Sennheiser Evolution Wireless Digital audio systems come trusted, tested, and we highly recommend — not only for their quiet operation, but also for their ease of use. These digital wireless audio systems sidestep the noise and interference common to traditional analog wireless setups, pushing the limits of dynamic range to an impressive 134dB. UHF transmission dramatically increases range and reliability across all Evolution Wireless Digital devices. Not only that, but 2,240 selectable frequencies on the 56MHz bandwidth make these systems highly scalable, allowing for up to 90 channels of audio per wireless network. Now your whole band can perform wirelessly on the same network without having to worry about stepping on one another’s RF real estate. Plus, the Evolution Wireless Digital series’ automated setup creates reliable connections without complicated menu diving; for advanced users, more granular configuration and setup options are available via the free Sennheiser Smart Assist mobile app for Android and iOS.

The Sennheiser EW-D SK wireless base set is perfect for the performer or crew who packs their own lavalier, headset mic, or compatible instrument cable. It includes everything else required to get up and operational: a body pack transmitter, a receiver, a rack kit, and accessories.

What’s Included:

EW-D EM receiver and rack kit

Sennheiser wireless receivers are longstanding favorites of audio professionals. As with past systems, the Evolution Wireless Digital receiver is deceptively simple to set up yet it packs plenty of control under the hood. Sync and Auto Scan options make it straightforward to connect and manage devices. Meanwhile, the crisp LED display shows signal strength and battery life of your connected device at a glance. And if you need more control, advanced features are just a few button presses away. Got a mobile device? Connect to the Evolution Digital Wireless receiver via Bluetooth using the free Sennheiser Smart Assist app for Android and iOS, and you’ve got a wealth of configuration and monitoring tools right at your fingertips. The EW-D receiver also includes a rack kit for seamless integration into your stage and studio pro audio setups.

EW-D SK body pack transmitter

The Sennheiser SK wireless body pack transmitter gives you full freedom of motion onstage, in the round, and on the platform. Connect your own lavalier mic, headset mic, or CI 1 instrument cable (each sold separately), and you’re locked and loaded for rock-solid wireless performance. The compact SK body pack clips discretely onto a belt or slips into a back pocket. A pair of AA batteries nets you up to eight hours of wireless operation. Want to go green and save some green in the process? Connect the optional Sennheiser BA-70 rechargeable lithium-ion battery pack (not included) and get up to 12 hours of performance on a single charge.

Take control with the EW-D Smart Assist App

Sennheiser’s EW-D Smart Assist App for iOS and Android can control every aspect of your wireless system from anywhere in the venue — no extra hardware required! Within the app, you can manage up to 16 channels of audio via Bluetooth. It’s also super easy to use, thanks to a user-friendly interface: simply touch a button and get at-a-glance battery monitoring or streamlined channel switching. With the EW-D Smart Assist App in your back pocket, you can perform in total confidence.

Sennheiser Evolution Wireless Digital EW-D SK Wireless Handheld Base Set Features:

• Puts high-headroom wireless audio in the hands of audio professionals and working musicians everywhere
• Base set: includes body pack transmitter, receiver, rack kit, and accessories
• Optional lav mic, headset, and instrument cable not included
• Perfect for singers to speaking professionals
• Sennheiser Smart Assist mobile app (iOS/Android) provides configuration and monitoring tools
• Sidesteps the noise and interference common to traditional analog wireless systems
• Massive 134dB dynamic range pushes the range of wireless audio
• UHF transmission increases range and reliability across devices
• Highly scalable — up to 90 channels available on the 56MHz bandwidth

Worry-free Wireless!

We wanted you to know that all of the wireless systems you see here – and all of the wireless systems available at Sweetwater – are 100% compliant with the Federal Communication Commission's new rules governing wireless systems. You can be confident that these systems will work within the FCC's currently permitted frequency/power ranges. Please be aware that systems operating in the 617-652 MHz or 663-698 MHz range are now operating outside the FCC's new guidelines. To find out more, visit the FCC's wireless microphone website at  www.fcc.gov/cgb/wirelessmicrophones  or give them a call at (888) CALL-FCC.

Additional Media

Wireless Microphone Buying Guide

Warranty Info

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Tech Specs

• Simultaneous Systems Per Band:90
• System: Analog/Digital:Digital
• System: Frequency Range:520-576MHz
• System: Operating Range:328 ft. Line-of-sight
• System: Frequency Response:20Hz-20kHz
• System: Channel Selection:Auto
• Transmitter: Form Factor:Bodypack
• Transmitter: Dynamic Range:134dB
• Transmitter: Connector:Locking 1/8"
• Transmitter: Battery Type:2 x AA / Sennheiser Rechargeable battery pack (not included)
• Transmitter: Battery Life:8 hours (AA), 12 hours (sennheiser pack)
• Transmitter: Dimensions:2.4" x 3.1" x 0.78"
• Transmitter: Weight:0.26 lbs. (without batteries)
• Receiver: Antenna Type:Detachable
• Receiver: Type:Rackmount (kit included), Table Top
• Receiver: Rackmountable:Yes
• Receiver: Rack Spaces:Half-rack
• Receiver: Front Panel Display:Yes
• Receiver: Displays:OLED
• Receiver: Outputs:1 x XLR, 1 x 1/4"
• Receiver: Power Source:12V DC power supply (included)
• Receiver: Dimensions:8.3" x 1.7" x 7.4"
• Receiver: Weight:2.2 lbs.
• Manufacturer Part Number:508741

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Rated 5/5

All of these features for THIS price???

A few months ago when searching for a guitar wireless system I was going to go with Shure or Sennheiser. When I learned about the dynamic range of this unit I knew it was the one. I have Strats with light output pickups to Pauls with... read more

From their studio-standard MD 421 II drum mic to their trusty headphones and ultra-reliable wireless systems, there are countless good reasons why the artists and engineers here at Sweetwater are quick to recommend Sennheiser products. In our personal studios, you'll find plenty of HD 280 Pro headphones, e609 Silver cab mics, and other staples, while many of us rely on EW wireless in-ear systems onstage. Our long association with Sennheiser means we constantly have their latest products in stock and in our hands, so we're ready to tell you all about them. If you're looking for Sennheiser gear, then get the information you need from people who use it - trust your Sweetwater Sales Engineer.

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Simultaneous Systems Per Band	90	90	90	-	-
System: Analog/Digital	Digital	Digital	Digital	Digital	Digital
System: Frequency Range	520-576MHz	470-526MHz	552-608MHz	552-608 MHz	520-576 MHz
System: Operating Range	328 ft. Line-of-sight	328 ft. Line-of-sight	328 ft. Line-of-sight	328 ft. Line-of-sight	328 ft. Line-of-sight
System: Frequency Response	20Hz-20kHz	20Hz-20kHz	20Hz-20kHz	20Hz-20kHz	20Hz-20kHz
System: Channel Selection	Auto	Auto	Auto	Auto	Auto
Transmitter: Form Factor	Bodypack	Bodypack	Bodypack	Bodypack	Handheld
Transmitter: Dynamic Range	134dB	134dB	134dB	134dB	-
Transmitter: Connector	Locking 1/8"	Locking 1/8"	1 x Locking 1/8"	-	-
Transmitter: Battery Type	2 x AA / Sennheiser Rechargeable battery pack (not included)	2 x AA / Sennheiser Rechargeable battery pack (not included)	2 x AA (included) or Rechargeable Lithium-ion battery (not included)	2 x AA / Sennheiser Rechargeable battery pack	2 x AA / Sennheiser Rechargeable battery pack (not included)
Transmitter: Battery Life	8 hours (AA), 12 hours (sennheiser pack)	8 hours (AA), 12 hours (sennheiser pack)	8 hours (AA), 12 hours (rechargeable)	8 hours (AA), 12 hours (sennheiser rechargeable)	8 hours (AA), 12 hours (sennheiser pack)
Transmitter: Dimensions	2.4" x 3.1" x 0.78"	2.4" x 3.1" x 0.78"	2.4" x 3.1" x 0.78"	2.4" x 3.1" x 0.78"	10.6" x 2"
Transmitter: Weight	0.26 lbs. (without batteries)	0.26 lbs. (without batteries)	0.26 lbs.	0.26 lbs. (without batteries)	0.66 lbs. (without batteries)
Receiver: Antenna Type	Detachable	Detachable	Detachable	Detachable	Detachable
Receiver: Type	Rackmount (kit included), Table Top	Rackmount (kit included), Table Top	Rackmount (kit included), Table Top	Table Top, Rackmount	Table Top with rack kit (included)
Receiver: Rackmountable	Yes	Yes	Yes	Yes	Yes
Receiver: Rack Spaces	Half-rack	Half-rack	0.5U	Half-rack	Half-rack
Receiver: Front Panel Display	Yes	Yes	Yes	Yes	-
Receiver: Displays	OLED	OLED	OLED	OLED	OLED
Receiver: Outputs	1 x XLR, 1 x 1/4"	1 x XLR, 1 x 1/4"	1 x XLR, 1 x 1/4"	1 x XLR, 1 x 1/4"	1 x XLR, 1 x 1/4"
Receiver: Power Source	12V DC power supply (included)	12V DC power supply (included)	12V DC power supply (included)	12V DC power supply (included)	12V DC power supply
Receiver: Dimensions	8.3" x 1.7" x 7.4"	8.3" x 1.7" x 7.4"	8.3" x 1.7" x 7.4"	8.3" x 1.7" x 7.4"	8.3" x 1.7" x 7.4"
Receiver: Weight	2.2 lbs.	2.2 lbs.	2.2 lbs.	2.2 lbs.	2.2 lbs.

See also: Transmitters, Sennheiser, Sennheiser Wireless Transmitters & Receivers