Sennheiser EW-D SKM (520 - 576 MHZ)

A Natural Evolution in the "Evolution Wireless" Line, Inspired by Professional Digital Solutions

With Evolution Wireless Digital, Sennheiser brings the spirit of its "Evolution Wireless" range into a digital ecosystem designed for real-world conditions: stages, events, corporate performances, places of worship, multipurpose rooms, and mobile installations. The goal is clear: to make the benefits of digital wireless more accessible without sacrificing the stability expected on stage.

The series is based on principles previously reserved for higher-end Sennheiser systems, notably the use of a constant spacing frequency grid. Practically, you work with equidistant frequencies, which greatly simplifies RF preparation and reduces the need for complex coordination. The result: fewer technical constraints, more time to focus on what matters most - the performance.

For Whom and What: A Wireless System Tailored for Stage, Vocals, and Multi-Channel Setups

Evolution Wireless Digital is aimed at musicians, singers, speakers, hosts, technicians, and providers who want a wireless solution capable of handling the pace: stage changes, quick rehearsals, time constraints, and sometimes crowded radio environments.

Thanks to UHF transmission, the system targets better range and increased reliability while remaining relevant as the number of channels grows. Whether you're setting up a main + backup vocal set, multiple microphones for a panel, or an event configuration with numerous participants, the range is designed to stay clear and manageable, even as the setup expands.

Key Features: Simplicity, RF Reliability, and App-Based Control

The Comfort of Digital: A Clean Signal Without Artifacts

Digital wireless technology is designed to eliminate typical analog wireless issues: hiss, noise, interference, and disturbances. The benefit is immediate on vocals: precise diction and natural presence are maintained, even when the performance becomes dynamic.

The series boasts a 134 dB dynamic range for transmitters to preserve the details of the most expressive sources. This is an asset for singers with wide amplitude, speeches with level variations, or stages where you want to avoid entering compression too quickly.

UHF + Scalability: From Simple Duos to Large Setups

UHF transmission improves range, reliability, and scalability of the system. The announced bandwidth of 56 MHz allows up to 90 channels, while maintaining a smooth operational logic. The system offers up to 2,240 frequencies and can support 24 wireless systems per frequency band, a key point to standardize your inventory and anticipate future needs.

The constant spacing grid helps avoid classic RF coordination complications by replacing the need for advanced expertise. It also helps eliminate intermodulation issues and makes the overall deployment simpler, especially during live events.

"A Sound Engineer in Your Pocket": Smart Assist via Bluetooth Low Energy

Thanks to Bluetooth Low Energy, the Sennheiser Smart Assist app centralizes configuration, remote control, and system parameter access from an Android or iOS device. You gain responsiveness during soundchecks: quick adjustments, convenient control without navigating complex menus, and an automated setup procedure that speeds up commissioning.

On a daily basis, this approach reduces mental load on stage and in the control room: fewer manipulations, less hesitation, and more focus on the performance, the mix, and the audience experience.

Technical specifications

Category

Complete system

Lithium-ion battery	up to 12 hours of autonomy	Announced dynamic range	134 dB (transmitters)
With AA batteries	up to 8 hours of autonomy	Announced latency	practically nonexistent