Sennheiser has unveiled firmware version 1.2.13 for its EW‑DX wireless transmitter and receiver lineup, bringing advanced security, streamlined management, and refined audio performance to professional audio workflows.
Key Improvements in Firmware 1.2.13
802.1x Network Authentication
The update adds full support for the IEEE 802.1x protocol—commonly referred to as WPA‑2 Enterprise—ensuring that EW‑DX devices can be securely integrated into corporate and broadcast networks. This is essential for environments that handle sensitive or regulated data, providing industry‑standard encryption and authentication.
Wireless Systems Manager (WSM) Compatibility
EW‑DX units are now fully compatible with Sennheiser’s Wireless Systems Manager. WSM offers:
- Centralized monitoring and control of up to six receivers across multiple computers.
- Network‑based frequency coordination, eliminating the need for on‑site configuration.
- Integrated spectrum analysis, scene grouping, and in‑ear monitoring control.
- Automatic firmware deployment, keeping systems up‑to‑date with minimal effort.
WSM supports both macOS and Windows, making it ideal for live events, studio sessions, and broadcast operations.
AF Peak Warning Feature
To safeguard signal integrity, the firmware now includes AF peak warnings. Operators receive real‑time alerts when audio frequencies approach over‑modulation limits, allowing immediate adjustments to maintain optimal levels.
Bug Fixes
Additional minor corrections address:
- Synchronization of cable emulation settings between SK and SKM models.
- Correct functionality of the “Manual” IP mode post‑previous updates.
Applicable Products
All EW‑DX series components—including the EM 2 rack receiver, SKM/SKM‑S handheld transmitters, and SK bodypack units—receive the firmware update. Highlights include:
- EM 2: 146‑channel Standard Mode or 293‑channel Link Density Mode, IPv4/IPv6 Ethernet, AES‑256 encryption.
- SKM/SKM‑S: 10 mW RF power, up to 328 ft range, programmable mute and function buttons, 12‑hour Li‑Ion battery life.
- SK: 3.5 mm or 3‑pin connectivity, in‑device charging via CHG‑70N network charger.
Recommended Packages
- EW‑DX 835‑S SET (Handheld) – EM 2 receiver, 2× SKM‑S, 2× MMD 835 mic modules, 2× BA 70 batteries.
- EW‑DX MKE 2 SET (Lavalier) – EM 2 receiver, 2× SK bodypacks, 2× MKE 2 lavalier mics, 2× BA 70 batteries.
- EW‑DX MKE 2‑835‑S SET (Combo) – EM 2 receiver, 1× SK bodypack, 1× SKM‑S, 1× MKE 2 mic, 1× MMD 835 mic, 2× BA 70 batteries.
- EW‑DX SK‑SKM‑S BASE SET – EM 2 receiver, 1× SK bodypack, 1× SKM‑S, 2× BA 70 batteries.
How to Upgrade
Follow the step‑by‑step guide in the “Download” section of the product page at www.sennheiser.com/ew-dx. Firmware 1.2.13 requires the Wireless Systems Manager or Control Cockpit software. Once installed, WSM will handle all future updates.
- Control Cockpit: www.sennheiser.com/control-cockpit-software
- WSM: www.sennheiser.com/wsm
Conclusion
With firmware 1.2.13, Sennheiser reinforces its commitment to audio excellence and secure, efficient wireless solutions. The new security protocol, WSM integration, and performance safeguards ensure that your EW‑DX system remains reliable, compliant, and ready for the most demanding applications.
Rich Crescenti
Rich Crescenti is a freelance engineer, producer, teacher, and drummer operating across studios in NYC and California. He specializes in crafting distinctive recordings for bands and also performs drums with the Art‑Punk trio Bugs in the Dark.