Sennheiser EW-DX EM 2 Digital Half-Rack 2-Channel Receiver, R1-9 520-607.8 MHz

Sennheiser EW-DX simplifies your professional workflow by utilizing refined technologies to deliver a digital UHF system that can be scaled with ease. With its advanced feature set and hardware options, classrooms, corporate campuses, and live performance productions benefit from a network-ready system that is designed to integrate seamlessly. AutoScan quickly assesses your environment and uses equidistant channel spacing to deploy frequencies while tools like Sennheiser’s Control Cockpit, Wireless Systems Manager, and Smart Assist App allow you to monitor your system remotely.

Key Features

• Two-channel digital half rack (9.5”) in rugged metal housing
• Up to 88 MHz switching bandwidth
• Low latency of 1.9 ms wireless transmission thanks to proprietary Sennheiser Performance Audio Codec (SePAC)
• 134 dB input dynamic range - no need to set gain on your wireless transmitters at all, thanks to proprietary Sennheiser Performance Audio Codec (SePAC)
• Equidistant channel spacing to easily allocate intermodulation-free channels: Standard Mode with 600 kHz spacing for up to 146 channels; Link Density (LD) Mode with 300 kHz spacing for up to 293 channels
• Network enabled for expanded remote control with Sennheiser Control Cockpit, Wireless System Manager (WSM - Available in 2023) and 3rd party media control systems via plug-in
• Power over Ethernet (PoE IEEE 802.3af Class 3)
• Ethernet connectivity (IPv4 and IPv6)
• Secure transmission of confidential content using AES 256 encryption
• AutoScan-feature quickly scans your environment and deploys frequencies with equidistant channel spacing - even without RF knowledge
• Link Quality Indicator (LQI) showing the quality of the links separate to the RF levels
• Remote control via Smart Assist App over Bluetooth Low Energy (BLE) at distances up to 25 meters (Available in 2023)
• Clear and easy focused user interface with OLED display, jog wheel navigation and control buttons
• Selective headphone output with volume control on front panel
• Extended menu settings such as custom frequency list, selectable sync parameter and walk test
• External PSU 12V/1A
• Worldwide usage (specific frequencies subject to local RF regulations)

Technical Specifications

System
Audio link frequency ranges
Q1-9: 470.2 - 550 MHz
R1-9: 520 - 607.8 MHz
S1-10: 606.2 - 693.8 MHz
S2-10: 614.2 - 693.8 MHz
S4-10: 630 - 693.8 MHz
U1/5: 823.2 - 831.8 MHz & 863.2 - 864.8 MHz
V3-4: 925.2 - 937.3 MHz
V5-7: 941.700- 951.800 & 953.050 - 956.050 & 956.650-959.650 MHz
Y1-3: 1785.2 - 1799.8 MHz
Bluetooth Low Energy (BLE) frequency range
2405 - 2480 MHz
Audio frequency response
20 Hz - 20 kHz (-3 dB) @ 3 dBfs
THD, total harmonic distortion
-60 dB for 1 kHz @ -3 dBfs input level
Dynamic range
134 dB
System Latency
1.9 ms
RF technology
Intelligent Switching Diversity
Operating temperature
-10 Degrees C - +55 Degrees C (14 Degrees F - 131 Degrees F)
Operating relative humidity
5 - 95 % (non-condensing)
EW-DX EM 2 (Rack Receiver)
Input voltage range
11 - 13 V - or PoE IEEE 802.3af Class 0
Input Current
1A
Transmit power (radiated)
BLE: max. 10 mW EIRP
Audio output power
18 dBu max.
Ethernet
RJ-45 socket, IEEE802.3
100Base-TX (half+full duplex)
10Base-T (half+full duplex)
(CAT5e or higher)
Dimensions
212 x 44 x 189 mm
Weight
approx. 1000 g (without antennas and power supply)
What's in the Box
EW-DX EM 2
GA 3 rack mount kit
EW-D Power Supply with country adapters
2 rod antennas
4 rubber feet