Sennheiser EW-D CI1 Set (520 - 576 MHZ)

Evolution Wireless Digital: the natural evolution of the Evolution range

With Evolution Wireless Digital, Sennheiser modernizes the "plug and play" spirit that made the Evolution systems successful: quick handling, consistent live performance, and a modular solution capable of adapting to simple setups as well as more ambitious stages. The goal is clear: to offer a robust and accessible digital wireless system inspired by technologies long reserved for very high-end professional systems.

For singers, speakers, actors, content creators, and technicians

The EW-D ME4 Set is designed to capture a precise voice while limiting off-axis sounds. The cardioid lavalier microphone is particularly relevant for presentations, performances, places of worship, video recordings, and events where intelligibility is prioritized without increasing ambient noise levels. The mono-channel receiver facilitates integration in control rooms, racks, or fixed installations.

A digital wireless system designed for reliability and quick setup

Digital transmission helps eliminate typical analog wireless interference while preserving the nuances of a dynamic performance. The EW-D series emphasizes a high dynamic range (up to 134 dB on the transmitter side) to handle both spoken and projected voices, providing a natural and comfortable mixing experience.

Startup is accelerated by an automated configuration : the system quickly establishes a reliable connection and simplifies frequency management. The Smart Assist app (Bluetooth Low Energy) allows parameter control without navigating complex menus, convenient during soundchecks, rehearsals, or stage changes. Finally, the ecosystem is designed for scalability: wide frequency selection, the ability to multiply systems within the same band, and a bandwidth specified to accommodate dense configurations.

Technical specifications

Category	Complete system	Frequency band	R1-6 – 520 à 576 MHz
Number of channels	90	Color	Black

Type	all-in-one digital wireless lavalier set for voice	Number of frequencies	up to 2,240 frequencies
Included microphone	Sennheiser ME 4, electret, cardioid, condenser, lavalier microphone	Capacity per frequency range	up to 24 wireless systems
Transmitter	EW-D SK bodypack transmitter	Bandwidth	56 MHz
Receiver	EW-D EM, mono-channel, rack-mountable	Dynamic range (transmitters)	134 dB
Transmission	digital	Battery life	up to 12 hours with lithium-ion battery; up to 8 hours with AA batteries
Band	UHF	Indicated frequency band	R1-6 (520 - 576 MHz)
Control application	Sennheiser Smart Assist	Indicated frequency range	Q1-6 (470.2 - 526 MHz)
Connectivity	Bluetooth Low Energy	Included power supply	NT 12-5 CW+ power adapter with country adapters
Configuration	automated setup (auto-setup)	Included accessories	rack kit (rack mounting), set of AA batteries