EW-DX 835-S Set
Sennheiser Discontinued

EW-DX 835-S Set

Two-channel digital UHF wireless system with a rackmount receiver and two handheld transmitters fitted with mute switches and MMD 835 dynamic cardioid capsules. Aimed at presenters, singers, classrooms, corporate sites and live productions.

  • 2-channel EW-DX EM 2 rackmount receiver with 2 handheld transmitters
  • MMD 835 dynamic cardioid capsules, mute switch on the handhelds
  • 134 dB input dynamic range, 1.9 ms latency (SePAC codec)
  • AES 256 encryption
  • Up to 12 h operation per BA 70 battery
  • Up to 88 MHz switching bandwidth, up to 293 channels in LD Mode
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Description

This set pairs one EW-DX EM 2 rackmount receiver (two channels) with two EW-DX SKM-S handheld transmitters. Each handheld carries an MMD 835 dynamic cardioid capsule and has a mute switch. Two BA 70 rechargeable batteries are supplied, giving up to 12 hours of operation per charge.

The system uses the SePAC codec, which provides a 134 dB input dynamic range, so transmitter gain does not need to be set, and a wireless latency of 1.9 ms. Audio is protected with AES 256 encryption. An AutoScan function checks the surroundings and assigns frequencies with equidistant channel spacing: 600 kHz in Standard Mode for up to 146 channels, or 300 kHz in Link Density Mode for up to 293 channels. Switching bandwidth reaches 88 MHz. The handheld has function buttons with a button lock and an E-Ink display that keeps showing parameters when the batteries are removed.

The receiver is network enabled for control with Sennheiser Control Cockpit, Wireless System Manager and third-party media control systems through a plug-in. The Smart Assist App connects over Bluetooth Low Energy at distances up to 25 meters. The transmitters have charging contacts for in-device charging with the optional CHG 70N charger, and the capsule interface accepts a range of Sennheiser and Neumann capsules sold separately.

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Specifications

Brand
Sennheiser
Model
EW-DX 835-S Set
Category
Live sound › Wireless systems

Audio

Polar pattern
Cardioid
Transducer principle
Dynamic
Audio frequency response
20 Hz - 20 kHz (-3 dB) @ 3 dBfs
Dynamic range
134 dB
Sensitivity
2,1 mV/Pa
Total harmonic distortion
≤ -60 dB for 1 kHz @ -3 dBfs input level
Latency
1.9 ms
Encryption
AES 256

Wireless

Switching bandwidth
Up to 88 MHz
Channel spacing, Standard Mode
600 kHz, up to 146 channels
Channel spacing, Link Density Mode
300 kHz, up to 293 channels
Bluetooth Low Energy transmission power
max. 10 mW EIRP
Smart Assist App range (BLE)
Up to 25 meters

Power

Battery operation time
Up to 12 hours (BA 70)
Input voltage
2.0 - 4.35 V

Physical

Dimensions
212 x 44 x 189 mm
Weight
approx. 1000 g (without antennas and power supply)
Operating temperature
-10 °C - +55 °C (14 °F - 131 °F)
Operating relative humidity
5 - 95 % (non-condensing)
Package weight
3630

In the box

Receiver
1 x EW-DX EM 2 rack receiver
Handheld transmitters
2 x EW-DX SKM-S
Microphone modules
2 x MMD 835
Batteries
2 x BA 70 rechargeable battery packs
Power supply
EW-D Power Supply with country adapters
Mounting and accessories
2 x MZQ 1 microphone clamp, 2 x rod antennas, GA 3 rack mount kit, 4 x rubber feet

Data: archive.org; photos: Sennheiser product page (Wayback copy) · updated 2026-10-14 · Found a mistake? Write to us