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EW-D SK (R4-9)

Article No. 508782

Digital UHF bodypack transmitter for use with Evolution Wireless Digital.

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.

Features⁰⁸

Digital transmission operating in the UHF spectrum greatly enhances range, reliability and scalability
Smart Assist App connects via Bluetooth Low Energy for a streamlined setup and operation at a distance
Auto scan creates reliable connections with minimal time and effort
134 dB audio input dynamic range eliminates need for sensitivity adjustments and preserves every detail
Elimination of intermodulation enables channels to be placed in an equidistant tuning grid 600 kHz apart
56 MHz of tuning bandwidth and equidistant spacing enables up to 90 channels
2,240 selectable frequencies allow for fine tuning
Lithium-Ion battery pack (sold separately) delivers up to 12 hours of operation (up to 8 hours of operation with 2x provided AA batteries)

Top Specs

Dimensions63 x 80 x 20 mm (without antenna)
Weight (g)approx. 120 g
Latency (ms)1.9 ms

Sennheiser Evolution Wireless Digital microphone system on a white pedestal.

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.

Man adjusting Sennheiser Evolution Wireless Digital audio equipment.

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.

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Wireless Frequency Finder

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How To Guide

Need help? Check out our step-by-step How To Guide.

How To Guide

Tech Specs

Product

Total harmonic distortion (THD)
≤ -60 dB for 1 kHz @ -3 dBfs input level
Latency (ms)
1.9 ms

Frequency Specifications

Audio frequency response
20 Hz - 20 kHz (-3 dB) @ 3 dBfs

Acoustic Properties

Dynamic range (>)
134 dB

Connectivity

Connection
Wireless

Ambient Conditions

Operating relative humidity (≤ %)
5 - 95 % (non-condensing)
Operating temperature (C)
-10 °C - +55 °C (14 °F - 131 °F)

Battery & Power

Battery capacity (Ah)
2.3
Battery count
2
Battery included
Y
Battery voltage (V)
1.5
Charging current (mA)
< 300 mA

Electrical Properties

Input voltage
2.0 - 4.35 V
Transmission power (mA)
Audio link: 10 mW ERP (Range Y1-3: 12 mW ERP) BLE: max. 10 mW EIRP

Dimensions

Dimensions
63 x 80 x 20 mm (without antenna)
Height (mm)
73
Length (mm)
350
Weight (g)
approx. 120 g
Width (mm)
81
Product height
73
Product length
350
Product weight (g)
120
Product width
81

Bluetooth

Bluetooth transmission frequency
2402 - 2480 MHz

Downloads⁴⁷

Instruction Manuals

Instruction manual and frequently asked questions - Evolution Wireless Digital (EW-D | EW-DX | EW-DP) (PDF)
.PDF
·
42.48 MB
Download

Safety Instructions and Regulatory Information

Safety Instructions - EW-D EM | EW-D SKM-S | EW-D SK
.PDF
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605.36 KB
Download
Specifications & Manufacturer declarations - EW-D EM | EW-D SKM-S | EW-D SK
.PDF
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862.63 KB
Download

Spec Sheets

EW-D_SK_Product_specification_v1.4_EN.pdf
.PDF
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239.68 KB
Download
Product specification - EW-D CI1 SET
.PDF
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250.29 KB
Download
Product specification - EW-D ME2/835-S SET
.PDF
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336.22 KB
Download
Product specification - EW-D ME2 SET
.PDF
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250.64 KB
Download
Product specification - EW-D ME3 SET
.PDF
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255.01 KB
Download
Product specification - EW-D ME4 SET
.PDF
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250.98 KB
Download
Product specification - EW-D SK BASE SET
.PDF
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248.1 KB
Download
System specification - Evolution Wireless Digital
.PDF
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344.13 KB
Download

Release Notes

EW-D Firmware Release Notes v2.0 EN
.PDF
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106.06 KB
Download

Technical Drawings

Outline dimensions EW-D SK (DWG)
.DWG
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1.61 MB
Download
Outline dimensions EW-D SK (DXF)
.DXF
·
5.64 MB
Download

Frequency Sheets

Frequency presets - EW-D Range Q1-6 (470.2-526 MHz)
.PDF
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84.68 KB
Download
Frequency presets - EW-D Range R1-6 (520-576 MHz)
.PDF
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84.59 KB
Download
Frequency presets - EW-D Range R4-9 (552-607.8 MHz)
.PDF
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84.6 KB
Download
Frequency presets - EW-D Range S1-7 (606.2-662 MHz)
.PDF
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84.58 KB
Download
Frequency presets - EW-D Range S4-7 (630-662 MHz)
.PDF
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83.76 KB
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Frequency presets - EW-D Range S7-10 (662-693.8 MHz)
.PDF
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83.84 KB
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Frequency presets - EW-D Range U1/5 (823.2-831.8 MHz & 863.2-864.8 MHz)
.PDF
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82.92 KB
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Frequency presets - EW-D Range V3-4 (925.2-937.3 MHz)
.PDF
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82.45 KB
Download
Frequency presets - EW-D Range Y1-3 (1785.2-1799.8 MHz)
.PDF
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82.55 KB
Download