The Sennheiser EW-D SK Wireless Microphone System Bodypackcombines 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.

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. 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: 2. Hello. I want to use this transmitter with a Sennheiser XS receiver (EM-XSW1. This will be for an event in a fairly large venue (an ice rink). Will this combination have enough range? Will it cover the distance without adding static or white noise? Thanks.

A: The Sennheiser SK-XSW-A Bodypack Transmitter and EM-XSW1 Wireless Receiver can operate within a maximum range of up to approximately 200 to 250 feet line of sight. With the EM-XSW2 Wireless Receiver which has external antennas you can get a bit more distance.

Q: 3. I want to mic a maximum of 12 performers with EW D. Do I need a variety of frequency bands? (4 each to cover 470 -600Mhz?)

A: You will be able to have a maximum of 90 transmitters per band, so if there is not significant interference in your area it should be alright to keep the same band for all systems.

Q: 4. Does the transmitter provide phantom power for mics like MKH 8050?

A: No. The Sennheiser EW-D SK Digital Wireless Bodypack Transmitter (R4-9: 552 to 607 MHz) will only supply a small amount of power for lavalier and headset microphones. It cannot supply 48V phantom power for larger condenser micrphones.

Q: 5. what accu batteries can I use for Sennheiser SK 100 G4 transmitter ?

A: The below are compatible: https://www.bhphotovideo.com/c/product/324393-REG/Sennheiser_BA2015G2_BA_2015G2_Rechargeable_Battery.html https://www.bhphotovideo.com/c/product/324394-REG/Sennheiser_L2015G2_Charging_Station.html Power Requirements Battery Battery Type 2 x AA (Included) 1 x Sennheiser Accupack (Not Included, Replaceable)

Q: 6. I need to replace an AVX transmitter, will this pair with any AVX receiver?

A: Yes, this Sennheiser SK AVX Bodypack Transmitter is compatible for use with Sennheiser EKP AVX Receivers.

Q: 7. Will this work with an older EW 500 G3 receiver (if they're both set to the same frequency)?

A: Yes, the Sennheiser SK 500 G4 is compatible with the G3 series as long as there is overlap in the frequency blocks and transmitter & receiver can be set to the same frequency.

Q: 8. I own one but the spring in back of it broke, Can I get a replacement ??

A: BH #SE543660 is the appropriate replacement belt clip for the Sennheiser SK 100 G4 Wireless Bodypack Transmitter.

Q: 9. Can I detach the antennas and put a half wave length antenna on my sound bag?

A: No. The antenna for the Sennheiser EW-D SK Digital Wireless Bodypack Transmitter is not swappable for an external antenna.

Q: 10. Can I use one receiver for several AVX transmiters? Or do I need an audio mixer?

A: This is one transmitter to one receiver.