Sennheiser EW-DX EM 2 Two-Channel Digital Rackmount Receiver

The Sennheiser 509343 is a wireless receiver that handles two audio channels with digital clarity, giving engineers a reliable backbone for microphone systems in conference rooms, lecture halls, and live stages.

It slides into half of a rack space, or rests on a tabletop when portability is more practical. The chassis is made of metal and built to withstand the knocks of daily use. An 88 MHz switching bandwidth lets you find clean frequencies even when the spectrum is crowded, so presenters and performers can move freely without worrying about dropouts.

When large channel counts are required, the Link Density mode makes it possible to operate up to 293 channels in one system. If security is a concern, AES-256 encryption protects every transmission from eavesdropping. The AutoScan function finds available frequencies on its own, reducing setup time for users who may not be RF experts.

Bluetooth 5.1 provides remote control through the Smart Assist app, while the built-in network port ties into Sennheiser Control Cockpit and Wireless Systems Manager for full system monitoring. Power over Ethernet keeps cabling simple, and the OLED screen gives a clear view of levels, battery life, and frequency settings at a glance.

Whether you are designing an expandable corporate system, outfitting a university auditorium, or running a touring rig that needs secure and stable wireless, this receiver delivers the flexibility and control that professionals expect.

• Supports two independent channels with digital audio quality
• 88 MHz switching bandwidth handles crowded RF environments
• Link Density mode allows operation of up to 293 channels
• AES-256 encryption secures confidential content
• Bluetooth 5.1 enables remote control through the Smart Assist app
• Power over Ethernet simplifies installation and cabling
• OLED screen offers clear status and menu navigation
• AutoScan assigns frequencies without RF expertise
• Works in a rack or on a tabletop to suit different setups
• Network port integrates with Control Cockpit and Wireless Systems Manager