2024年9月10日发(作者：南白山)
PRODUCT SPECIFICATION (V1.6)1/7
Evolution Wireless Digital
EW-D SKM-S BASE SET | Base Set
Versatile and feature-rich digital wireless system for those who sing, speak or play instruments that allows for seamless
product pairing and management via the EW-D Smart Assist App.
With a metal housing, the robust handheld transmitter suits perfectly for daily use on stage.
FEATURES
• Digital wireless eliminates noise, interference and
static bursts
• UHF transmission greatly enhances range, reliability
and scalability
• Mobile App streamlines setup and operation and elimi-
nates complicated menus
• Automated setup creates reliable connections with
minimal time and effort
• Up to 2,240 selectable frequencies
• Transmission range: up to 100 m in an ideal environ-
ment (without obstacles)
• Lithium Ion battery pack delivers up to 12 hours of ope-
ration (up to 8 hours of operation with AA batteries)
• 56 MHz Bandwidth will allow for up to 90 channels
• Preserves every detail of even the most dynamic per-
formances with 134 dB transmitter dynamic range
DELIVERY INCLUDES
• EW-D EM rack receiver
• EW-D SKM-S handheld transmitter
• MZQ 1 microphone clamp
• 2 rod antennas
• power supply with country adapters
• rackmount set
• 4 rubber feet
• quick guide
• safety guide
• manufacturer declaration sheet
PRODUCT SPECIFICATION (V1.6)2/7
Evolution Wireless Digital
EW-D SKM-S BASE SET | Base Set
PRODUCT VARIANTS
EW-D SKM-S BASE SET (Q1-6)
EW-D SKM-S BASE SET (R1-6)
EW-D SKM-S BASE SET (R4-9)
EW-D SKM-S BASE SET (S1-7)
EW-D SKM-S BASE SET (S4-7)
EW-D SKM-S BASE SET (S7-10)
EW-D SKM-S BASE SET (U1/5)
EW-D SKM-S BASE SET (V3-4)
EW-D SKM-S BASE SET (Y1-3)
ACCESSORIES
EW-D ASA (Q-R-S)
EW-D ASA (T-U-V-W)
EW-D ASA (X-Y)
EW-D ASA CN/ANZ (Q-R-S)
EW-D AB (Q)
EW-D AB (R)
EW-D AB (S)
EW-D AB (U)
EW-D AB (V)
EW-D AB (Y)
ADP UHF (470 - 1075 MHz)
BA 70
L 70 USB
EW-D CHARGING SET
EW-D COLOR CODING SET
EW-D SK COLOR CODING
EW-D SKM COLOR CODING
EW-D EM COLOR CODING
470.2 - 526 MHzArt. no. 508760
520 - 576 MHzArt. no. 508761
552 - 607.8 MHzArt. no. 508762
606.2 - 662 MHzArt. no. 508763
630 - 662 MHzArt. no. 508764
662 - 693.8 MHzArt. no. 508765
823.2 - 831.8 MHz &
863.2 - 864.8 MHz
Art. no. 508766
925.2 - 937.3 MHzArt. no. 508768
1785.2 - 1799.8 MHzArt. no. 508769
Active Antenna Splitter470 - 694 MHz
Active Antenna Splitter694 - 1075 MHz
Active Antenna Splitter1350 - 1805 MHz
Active Antenna Splitter470 - 694 MHz
Antenna Booster470 - 550 MHz
Antenna Booster520 - 608 MHz
Antenna Booster606 - 694 MHz
Antenna Booster823 - 865 MHz
Antenna Booster902 - 960 MHz
Antenna Booster1785 - 1805 MHz
Passive directional antenna470 - 1075 MHz
Rechargeable battery pack for SK and SKM-S
Charger for BA 70 rechargeable battery pack
Set of L 70 USB charger and 2 BA 70 rechargeable battery packs
Colored labels for wireless link identification for EM, SKM-S, SK
Colored labels for wireless link identification for SK
Colored labels for wireless link identification for SKM-S
Colored labels for wireless link identification for EM
Art. no. 508879
Art. no. 508880
Art. no. 508881
Art. no. 508998
Art. no. 508873
Art. no. 508874
Art. no. 508875
Art. no. 508876
Art. no. 508877
Art. no. 508878
Art. no. 508863
Art. no. 508860
Art. no. 508861
Art. no. 508862
Art. no. 508989
Art. no. 508990
Art. no. 508991
Art. no. 508992
PRODUCT SPECIFICATION (V1.6)3/7
Evolution Wireless Digital
EW-D SKM-S BASE SET | Base Set
MICROPHONE COMPATIBILITY
Microphone modules compatible with the EW-D SKM-S handheld transmitter
MMD 835-1
MMD 845-1
MME 865-1
MMD 935-1
MMD 945-1
MMK 965-1
MMD 42-1
Neumann KK 204
Neumann KK 205
MM 435
MM 445
ME 9002
ME 9004
ME 9005
Dynamic microphone module with cardioid polar pattern
Dynamic microphone module with supercardioid polar pattern
Pre-polarized condenser microphone module with supercardioid polar pattern
Dynamic microphone module with cardioid polar pattern
Dynamic microphone module with supercardioid polar pattern
Condenser microphone module with switchable cardioid and supercardioid polar pattern
Dynamic microphone module with omni-directional polar pattern
Condenser microphone module with cardioid polar pattern
Condenser microphone module with supercardioid polar pattern
Dynamic microphone module with cardioid polar pattern
Dynamic microphone module with supercardioid polar pattern
Pre-polarized condenser microphone module with omni-directional polar pattern
Pre-polarized condenser microphone module with cardioid polar pattern
Pre-polarized condenser microphone module with supercardioid polar pattern
PRODUCT SPECIFICATION (V1.6)4/7
Evolution Wireless Digital
EW-D SKM-S BASE SET | Base Set
SPECIFICATIONS
System
Audio link
frequency ranges
Q1-6
R1-6
470.2 - 526 MHz
R4-9
520 - 576 MHz
S1-7
552 - 607.8 MHz
S4-7
606.2 - 662 MHz
S7-10
630 - 662 MHz
U1/5
662 - 693.8 MHz
823.2 - 831.8 MHz &
V3-4
863.2 - 864.8 MHz
Y1-3
925.2 - 937.3 MHz
1785.2 - 1799.8 MHz
Bluetooth®
(BLE) frequency range
Low Energy
2402 - 2480 MHz
Audio frequency response20 Hz - 20 kHz (-3 dB)
@ 3 dBfs
Audio THD≤ -60 dB for 1 kHz
@ -3 dBfs input level
Operating temperature-10 °C - +55 °C
(14 °F - 131 °F)
Relative humidity5 - 95 % (non-condensing)
EW-D EM (Rack Receiver)
Input voltage11 - 13 V ⎓
Input current≤ 300 mA
Transmit power (radiated)BLE: max. 10 mW EIRP
Audio output power18 dBu max.
Dimensions212 x 44 x 189 mm
(8.35" x 1.73" x 7.44")
Weight (without antennas
and power supply)
approx. 1000 g (2.2 lbs)
Set in packaging
Dimensions405 x 350 x 73 mm
(15.91" x 13.78" x 2.87")
Weight2.9 kg (6.39 lbs)
EW-D SKM-S (Handheld Transmitter)
Input voltage2.0 - 4.35 V
Input current< 300 mA
Power supply2 AA batteries 1.5 V (al-
kali manganese) or BA 70
rechargeable battery pack
Occupied bandwidth200 kHz
Transmit power (radiated)Audio link: 10 mW ERP
(Range Y1-3: 12 mW ERP)
BLE: max. 10 mW EIRP
Dimensions (ø x l)
(incl. MMD
module)
835 microphone 50 x 268 mm (1.97" x 10.55")
(without microphone
module)
40 x 200 mm (1.57" x 7.87")
Weight (without batteries)
(incl. MMD
module)
835 microphone approx. 304 g (0.67 lbs)
(without microphone
module)
approx. 195 g (7.14 lbs)
PRODUCT SPECIFICATION (V1.6)5/7
Evolution Wireless Digital
EW-D SKM-S BASE SET | Base Set
DIMENSIONS
EW-D EM
53
2.09"
39.75
1.56"
SET ESC
4
4
.
2
1
.
7
4
"
4
2
1
.
6
5
"
SYNC
2
3
.
2
0
.
9
1
"
66.25
2.61"
212.1
8.35"
92.75
3.65"
1
4
0
.
5
5
"
1
3
.
4
0
.
5
3
"
Zugentlastung
Cable Grip
90.9
3.58"
XLR-3 Steckverbinder
XLR-3 Connector
42.5
1.67"
24
0.94"
92.5
3.64"
X
3
1
.
2
1
.
2
3
"
2
2
.
7
5
0
.
9
"
1
5
.
7
5
0
.
6
2
"
1
3
.
7
5
0
.
5
4
"
63.5
2.5"
86.5
3.41"
BNC-Jack, 50 Ohm
6.3mm Klinkenbuchse
6.3mm Phone-Jack
DC-Power-Jack
X
168
6.61"
1
7
.
2
5
0
.
6
8
"
2
0
.
7
0
.
8
1
"
PRODUCT SPECIFICATION (V1.6)6/7
Evolution Wireless Digital
EW-D SKM-S BASE SET | Base Set
DIMENSIONS
EW-D SKM-S
Mikrofonmodul MMD835 - nur Beispiel
microphone module MMD835 - example only
50.5
1.99
5
.
6
6
1
5
.
1
6
7
.
0
9
0
.
2
7
40.3
1.59
5
.
7
8
5
6
.
2
0
1
34
1.34
PRODUCT SPECIFICATION (V1.6)7/7
Evolution Wireless Digital
EW-D SKM-S BASE SET | Base Set
ARCHITECT‘S SPECIFICATION
EW-D EM rack receiver
The stationary receiver with switching diversity technology
shall be for use with a companion transmitter as part of a
digital wireless RF transmission system.
The receiver shall operate within ten UHF frequency
ranges, with a switching bandwidth of up to 56 MHz:
470.2 – 526 MHz, 520 – 576 MHz, 552 – 607.8 MHz, 606.2
– 662 MHz, 630 – 662 MHz, 662 – 693.8 MHz, 823.2 –
831.8 MHz, 863.2 – 846.8 MHz, 925.2 – 937.3 MHz, 1785.2 –
1799.8 MHz; selectable frequencies shall be up to 2,240.
The receiver shall feature Bluetooth
® Low Energy (BLE) at
a frequency range between 2402 and 2480 MHz for remote
controlling the devices via a control App for iOS and And-
roid.
The audio frequency response shall be between 20 Hz and
20 kHz (-3 dB) @ 3 dBfs. Audio total harmonic distortion
(THD) shall be ≤ -60 dB for 1 kHz @ -3 dBfs input level.
Dynamic range shall be 134 dB.
The receiver shall be menu-driven with a backlit LC display
showing the current frequency, channel number, mete-
ring of RF level, metering of AF level, lock status, muting
function, mute lock status, antenna switching diversity,
app connection, gain, audio output level, menu and battery
status of the associated transmitter. An auto-lock feature
shall be provided to prevent settings from being acciden-
tally altered.
The receiver shall feature a balanced XLR-3M audio output
with a maximum output of +18 dBu along with an unbalan-
ced ¼“ (6.3 mm) audio output with a maximum output of
+12 dBu. Two BNC-type input sockets shall be provided for
connecting the antennas.
The receiver shall operate on 12 V power supplied from
the power supply unit or from a Sennheiser EW-D ASA an-
tenna splitter. Power consumption shall be ≤ 300 mA. The
receiver shall have a rugged metal housing; dimensions
shall be approximately 212 x 44 x 189 mm (8.35“ x 1.73“ x
7.44“). Weight shall be approximately 1000 grams (2.2 lbs)
without antennas and power supply. Operating tempera-
ture shall range from −10 °C to +55 °C (+14 °F to +131 °F).
The receiver shall be the Sennheiser EW-D EM.
EW-D SKM-S handheld transmitter
The handheld transmitter shall be for use with a compa-
nion receiver as part of a digital wireless RF transmission
system.
The handheld transmitter shall operate within ten
UHF frequency ranges, with a switching bandwidth of
up to 56 MHz: 470.2 – 526 MHz, 520 – 576 MHz, 552
– 607.8 MHz, 606.2 – 662 MHz, 630 – 662 MHz, 662 –
693.8 MHz, 823.2 – 831.8 MHz, 863.2 – 846.8 MHz, 925.2
– 937.3 MHz, 1785.2 – 1799.8 MHz; selectable frequencies
shall be up to 2,240.
The audio frequency response shall be between 20 Hz and
20 kHz (-3 dB) @ 3 dBfs. Audio total harmonic distortion
(THD) shall be ≤ -60 dB for 1 kHz @ -3 dBfs input level.
Dynamic range shall be 134 dB.
A programmable mute switch shall be provided to mute or
unmute the audio signal.
The handheld transmitter’s parameters shall be configu-
rable in the associated receiver’s menu and synchronized
with the handheld transmitter via Bluetooth Low Energy
(BLE).
Power shall be supplied to the handheld transmitter by two
1.5 V AA size batteries or by one Sennheiser BA 70 rechar-
geable battery pack. Operating time shall be typically
12 hours with a battery pack and up to 8 hours with AA
batteries.
Occupied bandwidth shall be 200 kHz. Transmit power
(radiated) shall be 10 mW ERP (1785.2 – 1799.8 MHz Range:
12 mW ERP).
The handheld transmitter shall have a rugged metal
housing; dimensions shall be approximately 50 mm (1.97“)
in diameter and 268 mm (10.55“) in length including a
Sennheiser MMD 835 microphone module. Weight inclu-
ding MMD 835 microphone module shall be approximately
304 grams (0.67 lbs). Operating temperature shall range
from −10 °C to +55 °C (+14 °F to +131 °F).
A range of different microphone heads shall be available
for the handheld transmitter.
The handheld transmitter shall be the Sennheiser EW-D
SKM-S.
Sennheiser electronic GmbH & Co. KG · Am Labor 1 · 30900 Wedemark · Germany ·
2024年9月10日发(作者：南白山)
PRODUCT SPECIFICATION (V1.6)1/7
Evolution Wireless Digital
EW-D SKM-S BASE SET | Base Set
Versatile and feature-rich digital wireless system for those who sing, speak or play instruments that allows for seamless
product pairing and management via the EW-D Smart Assist App.
With a metal housing, the robust handheld transmitter suits perfectly for daily use on stage.
FEATURES
• Digital wireless eliminates noise, interference and
static bursts
• UHF transmission greatly enhances range, reliability
and scalability
• Mobile App streamlines setup and operation and elimi-
nates complicated menus
• Automated setup creates reliable connections with
minimal time and effort
• Up to 2,240 selectable frequencies
• Transmission range: up to 100 m in an ideal environ-
ment (without obstacles)
• Lithium Ion battery pack delivers up to 12 hours of ope-
ration (up to 8 hours of operation with AA batteries)
• 56 MHz Bandwidth will allow for up to 90 channels
• Preserves every detail of even the most dynamic per-
formances with 134 dB transmitter dynamic range
DELIVERY INCLUDES
• EW-D EM rack receiver
• EW-D SKM-S handheld transmitter
• MZQ 1 microphone clamp
• 2 rod antennas
• power supply with country adapters
• rackmount set
• 4 rubber feet
• quick guide
• safety guide
• manufacturer declaration sheet
PRODUCT SPECIFICATION (V1.6)2/7
Evolution Wireless Digital
EW-D SKM-S BASE SET | Base Set
PRODUCT VARIANTS
EW-D SKM-S BASE SET (Q1-6)
EW-D SKM-S BASE SET (R1-6)
EW-D SKM-S BASE SET (R4-9)
EW-D SKM-S BASE SET (S1-7)
EW-D SKM-S BASE SET (S4-7)
EW-D SKM-S BASE SET (S7-10)
EW-D SKM-S BASE SET (U1/5)
EW-D SKM-S BASE SET (V3-4)
EW-D SKM-S BASE SET (Y1-3)
ACCESSORIES
EW-D ASA (Q-R-S)
EW-D ASA (T-U-V-W)
EW-D ASA (X-Y)
EW-D ASA CN/ANZ (Q-R-S)
EW-D AB (Q)
EW-D AB (R)
EW-D AB (S)
EW-D AB (U)
EW-D AB (V)
EW-D AB (Y)
ADP UHF (470 - 1075 MHz)
BA 70
L 70 USB
EW-D CHARGING SET
EW-D COLOR CODING SET
EW-D SK COLOR CODING
EW-D SKM COLOR CODING
EW-D EM COLOR CODING
470.2 - 526 MHzArt. no. 508760
520 - 576 MHzArt. no. 508761
552 - 607.8 MHzArt. no. 508762
606.2 - 662 MHzArt. no. 508763
630 - 662 MHzArt. no. 508764
662 - 693.8 MHzArt. no. 508765
823.2 - 831.8 MHz &
863.2 - 864.8 MHz
Art. no. 508766
925.2 - 937.3 MHzArt. no. 508768
1785.2 - 1799.8 MHzArt. no. 508769
Active Antenna Splitter470 - 694 MHz
Active Antenna Splitter694 - 1075 MHz
Active Antenna Splitter1350 - 1805 MHz
Active Antenna Splitter470 - 694 MHz
Antenna Booster470 - 550 MHz
Antenna Booster520 - 608 MHz
Antenna Booster606 - 694 MHz
Antenna Booster823 - 865 MHz
Antenna Booster902 - 960 MHz
Antenna Booster1785 - 1805 MHz
Passive directional antenna470 - 1075 MHz
Rechargeable battery pack for SK and SKM-S
Charger for BA 70 rechargeable battery pack
Set of L 70 USB charger and 2 BA 70 rechargeable battery packs
Colored labels for wireless link identification for EM, SKM-S, SK
Colored labels for wireless link identification for SK
Colored labels for wireless link identification for SKM-S
Colored labels for wireless link identification for EM
Art. no. 508879
Art. no. 508880
Art. no. 508881
Art. no. 508998
Art. no. 508873
Art. no. 508874
Art. no. 508875
Art. no. 508876
Art. no. 508877
Art. no. 508878
Art. no. 508863
Art. no. 508860
Art. no. 508861
Art. no. 508862
Art. no. 508989
Art. no. 508990
Art. no. 508991
Art. no. 508992
PRODUCT SPECIFICATION (V1.6)3/7
Evolution Wireless Digital
EW-D SKM-S BASE SET | Base Set
MICROPHONE COMPATIBILITY
Microphone modules compatible with the EW-D SKM-S handheld transmitter
MMD 835-1
MMD 845-1
MME 865-1
MMD 935-1
MMD 945-1
MMK 965-1
MMD 42-1
Neumann KK 204
Neumann KK 205
MM 435
MM 445
ME 9002
ME 9004
ME 9005
Dynamic microphone module with cardioid polar pattern
Dynamic microphone module with supercardioid polar pattern
Pre-polarized condenser microphone module with supercardioid polar pattern
Dynamic microphone module with cardioid polar pattern
Dynamic microphone module with supercardioid polar pattern
Condenser microphone module with switchable cardioid and supercardioid polar pattern
Dynamic microphone module with omni-directional polar pattern
Condenser microphone module with cardioid polar pattern
Condenser microphone module with supercardioid polar pattern
Dynamic microphone module with cardioid polar pattern
Dynamic microphone module with supercardioid polar pattern
Pre-polarized condenser microphone module with omni-directional polar pattern
Pre-polarized condenser microphone module with cardioid polar pattern
Pre-polarized condenser microphone module with supercardioid polar pattern
PRODUCT SPECIFICATION (V1.6)4/7
Evolution Wireless Digital
EW-D SKM-S BASE SET | Base Set
SPECIFICATIONS
System
Audio link
frequency ranges
Q1-6
R1-6
470.2 - 526 MHz
R4-9
520 - 576 MHz
S1-7
552 - 607.8 MHz
S4-7
606.2 - 662 MHz
S7-10
630 - 662 MHz
U1/5
662 - 693.8 MHz
823.2 - 831.8 MHz &
V3-4
863.2 - 864.8 MHz
Y1-3
925.2 - 937.3 MHz
1785.2 - 1799.8 MHz
Bluetooth®
(BLE) frequency range
Low Energy
2402 - 2480 MHz
Audio frequency response20 Hz - 20 kHz (-3 dB)
@ 3 dBfs
Audio THD≤ -60 dB for 1 kHz
@ -3 dBfs input level
Operating temperature-10 °C - +55 °C
(14 °F - 131 °F)
Relative humidity5 - 95 % (non-condensing)
EW-D EM (Rack Receiver)
Input voltage11 - 13 V ⎓
Input current≤ 300 mA
Transmit power (radiated)BLE: max. 10 mW EIRP
Audio output power18 dBu max.
Dimensions212 x 44 x 189 mm
(8.35" x 1.73" x 7.44")
Weight (without antennas
and power supply)
approx. 1000 g (2.2 lbs)
Set in packaging
Dimensions405 x 350 x 73 mm
(15.91" x 13.78" x 2.87")
Weight2.9 kg (6.39 lbs)
EW-D SKM-S (Handheld Transmitter)
Input voltage2.0 - 4.35 V
Input current< 300 mA
Power supply2 AA batteries 1.5 V (al-
kali manganese) or BA 70
rechargeable battery pack
Occupied bandwidth200 kHz
Transmit power (radiated)Audio link: 10 mW ERP
(Range Y1-3: 12 mW ERP)
BLE: max. 10 mW EIRP
Dimensions (ø x l)
(incl. MMD
module)
835 microphone 50 x 268 mm (1.97" x 10.55")
(without microphone
module)
40 x 200 mm (1.57" x 7.87")
Weight (without batteries)
(incl. MMD
module)
835 microphone approx. 304 g (0.67 lbs)
(without microphone
module)
approx. 195 g (7.14 lbs)
PRODUCT SPECIFICATION (V1.6)5/7
Evolution Wireless Digital
EW-D SKM-S BASE SET | Base Set
DIMENSIONS
EW-D EM
53
2.09"
39.75
1.56"
SET ESC
4
4
.
2
1
.
7
4
"
4
2
1
.
6
5
"
SYNC
2
3
.
2
0
.
9
1
"
66.25
2.61"
212.1
8.35"
92.75
3.65"
1
4
0
.
5
5
"
1
3
.
4
0
.
5
3
"
Zugentlastung
Cable Grip
90.9
3.58"
XLR-3 Steckverbinder
XLR-3 Connector
42.5
1.67"
24
0.94"
92.5
3.64"
X
3
1
.
2
1
.
2
3
"
2
2
.
7
5
0
.
9
"
1
5
.
7
5
0
.
6
2
"
1
3
.
7
5
0
.
5
4
"
63.5
2.5"
86.5
3.41"
BNC-Jack, 50 Ohm
6.3mm Klinkenbuchse
6.3mm Phone-Jack
DC-Power-Jack
X
168
6.61"
1
7
.
2
5
0
.
6
8
"
2
0
.
7
0
.
8
1
"
PRODUCT SPECIFICATION (V1.6)6/7
Evolution Wireless Digital
EW-D SKM-S BASE SET | Base Set
DIMENSIONS
EW-D SKM-S
Mikrofonmodul MMD835 - nur Beispiel
microphone module MMD835 - example only
50.5
1.99
5
.
6
6
1
5
.
1
6
7
.
0
9
0
.
2
7
40.3
1.59
5
.
7
8
5
6
.
2
0
1
34
1.34
PRODUCT SPECIFICATION (V1.6)7/7
Evolution Wireless Digital
EW-D SKM-S BASE SET | Base Set
ARCHITECT‘S SPECIFICATION
EW-D EM rack receiver
The stationary receiver with switching diversity technology
shall be for use with a companion transmitter as part of a
digital wireless RF transmission system.
The receiver shall operate within ten UHF frequency
ranges, with a switching bandwidth of up to 56 MHz:
470.2 – 526 MHz, 520 – 576 MHz, 552 – 607.8 MHz, 606.2
– 662 MHz, 630 – 662 MHz, 662 – 693.8 MHz, 823.2 –
831.8 MHz, 863.2 – 846.8 MHz, 925.2 – 937.3 MHz, 1785.2 –
1799.8 MHz; selectable frequencies shall be up to 2,240.
The receiver shall feature Bluetooth
® Low Energy (BLE) at
a frequency range between 2402 and 2480 MHz for remote
controlling the devices via a control App for iOS and And-
roid.
The audio frequency response shall be between 20 Hz and
20 kHz (-3 dB) @ 3 dBfs. Audio total harmonic distortion
(THD) shall be ≤ -60 dB for 1 kHz @ -3 dBfs input level.
Dynamic range shall be 134 dB.
The receiver shall be menu-driven with a backlit LC display
showing the current frequency, channel number, mete-
ring of RF level, metering of AF level, lock status, muting
function, mute lock status, antenna switching diversity,
app connection, gain, audio output level, menu and battery
status of the associated transmitter. An auto-lock feature
shall be provided to prevent settings from being acciden-
tally altered.
The receiver shall feature a balanced XLR-3M audio output
with a maximum output of +18 dBu along with an unbalan-
ced ¼“ (6.3 mm) audio output with a maximum output of
+12 dBu. Two BNC-type input sockets shall be provided for
connecting the antennas.
The receiver shall operate on 12 V power supplied from
the power supply unit or from a Sennheiser EW-D ASA an-
tenna splitter. Power consumption shall be ≤ 300 mA. The
receiver shall have a rugged metal housing; dimensions
shall be approximately 212 x 44 x 189 mm (8.35“ x 1.73“ x
7.44“). Weight shall be approximately 1000 grams (2.2 lbs)
without antennas and power supply. Operating tempera-
ture shall range from −10 °C to +55 °C (+14 °F to +131 °F).
The receiver shall be the Sennheiser EW-D EM.
EW-D SKM-S handheld transmitter
The handheld transmitter shall be for use with a compa-
nion receiver as part of a digital wireless RF transmission
system.
The handheld transmitter shall operate within ten
UHF frequency ranges, with a switching bandwidth of
up to 56 MHz: 470.2 – 526 MHz, 520 – 576 MHz, 552
– 607.8 MHz, 606.2 – 662 MHz, 630 – 662 MHz, 662 –
693.8 MHz, 823.2 – 831.8 MHz, 863.2 – 846.8 MHz, 925.2
– 937.3 MHz, 1785.2 – 1799.8 MHz; selectable frequencies
shall be up to 2,240.
The audio frequency response shall be between 20 Hz and
20 kHz (-3 dB) @ 3 dBfs. Audio total harmonic distortion
(THD) shall be ≤ -60 dB for 1 kHz @ -3 dBfs input level.
Dynamic range shall be 134 dB.
A programmable mute switch shall be provided to mute or
unmute the audio signal.
The handheld transmitter’s parameters shall be configu-
rable in the associated receiver’s menu and synchronized
with the handheld transmitter via Bluetooth Low Energy
(BLE).
Power shall be supplied to the handheld transmitter by two
1.5 V AA size batteries or by one Sennheiser BA 70 rechar-
geable battery pack. Operating time shall be typically
12 hours with a battery pack and up to 8 hours with AA
batteries.
Occupied bandwidth shall be 200 kHz. Transmit power
(radiated) shall be 10 mW ERP (1785.2 – 1799.8 MHz Range:
12 mW ERP).
The handheld transmitter shall have a rugged metal
housing; dimensions shall be approximately 50 mm (1.97“)
in diameter and 268 mm (10.55“) in length including a
Sennheiser MMD 835 microphone module. Weight inclu-
ding MMD 835 microphone module shall be approximately
304 grams (0.67 lbs). Operating temperature shall range
from −10 °C to +55 °C (+14 °F to +131 °F).
A range of different microphone heads shall be available
for the handheld transmitter.
The handheld transmitter shall be the Sennheiser EW-D
SKM-S.
Sennheiser electronic GmbH & Co. KG · Am Labor 1 · 30900 Wedemark · Germany ·