Sennheiser Evolution Wireless EW-DX 835-S Handheld Set (R1-9 Frequency Range)

Professional wireless audio reaches new heights with the Sennheiser EW–DX system, a comprehensive 2–channel solution that includes dual SKM–S handheld transmitters with mute switches, MMD 835 cardioid dynamic capsules, an EM 2 rackmount receiver, and BA 70 rechargeable batteries. This digital UHF system represents decades of Sennheiser research, offering refined technologies that scale effortlessly across any venue size. The EW–DX simplifies complex workflows through intelligent automation, with equidistant channel spacing, auto scan functionality, and Bluetooth® Low Energy sync that coordinates frequencies at the push of a button.

Released in June 2021, Evolution Wireless Digital provides rock–solid connectivity for voice, lecture, conference, moderation, and live performance applications. The system removes wireless complexity through sophisticated tools that streamline setup and monitoring processes. Auto Scan automatically assigns channels using an equidistant tuning grid, allowing more channels to operate reliably without problematic intermodulation interference. Remote control capabilities include the Sennheiser Smart Assist app for mobile device management, plus advanced software options like Wireless Systems Manager and Sennheiser Control Cockpit for detailed system oversight in networked environments.

Built for growth and adaptability, Evolution Wireless Digital offers multiple hardware configurations including 2–channel half–rack and 4–channel full–rack receivers to match current requirements while maintaining expansion flexibility. Dante® network audio, Ethernet control ports, and AES–256 encryption enable secure IT network integration, allowing systems to adapt as operational needs change. Link Density Mode maximises channel density in dedicated spaces, while interchangeable components across the Evolution Wireless Digital line provide exceptional versatility.

Audio quality remains paramount with Sennheiser’s proprietary SePac audio codec and advanced conversion technology producing outstanding transparency from capsule input to system output. Digital UHF transmission features wide, class–leading dynamic range and ultra–low latency, while Intelligent Switching Diversity technology switches antennas between audio frames for stable transmission without audible artifacts. Additional professional features include in–device charging, 12–hour battery operation, and switching bandwidth up to 88 MHz.