The Sennheiser EW-D SK (R4-9) is a versatile and feature-rich digital bodypack transmitter designed for vocalists, speakers, and instrumentalists. It offers seamless integration with the EW-D Smart Assist App for effortless pairing and system management, while being fully compatible with a wide range of Sennheiser headset and clip-on/lavalier microphones.

Digital Transmission and Reliability

Operating in the UHF spectrum, the EW-D SK ensures extended range, outstanding reliability, and scalability. Its digital transmission system eliminates intermodulation, allowing channels to be arranged in an equidistant grid spaced 600 kHz apart. With 56 MHz of tuning bandwidth, the system supports up to 90 simultaneous channels and provides 2,240 selectable frequencies for precise fine-tuning.

Smart Assist App

The EW-D Smart Assist App connects via Bluetooth Low Energy, streamlining setup and remote operation. The automatic scan function further simplifies the process, creating reliable wireless connections quickly and with minimal effort.

Audio Performance

Delivering an impressive 134 dB audio input dynamic range, the transmitter removes the need for sensitivity adjustments while preserving every detail of the sound source. This ensures clarity and consistency across different performance applications.

Power Options

The EW-D SK offers flexible power solutions. It can operate for up to 12 hours with the optional rechargeable lithium-ion battery pack, or up to 8 hours with the included AA batteries, making it ideal for both short events and extended use.