For more detailed information on the individual sections of this instruction manual, visit the corresponding product page on our website at www.sennheiser.com.
Contents
Important safety instructions ............................................................................................................................................................. 2
The EM 2000 and EM 2050 rack-mount receivers ........................................................................................................................... 4
Areas of application ............................................................................................................................................................................ 4
The frequency bank system .............................................................................................................................................................. 4
Delivery includes ..................................................................................................................................................................................... 5
Overview of the displays ................................................................................................................................................................... 7
Putting the receiver into operation .................................................................................................................................................... 9
Preparing the receiver for use .......................................................................................................................................................... 9
Connecting the antennas .................................................................................................................................................................. 9
Daisy-chaining up to ten receivers ................................................................................................................................................ 11
Connecting an amplifier/mixing console ...................................................................................................................................... 12
Connecting receivers in a network ................................................................................................................................................ 12
Connecting the mains cable ............................................................................................................................................................ 12
Using the receiver ................................................................................................................................................................................. 13
Switching the receiver on/off ......................................................................................................................................................... 13
Monitoring the audio signal via headphones .............................................................................................................................. 13
Synchronizing a transmitter with the receiver ........................................................................................................................... 14
Deactivating the lock mode temporarily ...................................................................................................................................... 14
Muting the audio signal ................................................................................................................................................................... 15
Selecting a standard display ........................................................................................................................................................... 15
Using the operating menu .................................................................................................................................................................. 16
The buttons ........................................................................................................................................................................................ 16
Overview of the operating menu ................................................................................................................................................... 16
Working with the operating menu ................................................................................................................................................ 18
Adjusting settings via the operating menu ................................................................................................................................... 20
The main menu “Menu” ................................................................................................................................................................... 20
The extended menu “Advanced Menu“ ....................................................................................................................................... 23
The “Sync-Settings” submenu ....................................................................................................................................................... 26
The “Warnings” submenu ............................................................................................................................................................... 27
Standard displays with additional functions .............................................................................................................................. 27
Synchronizing a transmitter with the receiver .............................................................................................................................. 29
Cleaning the receiver ............................................................................................................................................................................ 31
If a problem occurs ... ........................................................................................................................................................................... 31
Index ........................................................................................................................................................................................................ 36
1
Important safety instructions
Important safety instructions
1. Read these instructions.
2. Keep these instructions. Always include these instructions when passing the receiver on
to third parties.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s
instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other
apparatus (including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized
plug has two blades with one wider than the other. A grounding type plug has two blades
and a third grounding prong. The wide blade or the third prong are provided for your
safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10.Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
11.Only use attachments/accessories specified by the manufacturer.
12.Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or
sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
13.Unplug this apparatus during lightning storms or when unused for long periods of time.
14.Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been damaged in any way, such as power
supply cord or plug is damaged, liquid has been spilled or objects have fallen into the
apparatus, when the apparatus has been exposed to rain or moisture, does not operate
normally, or has been dropped.
15.To completely disconnect this apparatus from the AC mains, disconnect the power supply
cord plug from the AC receptacle.
16. WARNING: To reduce the risk of fire or electric-shock, do not expose this apparatus to rain
or moisture.
17.Do not expose this equipment to dripping or splashing and ensure that no objects filled
with liquids, such as vases, are placed on the equipment.
18.The mains plug of the power supply cord shall remain readily accessible.
Hazard warnings on the rear of the receiver
The label shown on the left is attached to the rear of the receiver. The symbols on this label
have the following meaning:
This symbol is intended to alert the user to the presence of uninsulated dangerous voltage
within the receiver’s enclosure that may be of sufficient magnitude to constitute risk of fire
or electric shock.
2
Important safety instructions
This symbol is intended to alert the user to the risk of electric shock if the receiver is opened.
There are no user serviceable parts inside. Refer servicing to qualified personnel only.
This symbol is intended to alert the user to the presence of important operating and maintenance instructions in the literature accompanying this receiver.
Overloading
Do not overload wall outlets and extension cables as this may result in fire and electric shock.
Replacement parts
When replacement parts are required, be sure the service technician uses replacement parts
specified by Sennheiser or those having the same characteristics as the original part.
Unauthorized substitutions may result in fire, electric shock, or other hazards.
Safety check
Upon completion of any service or repairs to this device, ask the service technician to perform
safety checks to determine that the device is in safe operating order.
Danger of hearing damage due to high volumes
This is a professional receiver. 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 receiver 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 hearing damage. 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.
Intended use
Intended use of the EM 2000 receiver includes:
• having read these instructions, especially the chapter “Important safety instructions”,
• using the device within the operating conditions and limitations described in this instruction manual.
“Improper use” means using the device other than as described in these instructions, or
under operating conditions which differ from those described herein.
3
The EM 2000 and EM 2050 rack-mount receivers
The EM 2000 and EM 2050 rack-mount receivers
This rack-mount receiver is part of the 2000 series. With this series, Sennheiser offers highquality state-of-the-art RF transmission systems with a high level of operational reliability
and ease of use. Transmitters and receivers permit wireless transmission with studio-quality
sound.
Features of the 2000 series:
• Optimized PLL synthesizer and microprocessor technology
• HDX noise reduction system
• Pilot tone squelch control
• True diversity technology
• Switching bandwidth of up to 75 MHz
• Safe configuration of a multi-channel system via a network
• Scan function (Easy Setup) for scanning the frequency banks for unused channels
Areas of application
The receiver can be combined with the following transmitters of the 2000 series:
TransmitterType
SK 2000Bodypack transmitter
SKM 2000Radio microphone
SKP 2000Plug-on transmitter
For more information, visit the EM 2000 product page on our website at
www.sennheiser.com.
The transmitters are available in the same UHF frequency ranges and are equipped with the
same frequency bank system with factory-preset frequencies. An advantage of the factorypreset frequencies is that
• a transmission system is ready for immediate use after switch-on,
• several transmission systems can be operated simultaneously on the preset frequencies
without causing intermodulation interference.
The frequency bank system
The receivers are available in 6 UHF frequency ranges with up to 3,000 receiving frequencies
per frequency range:
Range GBw:
606
– 678
Range Aw:
516 – 558
500600700800
Range Gw:
558 – 626
Range Bw:
626 – 698
Range Cw:
718 – 790
4
Range Dw:
790 – 865
Delivery includes
Each frequency range (Aw–Ew, Gw, GBw) offers 26 frequency banks with up to 64 channels
each:
Channel 1 – frequency preset
Channel 2 – frequency preset
Frequency bank 1 ... 20
Channel 64 – frequency preset
Channel 1 – freely selectable frequency
Channel 2 – freely selectable frequency
Frequency bank U1 ... U6
Channel 64 – freely selectable frequency
Each of the channels in the frequency banks “1” to “20” has been factory-preset to a fixed
receiving frequency (frequency preset). The factory-preset frequencies within one frequency
bank are intermodulation-free. These frequencies cannot be changed.
For an overview of the frequency presets, please refer to the supplied frequency information
sheet. Updated versions of the frequency information sheet can be downloaded from the
corresponding product page on our website at www.sennheiser.com.
The frequency banks “U1” to “U6” allow you to freely select and store receiving frequencies.
It might be that these receiving frequencies are not intermodulation-free.
Delivery includes
The packaging contains the following items:
1 EM 2000 rack-mount receiver
or
1 EM 2050 rack-mount twin receiver
3 mains cables (with EU, UK and US plug)
2 rod antennas
4 self-adhesive device feet
1 instruction manual
1 frequency information sheet
1 RF power information sheet
5
Product overview
A
B
A
B
EM 2050
EM 2000
A
B
Product overview
Overview of the EM 2000/EM 2050 receiver
The EM 2050 twin receiver has the same operating elements as the EM 2000 receiver. All information contained
in this instruction manual refers to both receivers.
쐇 쐋 쐏쐄쐂쐆 쐊
쐃쐇쐋 쐏쐄쐂쐆 쐊쐃
쐃 Rack mount “ear”
쐇 Headphone output,
쐋 Headphone volume control
쐏button, backlit
쐄 Infra-red interface
쐂 Display panel, backlit in orange
쐆 Jog dial
쐊 STANDBY button with operation
PEAK
**2000****2000**
B.Ch: 01.01
040
-10
30
-20
20
-30
10
-40
AF
RF
100 - 240V
50/60Hz 0.25A+18dBu MAXETHERNETRJ-45
MHz
806.125
SKM2000SKM2000
EQ:
MUTE
P
+ 12dB
TRANS-BAL
AF OUT B
BA
쐉쐈쐅쐎
씈
True Diversity Receiver EM 2050
TRUE DIVERSITY RECEIVER EM 2000
FREQ. RANGE-Xw:
X/X XXX-XXX MHz
IC: 2099A- XXXXXXX
ART. NO.: XXXXXX
DESIGNED IN AND MADE IN GERMANY
SER. NO.: XXXXXXXXXX
RF INRF INRF OUT
ANT IIANT I
DC OUT 11V/250mADC OUT 11V/250mA
씊씉
쐃쐇쐋 쐏쐄쐂쐆 쐊쐃
True Diversity Receiver EM 2000
TRUE DIVERSITY RECEIVER EM 2000
FREQ. RANGE-Xw:
X/X XXX-XXX MHz
ART. NO.:XXXXXX
TRANS-BAL
AF OUT B
100 - 240V
50/60Hz 0.25A+18dBu MAXETHERNETRJ-45
쐈쐅쐎
쐉
B
씈
IC: 2099A- XXXXXXX
DESIGNED IN AND MADE IN GERMANY
SER. NO.: XXXXXXXXXX
RF INRF INRF OUT
ANT IIANT I
DC OUT 11V/250mADC OUT 11V/250mA
씊씉
Operating elements – front panel Operating elements – rear panel
쐎 3-pin mains socket
쐅 Cable grip for power supply
¼” (6.3 mm) jack socket ( )
DC cable
쐈 Audio output (TRANS BAL AF OUT),
¼” (6.3 mm) jack socket,
transformer balanced
쐉 Audio output (TRANS BAL AF OUT),
XLR-3M socket, transformer
balanced
씈 LED (yellow) for network activity
indication (red backlighting),
serves as the ESC (cancel) key
in the operating menu
indication
씉 LAN socket (ETHERNET RJ 45)
씊 Type plate
PEAK
B.Ch: 01.01
040
-10
0682
0682
30
-20
20
-30
10
-40
AF
RF
CUS
GOST
PEAK
40
-10
30
-20
20
-30
10
-40
AF
RF
CUS
GOST
EQ:
P
R
B.Ch: 01.01
0
EQ:
P
R
806.125
+ 12dB
806.125
+ 12dB
MUTE
TRANS-BAL
AF OUT A
MUTE
MHz
+18dBu MAXETHERNET RJ-45
쐉쐈씎씍씌씋
씈씉
**2000**
MHz
SKM2000
씎씍씌씋
씋 Antenna input II (ANT II RF IN)
with booster supply voltage,
cannot be switched off,
short-circuit proof, BNC socket
Antenna input I is active
Antenna input II is active
RF signal level:
Field strength of the transmitted signal
Squelch threshold level
PEAK
-10
0
-20
-30
-40
AF
Modulation of the transmitter
with peak hold function
When the display shows full deflection,
the audio input level is excessively high.
When the transmitter is overmodulated
frequently or for extended periods of
time, the “PEAK” display is shown
inverted.
Overview of the displays
After switch-on, the receiver displays the standard display “Receiver Parameters”. For further
illustrations and examples of the different standard displays, please refer to page 15.
This standard display displays the operating states of the receiver and provides the most
important information on the received transmitter – provided the linked transmitter
supports this function.
햵
PEAK
B.Ch: 01.01
040
-10
30
20
10
RF
-20
-30
-40
AF
EQ:
+ 12dB
P
806.125
DisplayDeviceMeaning
햲 RF level “RF”
(Radio Frequency)
**2000**
MHz
SKM2000
MUTE
Receiver
햳 Audio level “AF”
(Audio Frequency,
see page 22)
햴 Frequency bank
and channel
(see page 21)
햵 Frequency
(see page 21)
햶 Name
(see page 21)
햷 Pilot tone “P”
(see page 24)
햸 Equalizer setting
(see page 22)
햹 Output gain
(see page 22)
Transmitter
ReceiverCurrent frequency bank and channel number
Current receiving frequency
Freely selectable name of the receiver
Activated pilot tone evaluation
Current equalizer setting
ReceiverCurrent output gain
7
Product overview
approx. 100%
approx. 70%
approx. 30%
battery icon is flashing;
charge status is critical
DisplayDeviceMeaning
햺 Muting function
“MUTE”
(see page 15)
햻 Transmitter typeTransmitterProduct name of the linked 2000 series
햽 Battery statusTransmitterCharge status:
햾 Lock mode icon
(see page 22)
Receiver/
transmitter
ReceiverLock mode is activated
Receiver is muted
Receiver does not output an audio signal
(see page 31).
transmitter
The product name is displayed only if the linked
transmitter supports this function.
When the battery charge status is critical, “Low
Battery” flashes in alternation with the standard
display.
8
Putting the receiver into operation
PEA
-1
40
30
20
10
-2
-3
-4
A
RF
쐃
Putting the receiver into operation
Preparing the receiver for use
Setting up the receiver on a flat surface
Fitting the device feet
Do not fit the device feet when mounting the receiver into a 19” rack.
왘 Clean the base of the receiver where you want to fix the device feet.
왘 Fit the device feet to the four corners of the receiver.
왘 Place the receiver on a flat, horizontal surface. Please note that the device feet can leave
stains on delicate surfaces.
왘 Connect the antennas (see page 9).
Mounting the receiver into a 19” rack
CAUTION!Risks when rack mounting the receiver!
When installing the device in a closed or multi-rack assembly, please consider that, during
operation, the ambient temperature, the mechanical loading and the electrical potentials will
be different from those of devices which are not mounted into a rack.
왘 Make sure that the ambient temperature within the rack does not exceed the permissible
temperature limit specified in the specifications.
왘 Ensure sufficient ventilation; if necessary, provide additional ventilation.
왘 Make sure that the mechanical loading of the rack is even.
왘 When connecting to the power supply, observe the information indicated on the type
plate. Avoid circuit overloading. If necessary, provide overcurrent protection.
왘 When rack mounting, please note that intrinsically harmless leakage currents of the indi-
vidual mains units may accumulate, thereby exceeding the allowable limit value. As a
remedy, ground the rack via an additional ground connection.
Slide the receiver into the 19” rack.
왘
왘 Secure the rack mount “ears” 쐃 to the rack using four screws (not included in the
delivery).
왘 Connect the antennas (see next chapter).
Connecting the antennas
You have the following options:
• You can connect the supplied rod antennas to the rear of the receiver (see next section).
• You can use the optional AM 2 antenna front mount kit (see page 10).
• For professional use, we recommend connecting remote antennas and, if necessary, using
Sennheiser antenna accessories (see page 11).
9
Putting the receiver into operation
쐃
쐃
씏
씏
Connecting the rod antennas to the rear of the receiver
왘
Connect the rod antennas 씏 (see diagram).
왘 Align the antennas in a V-shape.
씋
Mounting the antennas to the front of the rack
To mount the antenna connections to the front of the rack when rack mounting the receiver,
you require the AM 2 antenna front mount kit (optional accessory). The AM 2 consists of: