The Sennheiser EW-D SK BASE SET with Bodypack Transmitter and No Mic combines pristine 24-bit digital audio with an impressive 134 dB dynamic range, equidistant tuning grid, and automated Bluetooth set up App for your phone to create a professional rackmount wireless microphone system that anyone can use. Though easy to set up and simple to operate, the system's pro-level feature set is well equipped to handle the needs of both first-time and experienced users alike, including presenters and lecturers working in business and educational settings, clergy in houses of worship, and live performers in theaters or on musical stages.

The EW-D's ultrawide dynamic range means that input-sensitivity adjustments on the transmitter are not required. Based on the company's higher-end Digital 6000/9000 wireless systems, the equidistant tuning grid removes the need for frequency coordination and enables you to operate up to 90 mic channels simultaneously. The UHF transmission greatly enhances range (up to 330') and the wide 56 MHz bandwidth gives you the ability to find a clean channel from 2240 available frequencies.

Intelligent Switching Diversity offers effective protection against RF interference, and the ultralow 1.9ms latency eliminates any noticeable lag when performing live. Additionally, Bluetooth connectivity enables seamless pairing and remote control from your phone via the Smart Assist App. All these features allow the EW-D to automatically handle mic levels and secure the most reliable signal for you in a matter of seconds—without the hassles that can make using a wireless system challenging.

This EW-D SK BASE SET is configured with a single-channel EW-D EM receiver and a robust, lightweight EW-D SK bodypack transmitter with a metal housing well suited for daily use on stage. The transmitter is offered without a microphone, so you can choose the one that best fits your application.

The transmitter pairs with the receiver via Bluetooth Low Energy from up to 120' away, enabling you to quickly pair the mic directly from the stage without having to bring it close to the receiver. The bodypack provides up to 8 hours of operation on two AA batteries or 12 hours with a BA 70 lithium-ion rechargeable battery pack (available separately). The L70 USB dual-charging station (available separately) is required for the BA 70 batteries.

The half-rack EW-D EM receiver with removable antennas is housed in a rugged, all-metal chassis built to withstand the rigors of professional use. It can either sit on a tabletop or be rackmounted for portable rigs and permanent A/V installs.

The receiver features a high-contrast, black-&-white OLED display that uses a streamlined menu system with a dedicated Escape button for quick menu navigation, even in low-light situations. The auto-scan function automatically seeks out the cleanest available frequency for you. If you prefer, you can also configure, control, and operate your system via Bluetooth, using the Smart Assist App installed on your iOS/Android phone/tablet—within a 120' range.

Note: The EW-D digital system is NOT backward-compatible with previous evolution analog systems.

Open Box Products Have a Limited 2-Year Manufacturer Warranty    For Presenters, Performers, Lecturers    Pro Features with Fast & Easy Set Up    Lightweight Bodypack Transmitter    Intelligent Diversity Rackmount Receiver    134 dB of Dynamic Range, 24-Bit Audio    2240 Frequencies on Equidistant Grid    Set Up/Operate from Phone via Bluetooth    8-Hour AA /12-Hour Rechargeable Battery    Expandable to 90 Mic Channels/330' Range

• With an remarkable 134 dB dynamic range on the transmitter's input, the days of worrying about overloading your signal are over. The EW-D can handle a wide variety of sound sources, including loud vocalists and performers, connections to musical instruments, and even line-level signals from mixers, all without requiring any gain adjustment at the transmitter.
• The ultrawide dynamic range yields impressive signal-to-noise performance and accurate transient response, which bring out all the nuances of your sound.
• With 24-bit digital audio and a flat 20 Hz to 20 kHz frequency response, the EW-D delivers clear, accurate audio reproduction.
• The system's ultralow 1.9ms latency is practically undetectable, helping musicians and vocalists to stay in the groove when performing live.

• The rugged, all-metal transmitter is equipped with a mute button that can be locked out and overridden from the receiver or a mobile device during a performance.
• The transmitter quickly pairs with the receiver via Bluetooth at a distance up to 120', at the press of a button.

Sennheiser offers a variety of headset, instrument cable, and lavalier microphone options to adapt your EW-D system as your needs evolve.

Presenters/Clergy/Lecturers/Educators:

• The sweat-resistant, subminiature MKE 2 omnidirectional lavalier mic offers a pristine, broadcast-quality sound and is easy to conceal.
• The unobtrusive ME 2 omnidirectional lavalier mic provides a forgiving pickup pattern that captures sound equally well in every direction. 
• The ME 4 cardioid lavalier mic cardioid lavalier mic offers a narrower, feedback-resistant pickup pattern for louder events.
• The ME 3 cardioid headset mic provides enhanced speech clarity for lectures and presentations.

Guitarists/Keyboardists:

• The CI 1 instrument cable lets you connect the bodypack transmitter to a guitar, bass, or keyboard.

• The EW-D EM receiver offers intuitive front-panel controls and a high-contrast OLED with meters for RF, battery status of the associated transmitter, and audio output that make setup a breeze.
• The auto-scan function automatically seeks out the cleanest available frequency for you.
• The back panel houses a balanced XLR output and an unbalanced 1/4" output for direct connection to any PA system or mixing board.
• The two detachable 1/4-wave dipole antennas on the back of the unit can be upgraded for improved RF performance.
• The unit comes with a kit for rackmount installation and a universal power supply with EU, US, and UK adapters.

• The EW-D features an equidistant tuning grid that equally spaces 2240 frequencies across the wide 56 MHz bandwidth to prevent disruptive intermodulation issues that occur when multiple transmitters operate in confined spaces.
• The equidistant grid also enables you to maximize your channel count and operate up to 90 mic channels simultaneously without having to worry about frequency coordination and channel groups—making your setup easier, even in congested RF environments.
• The EW-D uses Intelligent Switching Diversity technology to mount a superior defense against multipath and other anomalies that cause RF noise. The system compares incoming signals on two independent antennas and receiver circuits to ensure optimal wireless quality. The receiver switches between antennas only during header data as to never affect the audio information.
• The EW-D operates in the UHF band, far away from potential Wi-Fi interference in the 2.4 GHz band.

• With the Smart Assist App (free download available separately) installed on your Android/iOS phone/tablet, the power of Bluetooth Low Energy connectivity puts full control of the EW-D right in the palm of your hand. Use your mobile device to connect via Bluetooth for efficient operation and monitoring of your system—with no wireless expertise required.
• Take advantage of a remarkably fast automated setup of receivers and transmitters, automatic and manual frequency allocation, muting, battery status, and channel naming to help keep systems organized—all only one tap away.
• Aside from instant access to all system settings, there is also a support hub with video tutorials and detailed manuals to help get you started.
• When working with multiple systems, the App provides access to all system settings, centralizing control and eliminating the need for complicated menu navigation on each device. Wireless channel naming helps to keep systems organized.
• Up to 16 mic channels can be handled remotely via a single mobile device. Additional channels can be controlled via additional phone/tablets with a maximum of 16 channels per device. 
• If your phone is not available, you can fully operate your system using the buttons on the receiver.

• The rear-mounted, 1/4-wave detachable antennas can be upgraded to longer, 1/2-wave dipole antennas (available separately) for added range and reliability.
• Antennas may not perform optimally when rear-mounted inside a metal equipment rack. Using the AM 2 antenna front-mount kit (available separately) gives you the option to mount the two antennas on the front of your rack, maintaining line-of-sight between the receiving and transmitting antennas for even greater connection reliability—this option is available only when mounting just one EW-D EM receiver per 1 RU rackspace.
• Adding the ADP UHF passive/directional remote antennas (available separately) to your system enables you to position the antennas closer to your transmitter and orient them for maximum coverage, achieving professional-quality RF signal reliability with virtually no dropouts.
• For larger, multi-receiver systems, the EW-D ASA active antenna splitter (available separately) splits the signals from the two antennas (now connected to its rear panel), delivering the RF signals to up to four receivers in a rack. The Unit also provides DC power to the four receivers, for less clutter in your rack.

• The EW-D SKM-S handheld transmitter is available with a variety of mic capsules for presenters and performers who prefer the flexibility of a handheld microphone—capsules include the MMD 845, MME 865, MMD 935, MMD 945, MMD 42, MM 435, ME 9004, MD 5235, ME 5004, and Neumann KK 204 to name a few.

Related Questions and Answers

Q: 1. What kind of headset microphones are recommended?

A: There are many available headset microphone options compatible with the Sennheiser EW-D SK Digital Wireless Bodypack Transmitter. A compatible option will have a locking, Sennheiser-wired 3.5mm connection. Headset models from Countryman, DPA, as well as Sennheiser's own headsets are some of the top choices. Application dependent specifications such as cardioid or omnidirectional pickup pattern and color options should also be considered. This search link filters compatible options in this category: https://bhpho.to/351vHVr

Q: 2. Can you use this system with an analog EW100 system for panel discussion or is the delay going to cause out of sync problems?

A: The Sennheiser EW-D 835-S SET Digital Wireless Handheld Microphone System has a latency of about 1.9 ms, so the offset will not be substantial when used alongside an analog wireless system.

Q: 3. Does this work with rode reporter mic ? I tried hooking it up and it’s super low. The ride is a dynamic and doesn’t need phantom. But connecting to zoom h5 , signal is low

A: This will work with the Rode or any other dynamic microphone. If playing with the levels on the recorder does not help, you may try to call or chat with a B&H professional who can try to guide you and trouble shoot it for you.

Q: 4. Does this transmit/receive a stereo signal?

A: Hi Yong - the XS Wireless Digital system transmits a single channel of mono audio. The included 3.5mm connector has a "stereo" tip so that you will get the same mono signal on both your left and right inputs on your camera via your 3.5mm stereo input.

Q: 5. Looks like the antenna is non removable, anyone have info on that.

A: That is correct.

Q: 6. can i use this directly from a mixer with 3.5mm jack output and send it to receiver then to dslr? i dont want to use lav mics but use this system in my mixer as wireless transmitting audio.

A: Yes you can. NOTE: The input on the transmitter is Mic Level so make sure that the output on your mixer is set to line level otherwise your audio may clip or sound distorted.

Q: 7. Are the XLR variants phantom powered? Do I still need to recharge the receiver?

A: No it cannot. Phantom power wont hurt the unit, but it won't help either. You can however power the wireless via the USB-C via a power supply or via the USB port of your mixing console, if it sports one.

Q: 8. I see the comment that the digital system is "not backwards compatible" with analog systems. Can you clarify this? Obviously, I wouldn't expect a digital transmitter to work with an analog receiver, but is there any reason a digital system can't be added into a venue that is already using analog gear?

A: This system's components are not interchangeable or interoperable with other Sennheiser analog wireless components. But certainly the Sennheiser EW-D SK BASE SET Digital Wireless Microphone System with Bodypack, No Mic (Q1-6: 470 to 526 MHz) BH #SESKBASEQ16 can interface with other analog products like mixers, amplifiers, microphones etc.

Q: 9. HI, I saw a video about the avx system and the guy said that there is interfearence with the mke-2 mic. Does this system do the same, or it makes clean audio with mke-2 lav mic?

A: According to Sennheiser, both systems, the XSW Digital as well as the AVX, are fully compatible with the MKE-2. As for the video you saw, perhaps it was an defective unit. Sennheiser even offers an AVX system that is packaged with the MKE-2

Q: 10. Can the rechargeable battery be replaced by the user?

A: No it cannot. Now if your reason for wanting to do so is to make sure you always have enough battery for a long gig, you can use the charging port to power the system while in use, either through a power supply or through a power-bank which is commonly used for Cell phones and etc.