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Sennheiser EWD1-845S


Evolution wireless D1 Vocal-Set with the legendary evolution e845 super-cardioid caspule and mute-switch for live stage use.

  • Handheld transmitter with interchangeable microphone capsule (evolution 835, 845, 935, 945)
  • Version with and without mute switch
  • Robust metal housing
  • 9.5“ rack-mount receiver
  • Clear OLED display
  • Including transport case, power supply unit, antennas, battery compartment and batteries


Tag: Categories: , SKU: RM/HH/SEN19

Evolution wireless D1 is a digital sound transmission system that makes no compromises when it comes down to reliability, sound quality or user-friendliness. ew D1 is the number one for every gig and live event when you need to simply rely on pure brilliance. It can run up to 15 output lines in parallel and independently adjust the sensitivity of every transmission.

Ease of use, outstanding live sound and extremely robust radio transmission make the new digital evolution wireless D1radio microphone system the perfect tool for ambitious bands and artists of all genres. Intuitive menu navigation on the large, high-contrast OLED display makes it easier than ever to use. evolution wireless D1 has a global application,with frequencies that can be used in virtually any country without need for registration or additional costs.

Wireless link protection

evolution wireless D1 independently chooses the best transmission frequency, automatically and imperceptibly selecting a free frequency before any unwanted interference can be heard. So the system can also work securely in environments with WLAN and Bluetooth. Up to 15 channels can run simultaneously under ideal conditions.

Ease of use

Artists want to concentrate on their performance — not on technical configurations. Evolution wireless D1 transfers all the settings you need automatically and ensures perfect results — stress free.

Perfect live sound

evolution wireless D1 uses the state-of-the-art aptX Live ® audio codec for outstanding sound quality across the entire frequency range and with minimal latency. With the interchangeable microphone capsules from the renowned evolution 800 and 900 series, there is no comprise on high-quality sound.

Licence free — worldwide

evolution wireless D1 uses the 2.4 GHz band for radio transmission virtually anywhere in the world, without registration.

Remote control

You can manage and monitor the entire system with the D1 Remote Control app. Access to output level, audio effects and much more all help to make the system extremely comfortable to use.

Transmitter power supply

The transmitter also has a battery compartment for 2 x 1.5 V AA batteries, providing power for 6 hours of continuous use. Optional Li-ion battery packs make the already excellent evolution D1 performance even better. Runtime increases to an impressive 11 hours. The batteries are easily charged, either in the CHG 2 system charger or using any USB power source, including the one in the car on the way to the gig.


  • Choice of various microphone heads from the renowned
  • evolution series
  • Up to 15 compatible channels (under optimal conditions)
  • in license-free 2.4 GHz band
  • Automatic frequency management
  • Prevents interference: Intelligent channel back-up allows
  • co-existence with Wi-Fi & Bluetooth
  • Audio effects: equalizer, de-esser, automatic gain control
  • iOS & Android app for remote control and monitoring of
  • the system
  • Sturdy metal housing

Frequency response 20 to 20.000 Hz
Dynamic range > 135 dB (A)
THD, total harmonic distortion typ. < 0,1 %
Audio sampling 24 bit/48 kHz
Signal-to-noise ratio ≥ 105 dB (A)
RF frequency range 2,400 to 2,483.5 MHz
Modulation GFSK with back channel
Transmission method TDMA, time diversity, frequency diversity, fast switching antenna diversity
Latency 3.9 ms
Audio codec APT-X Live
Operating temperature – 10 °C to 55 °C
Storage temperature – 20 °C to 70 °C (The temperature range is influenced by the battery characteristics)

Frequency response 50 to 20,000 Hz
RF output power adaptive, up to 100 mW (country-specific)
Display LCD
Weight approx. 280 g incl. microphone head
Input sensitivity automatic sensitivity adjustment
Battery Specification 2 x AA size battery (1.5 V), Operating time: typ. 6 h
Accupack BA 10 (Li-Ion, 3.7 V), Operating time: typ. 11 h (optional accessory)

Latency multi-frequency targets
RF sensitivity <-90 dBm
RF output power back channel 10 mW/100 mW (country-specific)
Audio output Mic/line level switch –24 dB/0 dB, XLR, balanced max 18 dBu, Jack, unbalanced/balanced max 12 dBu/max 18 dBu
Low-cut filter –3 dB at 120 Hz
Equalizer 7-band graphic equalizer
Automatic gain control (AGC) compression/expansion with automatic make-up gain function
Display OLED
Connection XLR/¼” (6.3 mm) jack
Antenna connector 2 x Rev-SMA
Network socket RJ45
Network protocol Media Control Protocol, TCP/IP IPv4 (DHCP, Manual)/IPv6
Power supply 12 V DC hollow jack
Current consumption 350 mA
Weight approx. 824 g

What’s in the box?

  • EM-D1 rackmount receiver
  • SKM-D1 handheld transmitter
  • MZQ microphone clamp
  • NT-12 power supply
  • Transport Case
  • User Manual




DM Music Ltd are a Sennheiser Professional Audio Premium Partner. We have been supplying Sennheiser equipment for many years and regard it as our leading microphone brand. If you require anything not seen below then call us on: 01582 761122


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