Sennheiser EW-D SKM (606,2 - 662 MHZ)

Evolution Wireless Digital: Sennheiser's DNA, Now in Modular Digital Form

With Evolution Wireless Digital (EW-D), Sennheiser brings the spirit of its Evolution family into a decidedly modern approach: a digital wireless system designed to be both accessible, quick to deploy, and robust enough to support demanding performances. The key idea of the range is its modularity: you build your set according to your needs (here, a handheld transmitter without capsule ), while benefiting from management tools and a radio architecture aimed at simplifying daily use. Certain adjustment logics, previously associated with very high-end solutions, are now included to reduce coordination constraints and make the system more immediate to operate.

A System Tailored for Stage, Events, and Fixed Installations

The EW-D SKM-S BASE SET is aimed at singers, hosts, speakers, technicians, and providers who want a reliable digital handheld system with clean sound and practical management in real conditions. The fact that the capsule is sold separately is a real advantage if you want to achieve a precise tone (spoken voice, singing, more or less pronounced dynamics) or harmonize your inventory with different microphone capsules. The rack-mountable single-channel receiver naturally integrates into flight cases or racks, while the handheld transmitter features a mute button to maintain control during use.

Key Features: Easy Setup, Scalability, and Mobile Control

Digital UHF Transmission: Signal Stability and Cleanliness

The EW-D philosophy is clear: leverage digital wireless to reduce unwanted artifacts (noise and interference) while maintaining a smooth stage experience. The UHF transmission enhances range, reliability, and system scalability, making it a solid solution both for a main microphone and for multi-system setups. The system is designed to preserve performance in dynamic performances, notably thanks to a dynamic range of 134 dB for the transmitters.

Constant Interval Frequency Grid: Less Complexity, More Opportunities

EW-D relies on a constant interval tuning grid allowing the use of equidistant frequencies to reduce the usual coordination constraints. The goal is to facilitate the deployment of multiple links while limiting intermodulation issues and speeding up decisions on site. Practically, you have a 56 MHz bandwidth supporting up to 90 channels, and a capacity of 2,240 selectable frequencies, with up to 24 wireless systems per frequency band.

Smart Assist and Bluetooth Low Energy: "The Sound Engineer in Your Pocket"

To save time during soundcheck and operation, Sennheiser relies on Bluetooth Low Energy and control via the Smart Assist app: automated configuration, remote control, and mobile access to settings. The result: fewer menus, more clarity, and practical management when you're alone during setup or working with quick changes during a show.

Battery Life: AA Batteries Included, Lithium-Ion Option

The set comes with a set of AA batteries and can reach up to 8 hours of runtime with AA batteries. The system is also designed to operate with a lithium-ion battery, allowing up to 12 hours depending on configuration, which is especially suitable for long event days.

Technical specifications

Category

Complete system

Frequency Band	S1-7	Capacity per Frequency Band	up to 24 wireless systems
Range	606.2 - 662 MHz	Frequency Grid	constant interval tuning
Transmitter	EW-D SKM-S (handheld transmitter with mute button)	Transmission	UHF
Capsule / Microphone Head	not included (microphone module sold separately, compatible with a wide range of Evolution Wireless Digital capsules)	Transmitter Dynamic Range	134 dB
Receiver	EW-D EM (rack-mountable single-channel fixed receiver)	Control	Sennheiser Smart Assist app via Bluetooth Low Energy
Technology	digital wireless	Functions	automated configuration, remote control, mobile access to settings
Bandwidth	56 MHz	Battery Life with Lithium-Ion Battery	up to 12 hours
Possible Number of Channels	up to 90 channels	Battery Life with AA Batteries	up to 8 hours
Selectable Frequencies	up to 2,240	Power Supply	NT 12-5 CW+ power adapter with country-specific plugs