Sennheiser EW-D SK (S1-7) RF Bodypack Transmitter

Save R 950.00
SennheiserSKU: SEN-508783

Sale priceR 6,640.00 Regular priceR 7,590.00

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Compact and versatile bodypack transmitter for use with Evolution Wireless Digital receivers.

Versatile and feature-rich digital wireless system for those who sing, speak or play instruments that allows for seamless product pairing and management via the EW-D Smart Assist App. This bodypack transmitter is compatible with a wide range of Sennheiser headset microphones and clip-on/lavalier microphones.

Raising the bar

Evolution Wireless Digital breaks the boundaries by providing more dynamic range than any wireless system currently on the market. Automatically securing the most reliable signal in a matter of seconds and scalable up 90 channels thanks to 56 MHz of tuning bandwidth, it’s easy to see why this wireless system is in a class of its own.

Equidistant Spacing – simpler than it sounds

Evolution Wireless Digital features an equidistant tuning grid previously only found in our flagship Digital 6000 and Digital 9000 wireless systems. Quality components with exceptional linearity eliminate intermodulation between EW-D transmitters, allowing frequencies to be equally spaced every 600 kHz alongside each other. This simplifies frequency coordination for wireless beginners and seasoned professionals alike, and also contributes to the system’s scalability and impressively high channel count.

An engineer in your pocket

The power of Bluetooth Low Energy puts full control right in the palm of your hand with the Sennheiser Smart Assist app. Take advantage of a remarkably fast automated setup, mobile access to every system setting and the added benefit of remote monitoring, all from the convenience of your Android or iOS device. Save time, save energy and perform with confidence.


What's in the box:

  • 1x EW-D SK bodypack transmitter
  • 1x Pouch
  • 1x quick guide
  • 1x safety guide
  • 1x manufacturer declaration sheet


Features at a Glance:

  • Digital wireless eliminates noise, interference and static bursts
  • UHF transmission greatly enhances range, reliability and scalability
  • Mobile App streamlines setup and operation and eliminates complicated menu
  • Automated setup creates reliable connections with minimal time and effort
  • Up to 2,240 selectable frequencies support up to 24 wireless systems per frequency range
  • 56 MHz Bandwidth will allow for up to 90 channels
  • Preserves every detail of even the most dynamic performances with 134 dB transmitter dynamic range
  • Compatible with a wide range of Sennheiser headset microphones and clip-on/lavalier microphones
  • Lithium Ion battery pack delivers up to 12 hours of operation (up to 8 hours of operation with AA batteries)
  • All metal housing




Frequency range

606.2 - 662 MHz


63 x 80 x 20 mm (without antenna)


≤ -60 dB for 1 kHz @ -3 dBfs input level


approx. 120 g

Operating temperature

-10 °C - +55 °C (14 °F - 131 °F)

Operating relative humidity

5 - 95 % (non-condensing)

Audio frequency response

20 Hz - 20 kHz (-3 dB) @ 3 dBfs

Input voltage range

2.0 - 4.35 V

Current consumption

< 300 mA

Power supply

2 AA batteries 1.5 V (alkaline manganese) or BA 70 rechargeable battery pack

Transmission power

Audio link- 10 mW


(Range Y1-3: 12 mW ERP)

BLE- max.

10 mW EIRP

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