Page 1
PRODUCT SPECIFICATION
SpeechLine Digital Wireless
SL Rack Receiver DW
FEATURES
• Automatic frequency and interference management
• Speech optimized automatics and sound profiles
• Clear and easy focused user interface with OLED
display
• Ethernet connectivity (IPv4 and IPv6)
• Media control protocol integration
• Secure 256 bit AES encryption
• Remote controllable via Sennheiser Control Cockpit
• Quick setup pairing process
The half 19" stationary SL Rack Receiver DW is the easy-to-integrate core of the SpeechLine Digital Wireless System.
It features a clear visible OLED display for easy setup and operation. Thanks to the bi-directional communication all
settings of the mobile transmitters can be adjusted from the receiver side. The automatic frequency and interference
management allows convenient and reliable operation. Thanks to the easy-to-handle pairing process, the transmitter
and receiver are securely linked. Via network integration all settings and statuses are also accessible via AMX/Crestron media control protocol and the dedicated Sennheiser Control Cockpit software. The antennas can be either back or
front-mounted. Furthermore, extension cables for wall mounting are available.
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SPECIFICATIONS
AF frequency response 20 to 20,000 Hz
Dynamic range > 120 dB(A)
THD (1 kHz) typ. 0.1 %
Audio sampling 24 bit/48 kHz
Signal-to-noise ratio > 90 dB(A)
Encryption AES 256
RF frequency ranges EU:
USA:
Brazil:
Taiwan:
Japan:
Modulation GFSK with back channel
Transmission method TDMA, space diversity
Latency 19 ms
Relative air humidity max. 95 %
Temperature range* Operation:
Storage:
* The temperature range is influenced by the battery
characteristics
1,880 to 1,900 MHz
1,920 to 1,930 MHz
1,910 to 1,920 MHz
1,880 to 1,895 MHz
1,893 to 1,906 MHz
-10 °C to 55 °C
(14 °F to 131 °F)
-20 °C to 70 °C
(-4 °F to 158 °F)
RF sensitivity < -90 dBm
RF output power back
channel
XLR output level,
balanced
RCA output level,
unbalanced
Audio effects Low cut:
Display OLED
Network protocol Media Control Protocol,
Power supply 12 V DC
Current consumption 350 mA
AF connection sockets XLR/2 x RCA
Antenna sockets 2 x reverse SMA
Network sockets RJ-45
DC socket for power
supply
Weight approx. 828 g
adaptive, up to 250 mW
(country-specific)
max. +18 dBu
max. +6 dBu
-3 dB at 120 Hz
Equalizer:
Sound profiles:
TCP/IP IPv4 (DHCP, manual)/
IPv6
hollow jack
7-band graphic
equalizer with
sound presets
- female voice
- male voice
- instrument/
media
Page 2
DIMENSIONS
PRODUCT SPECIFICATION
SpeechLine Digital Wireless
SL Rack Receiver DW
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Page 3
PRODUCT SPECIFICATION
SpeechLine Digital Wireless
SL Rack Receiver DW
ARCHITECT‘S SPECIFICATION
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The stationary receiver shall be for use with a companion
transmitter as part of a wireless RF transmission system.
The receiver shall operate in the license-free 1.9 GHz
band (frequency ranges shall be from 1,880 to 1,930 MHz,
depending on country-specific regulations) and shall use
automatic frequency management to find and select the
best available frequency in the spectrum and to automatically start the transmission.
The receiver shall also incorporate automatic interference
management, allowing it to inaudibly and seamlessly change to another frequency if any interference is detected.
Time Division Multiple Access (TDMA) and space diversity
shall be used to provide for increased transmission reliability.
The receiver shall be menu-driven and shall have an OLED
display showing the name of the wireless link, selected
sound profile, de-esser and Automatic Gain Control (AGC)
settings, AF level, RF signal level, lock status, transmitter mute switch status, transmitter RF output power, and
transmitter battery status. The receiver shall be fitted with
a jog dial for menu navigation and shall feature dedicated
pairing, escape and power buttons.
The audio output shall utilize a balanced XLR-3M socket
with a maximum output of +18 dBu along with two unbalanced RCA sockets with a maximum output of +6 dBu.
The receiver shall feature automatic gain optimization. Two
reverse SMA sockets shall be provided for connecting the
antennas.
The receiver shall have an RJ-45 network socket and shall
support IPv4 and IPv6 network addressing. In addition, the
receiver shall support the Media Control Protocol to provide for remote control and status monitoring directly from a
software solution like the Sennheiser Control Cockpit or a
media control system (e.g. Crestron and AMX).
The receiver shall operate on 12 V DC power supplied from
the NT 12-4C power supply unit (100-240 V AC, 50/60 Hz,
for use in the USA, the UK, and Europe) or the NT 2-3
power supply unit (100-240 V AC, 50/60 Hz, for use in
countries other than the USA, the UK, and Europe). Power
consumption shall be 350 mA. The dimensions shall be
approximately 168 x 212 x 43 mm (6.61" x 8.35" x 1.69").
Weight shall be approximately 828 grams (1.83 lbs). Operating temperature shall range from -10 °C to +55 °C (+14 °F
to +131 °F).
The receiver shall be the Sennheiser SL Rack Receiver DW.
The receiver shall provide a low-cut filter, speech-optimized sound profiles and a 7-band graphic equalizer for
custom audio settings.
The receiver’s AF frequency response shall range from 20
– 20,000 Hz. The dynamic range shall be > 120 dB(A). Total
harmonic distortion (THD) at 1 kHz shall be typical 0.1 %.
Signal-to-noise ratio shall be > 90 dB(A). The receiver’s RF
sensitivity shall be -90 dBm. RF output power of the receiver’s back channel shall be adaptive and up to 250 mW
(country-specific).
Page 4
ACCESSORIES
PRODUCT SPECIFICATION
SpeechLine Digital Wireless
SL Rack Receiver DW
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GA 4 Rackmount set Art. No. 505977
AWM 2 Wallmount antenna Art. No. 505981
CL 5 Antenna cable 5 m Art. No. 505976
CL 10 Antenna cable 10 m Art. No. 506263
CL 20 Antenna cable 20 m Art. No. 506264
PRODUCT VARIANTS
SL Rack Receiver
DW-3-EU
Art. No. 505882 Art. No. 505892
-3 EU variant -3 UK variant
1,880 to 1,900 MHz 1,880 to 1,900 MHz
EU power supply UK power supply
Europe UK
India Hong Kong
Indonesia Singapore
SL Rack Receiver
DW-3-UK
Malaysia
AWM 4 Wallmount antenna Art. No. 507358
CL 1 PP Antenna cable 1 m Art. No. 507425
CL 5 PP Antenna cable 5 m Art. No. 507426
CL 10 PP Antenna cable 10 m Art. No. 507427
CL 20 PP Antenna cable 20 m Art. No. 507428
SL Rack Receiver
DW-3-AU
Art. No. 506164 Art. No. 506171
-3 AU variant -4 EU variant
1,880 to 1,900 MHz 1,920 to 1,930 MHz
AU power supply EU power supply
Australia Latin America
SL Rack Receiver
DW-4-EU
SL Rack Receiver
DW-4-US
Art. No. 505899 Art. No. 505919
-4 US variant -5 US variant
1,920 to 1,930 MHz 1,893 to 1,906 MHz
US power supply US power supply
USA Japan
Canada
SL Rack Receiver
DW-5-US
SL Rack Receiver
DW-6-US
Art. No. 505909 Art. No. 506703
-6 US variant -7 BR variant
1,880 to 1,895 MHz 1,910 to 1,920 MHz
US power supply BR power supply
Taiwan Brazil
SL Rack Receiver
DW-7-BR
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