BA 70Rechargeable battery pack for SK and SKM-SArt. no. 508860
L 70 USBCharger for BA 70 rechargeable battery packArt. no. 508861
EW-D CHARGING SETSet of L 70 USB charger and 2 BA 70 rechargeable battery packs Art. no. 508862
EW-D COLOR CODING SETColored labels for wireless link identification for EM, SKM-S, SKArt. no. 508989
EW-D SK COLOR CODINGColored labels for wireless link identification for SKArt. no. 508990
EW-D SKM COLOR CODINGColored labels for wireless link identification for SKM-SArt. no. 508991
EW-D EM COLOR CODINGColored labels for wireless link identification for EMArt. no. 508992
Page 3
PRODUCT SPECIFICATION (V1.0)
Evolution Wireless Digital
EW-DX 835-S SET | Handheld Set
MICROPHONE COMPATIBILITY
Microphone modules compatible with the EW-DX SKM-S handheld transmitter
MMD 835-1Dynamic microphone module with cardioid polar pattern
MMD 845-1Dynamic microphone module with supercardioid polar pattern
MME 865-1Pre-polarized condenser microphone module with supercardioid polar pattern
MMD 935-1Dynamic microphone module with cardioid polar pattern
MMD 945-1Dynamic microphone module with supercardioid polar pattern
MMK 965-1Condenser microphone module with switchable cardioid and supercardioid polar pattern
MMD 42-1Dynamic microphone module with omni-directional polar pattern
Neumann KK 204Condenser microphone module with cardioid polar pattern
Neumann KK 205Condenser microphone module with supercardioid polar pattern
MM 435Dynamic microphone module with cardioid polar pattern
MM 445Dynamic microphone module with supercardioid polar pattern
ME 9002Pre-polarized condenser microphone module with omni-directional polar pattern
ME 9004Pre-polarized condenser microphone module with cardioid polar pattern
ME 9005Pre-polarized condenser microphone module with supercardioid polar pattern
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Page 4
SPECIFICATIONS
PRODUCT SPECIFICATION (V1.0)
Evolution Wireless Digital
EW-DX 835-S SET | Handheld Set
4/7
System
Audio link
frequency ranges
Bluetooth® Low Energy
(BLE) frequency range
Audio frequency response20 Hz - 20 kHz (-3 dB)
Audio THD≤ -60 dB for 1 kHz
Dynamic range134 dB
System latency1.9 ms
Operating temperature-10 °C - +55 °C
Relative humidity5 - 95 % (non-condensing)
Q1-6
R1-6
R4-9
S1-7
S4-7
S7-10
U1/5
V3-4
Y1-3
2402 - 2480 MHz
@ 3 dBfs
@ -3 dBfs input level
(14 °F - 131 °F)
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 - 864.8 MHz
925.2 - 937.3 MHz
1785.2 - 1799.8 MHz
EW-DX SKM-S (Handheld Transmitter)
Input voltage2.0 - 4.35 V
Input current< 300 mA
Power supply2 AA batteries 1.5 V (al-
The stationary two-channel receiver with switching diversity technology shall be for use with up to two companion
transmitters as part of a digital wireless RF transmission
system.
The receiver shall operate within the following UHF frequency ranges, with a switching bandwidth of up to 88
MHz: 470.2 – 550 MHz, 520 – 607.8 MHz, 606.2 – 693.8
MHz, 614.2 – 693.8 MHz, 630 – 693.8 MHz, 823.2 – 831.8
MHz, 863.2 – 846.8 MHz, 925.2 – 937.3 MHz, 941.7 – 951.8
MHz, 953.05 – 956.05 MHz, 956.65 – 959.65 MHz, 1350.2
– 1398.8 MHz, 1435.2 – 1524.8 MHz, 1785.2 – 1799.8 MHz.
Different frequency variants shall be available depending
on country-specific regulations.
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 Android.
The receiver shall feature an automatic frequency setup
function with spectrum scan functionality in order to establish an equidistant frequency grid with 146 channels in
standard mode and 293 channels in Link Density Mode.
The audio frequency response shall be between 20 Hz and
20 kHz (-3 dB). Audio total harmonic distortion (THD) shall
be ≤ -60 dB for 1 kHz @ -3 dBfs input level. Dynamic range
shall be 134 dB. System latency shall be 1.9 ms.
The receiver shall be menu-driven with an OLED display
showing the current frequency, channel number, metering
of RF level, metering of AF level, lock status, muting function, antenna switching diversity, app connection, gain,
audio output level, menu and battery status for each of the
two associated transmitters. An auto-lock feature shall
be provided to prevent settings from being accidentally
altered.
The following settings shall be configurable by function
buttons and an encoder for each channel in the menu:
frequency, channel name, gain, trim, AF output, low cut,
AES 256 encryption, test tone, network settings, integrated
antenna booster settings, display brightness, device name,
auto setup settings for automatic frequency setup.
For each of the two channels the receiver shall feature a
balanced XLR-3M audio output with a maximum output
of +18 dBu along with an unbalanced 6.3 mm (¼“) audio
output with a maximum output of +12 dBu.
For secure transmission the receiver shall feature AES 256
encryption.
The receiver shall provide a walktest mode for monitoring
the RF and AF signal status in the location over time.
Two BNC-type input sockets shall be provided for connecting the antennas. The receiver shall be usable with active
and passive wide range UHF antennas for the entire supported RF spectrum.
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A headphone output with headphone volume control shall
be provided and shall utilize a 6.3 mm stereo jack socket.
The receiver shall have an Ethernet port (RJ-45) for remote
network-based monitoring and control using the Sennheiser Control Cockpit software or the Sennheiser Wireless
Systems Manager software.
The receiver shall operate on 12 V DC power supplied from
the power supply unit or on Power over Ethernet (PoE IEEE
802.af Class 0). Power consumption shall be ≤ 1 A.
The receiver shall have a rugged metal housing; dimensi-
ons shall be approximately 212 x 44 x 206 mm (8.35“ x 1.73“
x 8.11“). Weight shall be approximately 1000 grams (2.2 lbs)
without antennas and power supply. Operating temperature shall range from −10 °C to +50 °C (+14 °F to +122 °F).
The receiver shall be the Sennheiser EW-DX EM 2.
Page 7
PRODUCT SPECIFICATION (V1.0)
Evolution Wireless Digital
EW-DX 835-S SET | Handheld Set
EW-DX SKM-S handheld transmitter
The handheld transmitter shall be for use with a companion receiver as part of a digital wireless RF transmission
system.
The handheld transmitter shall operate within the following
UHF frequency ranges, with a switching bandwidth of up
to 88 MHz: 470.2 – 550 MHz, 520 – 607.8 MHz, 606.2 –
1350.2 – 1398.8 MHz, 1435.2 – 1524.8 MHz, 1785.2 – 1799.8
MHz. Different frequency variants shall be available depending on country-specific regulations.
The audio frequency response shall be between 20 Hz and
20 kHz (-3 dB). Audio total harmonic distortion (THD) shall
be ≤ -60 dB for 1 kHz @ -3 dBfs input level. Dynamic range
shall be 134 dB. System latency shall be 1.9 ms.
Occupied bandwidth shall be 200 kHz. Transmit power
(radiated) shall be 10 mW ERP (1785.2 – 1799.8 MHz Range:
12 mW ERP).
A programmable mute switch shall be provided for muting
or unmuting either the audio signal or the radio signal. The
mute switch can also be deactivated.
The handheld transmitter shall be menu-driven with a
backlit eInk display showing the relevant status information such as frequency, battery status or AES 256 encryption status.
All transmitter parameters shall be adjustable with function buttons on the device itself or by Bluetooth Low Energy
(BLE) synchronization via the associated receiver. The function buttons shall be lockable against accidental misuse.
Power shall be supplied to the handheld transmitter by two
1.5 V AA size batteries or by one Sennheiser BA 70 rechargeable battery pack. Operating time shall be typically
12 hours with a battery pack and up to 8 hours with AA
batteries.
The handheld transmitter shall feature charging contacts
for direct charging of the transmitter with inserted BA 70
battery pack in a Sennheiser CHG 70N network-enabled
charger.
The handheld transmitter shall utilize Sennheiser’s standard capsule interface serving Sennheiser microphone
modules of the evolution wireless and 2000 series and
Digital 6000 and 9000 as well as the Neumann KK 204 /
205 microphone modules.
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 including MMD 835 microphone module shall be approximately
304 grams (0.67 lbs). Operating temperature shall range
from −10 °C to +50 °C (+14 °F to +122 °F).
The handheld transmitter shall be the Sennheiser EW-DX
SKM-S.
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Sennheiser electronic GmbH & Co. KG · Am Labor 1 · 30900 Wedemark · Germany · www.sennheiser.com
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