Sennheiser EW-DX EM 2 Wireless Receiver

• 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)
• 144 dB input dynamic range - no need to set gain on wireless transmitters, 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
• Compatible with SoundBase software
• Network enabled for remote control with Sennheiser Control Cockpit, Wireless System Manager, and 3rd party media control systems via plug-in
• Power over Ethernet (PoE IEEE 802.3af Class 3)
• Ethernet connectivity (IPv4 and IPv6)
• AES-256 & Dante Media Encryption
• AutoScan-feature scans environment and deploys frequencies with equidistant channel spacing
• 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
• 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

Compatible with Sennheiser Evolution Wireless Digital series transmitters, including handheld, bodypack, and tablestand transmitters, as well as Sennheiser Control Cockpit and Wireless System Manager software.

• Instruction manual and frequently asked questions - Evolution Wireless Digital (EW-D | EW-DX | EW-DP)
• Bedienungsanleitung und häufig gestellte Fragen - Evolution Wireless Digital (EW-D | EW-DX | EW-DP)
• EW-DX Product Brochure Education Corporate EN
• EW-DX Sound Control Protocol 11 2023 EN
• How-To Guide - Control Cockpit Software and EW-DX Firmware
• EW-DX EM2 SKM SK Quick Guide 05 2026
• Configuration of 802.1x for EW-DX
• EW-DX Safety Instructions 08 2025
• EU Declaration of Conformity - EW-DX
• EW-DX Compliance Sheet 04 2026

What is the wireless audio latency of the EW-DX EM 2?

The receiver offers an ultra-low latency of 1.9 ms using the proprietary Sennheiser Performance Audio Codec (SePAC).

How many channels can be operated simultaneously?

It supports up to 146 channels in Standard Mode with 600 kHz spacing, or up to 293 channels in Link Density (LD) Mode with 300 kHz spacing.

Does the receiver support Power over Ethernet (PoE)?

Yes, it supports Power over Ethernet via PoE IEEE 802.3af Class 0 / Class 3 over CAT5e or higher cables.

Can the receiver be remotely controlled?

Yes, remote control and monitoring are supported via Ethernet using Sennheiser Control Cockpit, Wireless System Manager, or via Bluetooth Low Energy using the Smart Assist App at distances up to 25 meters.