Sennheiser EW-DX SK Wireless Bodypack Transmitter

• 142 dB input dynamic range - no need to set gain on wireless transmitters, thanks to proprietary Sennheiser Performance Audio Codec (SePAC)
• 10mW fixed RF power for up to 100 m/328 ft of range
• Charging contacts for in-device charging with CHG 70N charger
• Persistent E-Ink display for "always on" information - parameters visible on screen even when batteries are removed
• Up to 12 hours of operation time with rechargeable lithium ion battery BA 70
• Function buttons - control all transmitter settings directly from bodypack including button lock function
• Programmable mute switch - RF mute, AF mute or disabled
• Digital audio trim
• Test tone generator
• Switchable LED configuration (On/Off)
• Switchable low cut (Off, 30, 60, 80, 100, 120 Hz)
• Instrument input with cable emulation to simulate cable characteristics
• Versatile charging options available: CHG 70 N, L 70 USB, LM 6070 Module for L 6000 full rack charging station
• Compatible with a wide range of Sennheiser lavalier and headset microphones with 3.5 mm jack plug connection
• Metal housing
• Worldwide usage (specific frequencies subject to local RF regulations)
• All components of the Evolution Wireless Digital Family are designed to interoperate. Feature availability may be limited by the respective series, such as switching bandwidth and use of Link Density mode.

Compatible with all Sennheiser Evolution Wireless Digital family components and systems, as well as lavalier microphones, headset microphones, and instrument cables fitted with a 3.5 mm jack plug.

• Instruction manual and frequently asked questions - Evolution Wireless Digital (EW-D | EW-DX | EW-DP)
• ew-d_bedienungsanleitung_11_2025_de.pdf
• ew-d_bedienungsanleitung_11_2025v2_de.pdf
• EW-DX_Firmware_4.1.1.sennpkg
• EW-DX_Product_Brochure_Education_Corporate_EN.pdf
• EW-DX_Sound_Control_Protocol_11_2023_EN.pdf
• How-To_Guide_-_Control_Cockpit_Software_and_EW-DX_Firmware.pdf
• EW-DX_Product_Brochure_Education_Corporate_CN.pdf
• EW-DX_Product_Brochure_Education_Corporate_KR.pdf
• EW-DX_EM2_SKM_SK_Quick_Guide_05_2026.pdf

What audio connector does the transmitter use?

It is equipped with a 3.5 mm jack connector compatible with a wide selection of lavalier microphones, headsets, and instrument cables.

What is the expected wireless operating range?

The transmitter delivers a reliable operating range of up to 100 m (328 ft) with its fixed 10 mW RF output.

Does the display remain visible when the transmitter is turned off?

Yes, the persistent E-Ink display retains all parameter information on-screen even when the device is powered down or batteries are removed.

What is the maximum operating runtime?

The unit provides up to 12 hours of continuous operation when powered by a rechargeable BA 70 lithium-ion battery pack.