu
Bank 3
Channel 01
Tune 786.400MHz
Changing the channel
Menu
Channel 08
Tune 807.900MHz
Sensitiv –24 dB
Setting the frequency for
channel bank "U"
Bank
1.01
B.CH
Current channel bank
SET
Channel
3.01
B.CH
Current channel and
corresponding frequency
SET
Tune
U.01
B.CH
Current frequency on the
selected channel
786.300 MHz
Stored
790.250 MHz
Stored
786.300 MHz
Stored
Bank
3.01
B.CH
/ :
SET
790.250 MHz
1...8, U (User Bank)
:
Stores the setting
Channel
3.08
B.CH
/ :
SET
807.900 MHz
Channel 01...12
:
Stores the setting
Tune
U.01
B.CH
/ :
in steps of 25 kHz
SET
797.075 MHz
Transmission frequency
:
Stores the setting
Menu
Tune 797.075MHz
Sensitiv –24 dB
Display Frequency
Setting the sensitivity
Menu
Sensitiv –8 dB
Display Frequency
Name VOCAL
Switching between the
standard displays
Menu
Display Name
Name VOCAL
Reset
Assigning the transmitter a
name
Reset
SET
SET
Frequency
SET
Sensitiv
Current sensitivity setting
–24 dB
Stored
Display
Frequency
Current standard display
Stored
Bank/Channel
Name
OCAL
Current transmitter name
Stored
Sensitiv
/ :
0...–24 dB,
Sensitivity in steps of 8 dB
SET
:
Stores the setting
–8 dB
Display
Name
/ :
Frequency,
Bank/Channel, Name
SET
:
Stores the setting
Name
Name
CAL
G
/ :
Name (10 characters)
Letters w/o pronounciation
marks, numbers from 0...9,
special characters, spaces
SET: 9 x next character, then
store
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Page 20
Name GUITAR
Menu
Name GUITAR
Reset
LCD Contr IIIIII.....
Loading the factory-preset
default settings
Menu
Reset
LCD Contr IIIIII.....
Mode Stereo
Adjusting the contrast of the
graphic display
Menu
LCD Contr IIIIIIIIII......
Mode Stereo
Lock Off
Switching between stereo
and mono operation
SET
Reset
Reset? No
Security check
SET
LCD Contrast
IIIIII..........
Current contrast setting
SET
Mode
Stereo
Current setting
STORED
Reset
Reset? Yes
/ :
No, Yes
"reset"= Yes:
SET: Transmitter loads factory-
preset default settings,
transmitter is restarted,
standard display appears
"reset"= No:
SET: Reset is cancelled
LCD Contrast
IIIIIIIIII......
/ :
16 steps
SET:
Stores the setting
Mode
Mono
/ :
Stereo, Mono
SET:
Stores the setting
Menu
Mode Mono
Lock Off
Exit
Activating the lock mode
Menu
Lock On
Exit
Bank 3
Exiting the operating menu
Bank 3
SET
SET
STORED
Lock
Off
Lock mode activated or
deactivated
STORED
Lock
On
/ :
On, Off
Lock mode = On:
SET:
Stores the setting,
returns to standard display
Lock mode = Off:
SET:
Stores the setting
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Operating menu of the stereo receiver
LO
HI
790.025
791.125
EXIT
SET
Changing the channel
bank
Changing the channel
Setting the frequency
for channel bank "U"
BANK
CHAN
TUNE
SET
SET
SET
BANK 1 BANK U
/ :
Current channel bank
1...8, U (User
Bank)
:
Stores the setting
SET
STORED
1.01
Current channel or
frequency
B.CH
1.12
/ :
Channel 01...12
SET
:
Stores the setting
STORED
790.025
Current frequency on
the selected channel
MHz MHz
791.125
/ :
Receiving
frequency in steps of
25 kHz
SET
:
Stores the setting
STORED
B.CH
SCAN
Scanning the selected
channel bank for free
channels
SQELCH
Setting the squelch
threshold
ST--FOC
SET
SET
U. U.
START
/ :
09 CH FREE
SET
STORED
Start scan = START
SET: Scans the selected
channel bank for free
channels
Delete result = CLEAR
SET: Releases locked
channels
SQ LO
Current squelch
threshold
/ :
SET
STORED
CLEAR
CLEAR, START
SQ HI
LO, MID, HI
:
Stores the setting
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SQELCH
OFF
ON
OFF
ON
CHAN
NAME
ST--FOC
Switching between
stereo and FOCUS
operation
LTD
Limiting the volume at
the headphone output
HI--BST
Boosting the AF
frequency response
DISPLY
Switching between the
standard displays
SET
SET
SET
SET
STEREO FOCUS
Current setting
/ :
SET
:
Stores the setting
STORED
LTD.OFF
Limiter activated or
deactivated
LTD. ON
/
: OFF, ON
SET
:
Stores the setting
STORED
HB.OFF
Frequency boost
activated or deactivated
HB. ON
/ :
SET: Stores the setting
STORED
CHAN
Current standard display
NAME
/
: FREQ, NAME,
CHAN
SET
:
Stores the setting
Stereo, Focus
OFF, ON
NAME
Assigning the receiver
a name
RESET
SET
STORED
VOCAL GUCAL
Current receiver name
/ :
Enter a name (6
characters)
pronounciation marks,
numbers from 0...9, special
characters, spaces
SET: 5 x next character,
then store
STORED
Letters w/o
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NAME
ON
OFF
OFF
ON
15
NO
OK
RESET
Loading the factorypreset default settings
SET
RST. NO
Security check
RST. OK
/ :
OK, NO
"reset" = OK:
SET:
preset default settings (only
pilot tone setting is kept),
receiver is restarted,
standard display appears
"reset" = NO
SET
:
Receiver loads factory-
Reset is cancelled
PILOT
Activating/deactivating
the pilot tone
transmission
LOCK
Activating the lock mode
EXIT
Exiting the operation
SET
SET
SET
PLT. ON
Pilot tone transmission
activated or deactivated
STORED
LOC.OFF
Lock mode activated or
deactivated
STORED
PLT. OFF
/ :
ON, OFF
SET
:
Stores the setting
LOC. ON
/ :
ON, OFF
Lock mode = ON:
SET: Stores the setting,
("STORED") returns to
standard display
Lock mode = OFF:
SET: Stores the setting
BANK
Adjusting the balance
BAL.L 1
Current balance setting
BAL.R 15
/ :
BAL.L 1...15,
BAL.--0--, BAL.R 1...15
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Adjustment tips for the operating menu
Switching between channel banks
BANK
Bank
CHAN
Channel
Via the “Bank” menu, you can switch between the nine channel banks of the
ew 300 IEM G2 transmitter and receiver. The channel banks “1” to “8” have
up to 12 switchable channels that are factory-preset to a transmission/
receiving frequency (see “The channel bank system” on page 42). The
channel bank “U” (user bank) also has up to 12 switchable channels to store
your selection out of 1440 transmission/receiving frequencies that are freely
selectable within the preset frequency range.
When switching from one channel bank to another, the channel with the
lowest channel number is automatically displayed. If, during the last scan of
this channel bank, an interfering frequency was detected on the channel with
the lowest channel number, the receiver display panel automatically displays
the next free channel (see below).
Switching between the channels in a channel bank
Via the “Channel” menu, you can switch between the channels in a channel
bank.
Always set the transmitter and the receiver of a transmission link to the same
channel. After scanning a channel bank (see “Scanning the channel banks for
free channels (receiver only)” on page 62), only the free channels are
displayed. Set the transmitter to one of the free channels
TUNE
Tune
SCAN
Selecting the frequencies to be stored
in the channel bank “U”
Via the “Tune” menu, you can select the frequencies to be stored in the
channel bank “U” (user bank).
When you have selected one of the channel banks “1” to “8” and then select
the “Tune” menu, the transmitter or receiver automatically switches to
channel 01 of the channel bank “U”. In this case, “U.01” briefly appears on
the display.
Use the / buttons to select the desired transmission or receiving
frequency. Transmission and receiving frequencies are tunable in 25-kHz
steps within a switching bandwidth of 36 MHz max. For intermodulationfree frequencies, please refer to the enclosed frequency table.
Scanning the channel banks for free channels
(receiver only)
Before putting one or several transmission links into operation, you should
scan the selected channel bank for free channels.
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Starting the scan and storing the scan result
Before starting the scan, switch all transmitters of your system off, since
channels used by switched-on transmitters will not be displayed as “free
channels”.
Select the “SCAN” menu.
Select “START” and confirm your selection by pressing the SET button.
After the scan is completed, the number of free channels is displayed.
Pressing the SET button once more will store the scan result and lock all
channels that are used or subject to interference.
Releasing locked channels
Select the “SCAN” menu.
Select “CLEAR” and confirm your selection by pressing the SET button. All
channels in this channel bank can now be selected again.
Multi-channel operation
For multi-channel operation, only use the free channels in a channel bank.
Before putting the transmission links into operation, we recommend
performing an auto scan.
SQELCH
Select a channel bank on a receiver.
Scan this channel bank for free channels. If not enough free channels are
available in the selected channel bank, repeat the scan with another
channel bank.
Apply the scan result to all other transmitters and receivers.
Adjusting the squelch threshold (receiver only)
The receiver is equipped with a squelch that can be adjusted via the “SQELCH”
menu. The squelch eliminates annoying noise when the transmitter is
switched off. It also suppresses sudden noise when there is no longer
sufficient transmitter power received by the receiver.
Note:
Before adjusting the squelch threshold to a different setting, use the
volume control to set the volume for the connected headphones to the
minimum.
There are three possible squelch settings:
y LO = low
y MID = middle
y HI = high
Selecting the setting “LO” reduces the squelch threshold, selecting the
setting “HI” increases the squelch threshold. Adjust the squelch threshold –
with the transmitter switched off – to the lowest possible setting that
suppresses hissing noise.
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IMPORTANT! Notes:
y If the squelch threshold is adjusted too high, the transmission range will
be reduced. Therefore, always adjust the squelch threshold to the
lowest possible setting. The squelch threshold is factory-preset to “LO”.
y When in the setting mode of the “SQELCH” menu, pressing the
button for more than three seconds will switch the squelch off.
“SQ.OFF” appears on the display. If no RF signal is being received, hissing noise will occur. This setting is for test purposes only.
Stereo/FOCUS selection (receiver only)
ST-FOC
LTD
Via the “ST-FOC” menu, you can switch between stereo and FOCUS operation.
In both operating modes, the SR 300 IEM G2 stereo transmitter has to be set
to stereo operation.
When the receiver is set to stereo operation, the left-right signals are
available as usual.
When the receiver is set to FOCUS operation, the left-right signals are mixed
and are available as a mono signal in both headphone channels. Use the /
rocker button to adjust the relative levels of the two separate channels in
the mixed mono signal (see “Adjusting the balance” on page 53).
Limiting the volume at the headphone output (receiver
only)
Via the “LTD” menu, you can switch the limiter on and off. With the limiter
switched on, the volume at the headphone output will be reduced.
Activating/deactivating the frequency boost (receiver
only)
64
HI-BST
Sensitiv
Via the “HI-BST” menu, you can boost the AF frequency response at 10 kHz.
As a result, headphones with magnetic transducers sound better.
Adjusting the sensitivity (transmitter only)
To match the transmitter to the output level of the connected unit (e.g.
mixing console), you can adjust the input sensitivity in four steps of 8 dB via
the “Sensitiv” menu.
The input sensitivity is adjusted too high when close talking distances,
speakers with loud voices or loud music passages cause overmodulation in
the transmission link. In this case, the transmitter’s “PEAK” warning will light
up and the receiver’s level display for audio signal “AF” will show full
deflection.
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 is correctly adjusted when the level display for audio signal
“AF” shows full deflection only during the loudest passages.
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Selecting the standard display
DISPLY
Display
Via the “Display” menu, you can select the standard display.
SR 300 IEM G2 stereo transmitter
Selectable standard display Contents of standard display
“Frequency”
(display of the frequency)
“Bank/Channel”
(display of the channel bank
and channel number)
“Name”
(display of the freely selectable
name)
EK 300 IEM stereo receiver
Selectable standard display Contents of standard display
NAME
Name
“FREQ”
“NAME”
“CHAN”
Entering a name
Via the “Name” menu, you can enter a freely selectable name for the
transmitter and the receiver. You can, for example, enter the name of the
performer for whom the adjustments have been made.
The name can be displayed on the standard display and can consist of up to
ten characters (transmitter) and up to six characters (receiver) such as:
y letters (without pronounciation marks),
y numbers from 0 to 9,
y special characters e.g. () - . _ and spaces.
To enter a name, proceed as follows:
Press the SET button to get into the setting mode of the “Name” menu.
The first segment starts flashing on the display.
With the / buttons you can now select a character. By briefly pressing
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a button, the display jumps either forwards or backwards to the next
character. If you hold down a button, the display starts cycling
continuously.
Press the SET button to change to the next segment and select the next
character.
Have you entered the name completely? Press the SET button to store
your setting and to return to the previous menu level.
Loading the factory-preset default settings
RESET
Reset
PILOT
Pilot
Via the “Reset” menu, you can load the factory-preset default settings. With
the receiver, however, the selected setting for the pilot tone remains
unchanged. After the reset, the unit is restarted and the standard display is
shown on the display panel.
Activating/deactivating the pilot tone evaluation
(receiver only)
Via the “Pilot” menu, you can activate or deactivate the pilot tone evaluation
of the receiver. The pilot tone is used
y to code the transmitter’s stereo signal,
y to support the squelch function (Squelch).
During stereo operation, the transmitter adds the pilot tone to the
transmitted stereo signal and the receiver detects and evaluates the pilot
tone. When the transmitter is set to mono operation, deactivate the pilot
tone evaluation on the receiver.
You can combine units of first and second generation ew 300 IEM systems
without any problems.
LCD-Contr
Mode
Adjusting the contrast of the graphic display (transmitter
only)
Via the “LCD Contr” menu, you can adjust the contrast of the graphic display
in 16 steps.
Stereo/Mono selection (transmitter only)
Via the “Mode” menu, you can switch the transmitter between mono and
stereo operation.
Note:
Connect any unit that only delivers a mono signal to the transmitter’s left
XLR-3F socket and set the transmitter to mono operation. The receiver
automatically “identifies” the transmitted audio signal and does not need
to be set to mono operation. However, you have to deactivate the pilot
tone evaluation on the receiver.
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Activating/deactivating the lock mode
SR 300 IEM G2
EK 300 IEM G2
LOCK
Lock
EXIT
Exit
Via the “Lock” menu, you can activate or deactiveate the lock mode.
The lock mode icon on the display indicates that the lock mode is activated.
To deactivate the lock mode, first press the SET button. Then press the /
buttons to select “Lock Off”. If you confirm your selection by pressing the SET
button, the buttons can be operated as usual.
Exiting the operating menu
Via the “Exit” menu, you can exit the operating menu and return to the
standard display.
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Troubleshooting
Error checklist
Problem Possible cause Possible solution
No operation indication Batteries are flat or
accupack is flat (receiver only)
No mains connection (transmitter
only)
No RF signal Transmitter and receiver are not on
the same channel
Transmitter is out of range Check the squelch threshold setting
RF signal available, no audio
signal, “MUTE” display
appears on the display panel
Audio signal has a high level
of background noise
Audio signal is distorted Transmitter sensitivity is adjusted
Transmitter is set to mono operation
and the pilot tone evaluation of the
receiver is activated
Receiver’s squelch threshold is
adjusted too high
Transmitter sensitivity is adjusted
too low
too high
Replace the batteries or
recharge the accupack
Check the connections of the mains
unit
Set transmitter and receiver to the
same channel
(see “Adjusting the squelch threshold
(receiver only)” on page 63) or
reduce the distance between
transmitter and receiving antenna
Deactivate the pilot tone evaluation
on the receiver
See “Adjusting the squelch threshold
(receiver only)” on page 63)
See “Adjusting the sensitivity
(transmitter only)” on page 64
See “Adjusting the sensitivity
(transmitter only)” on page 64
No access to a certain channel During scanning, an RF signal has
been detected on this channel and
the channel has been locked
If problems occur that are not listed in the above table or if the problems cannot be solved with the proposed
solutions, please contact your local Sennheiser agent for assistance.
See “Scanning the channel banks for
free channels (receiver only)” on
page 62
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Recommendations and tips
... for the EK 300 IEM G2 receiver
y The antenna of the EK 300 IEM G2 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 optimum reception
y 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.
y If, with the SR 300 IEM G2 transmitter, transmission conditions are
unfavourable, you should use a remote antenna which is connected via
antenna cable.
y To avoid overmodulating the receiver, observe a minimum distance of 5 m
between transmitting and receiving antennas.
y Observe a minimum distance of 50 cm between transmitting antennas and
metal objects (such as cross members or reinforced-concrete walls).
... for multi-channel operation
y For multi-channel operation, you can only use the channels in a channel
bank. Each of the channel banks “1” to “8” accommodates up to 12
factory-preset frequencies which are intermodulation-free. For alternative
frequency combinations, please refer to the enclosed frequency table. The
freely selectable frequencies can be selected via the “Tune” menu and can
be stored in the channel bank “U”.
y When using several transmitters simultaneously, interference can be
avoided by maintaining a minimum distance of 20 cm between two
transmitters. For multi-channel applications, use the AC 2 transmitter
combiner (see “Accessories” on page 73).
Care and maintenance
Use a slightly damp cloth to clean the units from time to time.
Note:
Do not use any cleansing agents or solvents.
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Additional information
HDX noise reduction
RF link
Inherent noise
of the RF link
Transmitter
The evolution wireless G2 series is equipped with HDX, the Sennheiser noise
reduction system that reduces RF interference. It increases the signal-tonoise ratio in wireless audio transmission to more than 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. 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.
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.
Receiver
Wireless transmission systems
70
With the ew 300 IEM G2 system, Sennheiser puts an end to cable tangles and
enables complete freedom of movement. 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.
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.
Page 33
Squelch
Pilot tone squelch
When the transmitter is set to stereo operation, it adds a 19-kHz pilot tone
to the audio signal. The receiver checks incoming audio signals to see if the
pilot tone is present. In the absence of the 19-kHz signal, the receiver’s audio
output will remain muted, even if a strong RF signal is present.
This prevents strong interfering signals from causing hissing noise in the
receiver when the transmitter is switched off.
Field strength-dependent squelch
Depending on the strength of the received RF signal, the receiver’s audio
output is opened or muted. Via the “SQELCH” menu of the receiver, the
squelch threshold can be adjusted in three steps (LO, MID, HI).
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Specifications
System
RF characteristics
Modulation wideband FM stereo, MPX pilot tone
Frequency ranges 518–554, 626–662, 740–776, 786–822, 830–866 MHz
Transmission/receiving frequencies 8 channel banks with up to 12 factory-preset channels each
1 channel bank with up to 12 freely selectable channels
(1440 frequencies, tunable in steps of 25 kHz)
Switching bandwidth 36 MHz
Nominal/peak deviation ±24 kHz/±48 kHz
Frequency stability ≤ ±15 ppm
AF characteristics
Noise reduction system Sennheiser HDX
AF frequency response 40–15,000 Hz
MPX pilot tone (Frequenz/Hub) 19 KHz/±4 kHz
S/N ratio (at 1 mV and peak deviation) ≥ 91 dB(A)
THD (at nominal deviation and 1 kHz) ≤ 0.9 %
General data
Temperature range –10 °C to +55 °C
Dimensions of carrying case [mm] 380 x 370 x 70
Weight of carrying case approx. 3000 g
IE 3 in-ear headphones
Frequency response 40–20,000 Hz
Max. SPL 118 dB SPL
Impedance 32 Ω
EK 300 IEM G2 stereo receiver
RF characteristics
Receiver principle non diversity
Sensitivity (with HDX, peak deviation) < 2.5 µV at 52 dBA
Adjacent channel rejection ≥ 70 dB
Intermodulation attenuation ≥ 70 dB
Blocking ≥ 80 dB
Squelch 4 steps: OFF
LO: 5 dBµV
MID: 15 dBµV
HI: 25 dBµV
Pilot tone squelch (MPX pilot tone) can be switched off
AF characteristics
Headphone output 3.5 mm jack socket
AF output voltage (at peak deviation 1 kHzAF) PHONES
2 x ≥ 100 mW at 32 Ω
S/N ratio
rms
Overall device
Power supply 2 AA size batteries, 1.5 V
Nominal voltage 2.4 V
Max. power consumption at nominal voltage approx. 190 mA (2 x 30 mW)
Power consumption with switched-off receiver ≤ 250 µA
Operating time (with batteries) 6–10 h (depending on volume level)
Operating time (with BA 2015 accupack) 6–10 h (depending on volume level)
Dimensions [mm] 82 x 64 x 24
Weight (incl. batteries) approx. 170 g
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SR 300 IEM G2 stereo transmitter
RF characteristics
RF output power at 50 Ω≥ 20 mW, internally adjustable to 10 mW
Antenna output BNC socket, 50 Ω
AF characteristics
Headphone output
¼’’ (6.3 mm) stereo jack socket
Output power at headphone output ≥ 100 mW at 32 Ω (2x)
AF input 2 x XLR-3 socket, balanced
Max. input voltage (at peak deviation, 1 kHz) +10dB
u
Input impedance 10 kΩ
Overall device
Power supply 10.5–16 V DC
Nominal voltage 12 V DC
Max. power consumption at nominal voltage approx. 300 mA
Dimensions [mm] 212 x 145 x 38
Weight approx. 1100 g
Connector assignment
SR 300 IEM G2:
¼’’ (6.3 mm) stereo jack
plug for headphone output
A 2003-UHF UHF antenna,
GZL 1019-A1 Antenna cable with BNC connectors 1 m
GZL 1019-A5 Antenna cable with BNC connectors 5 m
SR 300 IEM G2:
XLR-3M connector
21
+
3
SR 300 IEM G2:
DC connector for power
supply
EK 300 IEM G2:
3.5 mm stereo jack plug for
headphone output
Accessories
GA 2 19” rack adapter
AM 2 Antenna mount for mounting antennas to the front of the GA 2
A 1031-U UHF antenna,
passive, omni-directional, can be mounted onto a stand
passive, directional, can be mounted onto a stand
AC 2 Transmitter combiner,
for combining the RF signals of up to four transmitters onto a single antenna
and for powering up to four transmitters
NT 3 Plug-in mains unit for AC 2
IE 3 In-ear headphones
IES 3 1 pair of ear-moulds
BA 2015 Accupack
L 2015 Charger for BA 2015 accupack
CC 2 Carrying case for ew 300 IEM G2 system
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