The Sennheiser EW 100 G4-845-S is an easy-to-set-up rackmount wireless handheld microphone system that brings high-quality, reliable audio to presenters, clergy, lecturers, and performers working in business and educational settings, houses-of-worship, theaters, or on musical stages.

The EW 100 G4-845-S features a true diversity, half-rack receiver housed in a rugged, full-metal chassis. The receiver's auto-scan function searches a wide 46 MHz UHF tuning range with 1840 selectable frequencies available, seeking out a clean, interference-free channel for your audio transmission.

This system includes an SKM 100 G4-S handheld transmitter equipped with an interchangeable MMD 845 dynamic supercardioid microphone capsule optimized for speech. The handheld transmitter provides up to 8 hours of operation on two AA batteries, with a fixed 30mW RF power output and a transmission range up to 330'. Up to 12 wireless mics can operate simultaneously in the same space, with the receivers linked together for fast, multi-channel frequency setup.

The EW 100 G4-845-S is backward-compatible with previous evolution systems. You can mix and match G4/G3/G2/G1 receivers or bodypack, handheld, and plug-on transmitters. It is also compatible with EW 300/500 systems.

For Presenters and Performers    MMD 845 Dynamic Supercardioid Capsule    Handheld Transmitter with Mute Switch    Interchangeable Capsule Design    True-Diversity Rackmount Receiver    1840 Auto-Scan Frequencies    8-Hr AA Batteries    Expandable to 12 Mic Channels/330' Range

The MMD 845 dynamic capsule features a supercardioid polar pattern that greatly minimizes background noise and feedback.

The rugged, all-metal handheld transmitter features a mute function and can be locked out to prevent accidental changes during a performance. A backlit LCD displays essential information and provides fast menu access. The transmitter syncs to the receiver via infrared with a quick press on the Sync button.

The SKM 100 G4-S is powered via two AA batteries or a rechargeable BA 2015 Accupack battery (available separately). An LA 2 charging adapter (available separately) allows for recharging the Accupack without removing it from the transmitter—requires the L 2015 quick-charging unit (available separately).

The transmitter's interchangeable capsule design allows you to use a variety of optional dynamic and condenser mic capsules, with pickup patterns ranging from wide omnidirectional to narrow supercardioid —capsules include the MMD 835, MMD 845, MME 865, MMD 935, MMD 945, and MMD 42.

The robust, metal EM 100 receiver offers a high-contrast, black and white LCD. The display uses a streamlined menu system with a dedicated Escape button for quick menu navigation and shows battery status of the associated transmitter.

The system features 20 fixed frequency banks with up to 12 compatible frequency presets and 1 user bank with up to 12 user-programmable frequencies.

To prevent interference, the EM 100 receiver's true-diversity reception compares incoming signals on two independent receiver circuits to ensure optimal RF quality. To ensure crystal clear audio, Sennheiser's proprietary HDX compander technology maximizes the microphone's signal-to-noise ratio, while avoiding RF noise.

The built-in equalizer enables you to change the frequency response of the output signal; you can reduce the bass range and boost the treble range. The receiver also offers an adjustable output level range of 48 dB to match the audio input of your mixing board or PA system. Musicians will appreciate the built-in guitar tuner.

The back panel houses a balanced XLR output as well as an unbalanced 1/4" output. A kit is included for rackmount installation. The unit comes with a universal power supply and EU, US, UK, Korea, Australia, and China adapters.

To simplify and speed up your workflow, two RJ10 data networking ports allow you to daisy-chain up to 12 receivers and quickly perform a frequency setup for the entire multi-channel system via the Easy Setup function.

If you assign the frequencies manually, you can expand the setup to accommodate a maximum of 20 receivers. An RJ10 cable is included.

The detachable antennas with BNC sockets allow you to create a larger system using up to four EM 100 receivers connected to a single pair of remote antennas. This setup requires the ASA 214 active antenna splitter (available separately).

Adding a pair of A 1031-U omnidirectional antennas or a pair of A 2003 UHF directional antennas increases the range of your system and offers increased protection against interference.

Sennheiser offers a bodypack transmitter with variety of lavalier and headset microphone options to adapt your EW system as your needs evolve.

• The discrete ME 2-II and MKE 2 lavalier mics provide exceptional clarity in spoken-word applications.
• The lightweight ME 3-II is a comfortable, durable headset microphone for active presentations.
• The Ci 1 instrument cable lets you connect the bodypack transmitter to a guitar or bass.

Related Questions and Answers

Q: 1. does the receiver work with both of the plug in and the body pack?

A: It works with both transmitters however it does not function with both at the same time, is either the plug on transmitter or the lavalier bodypack one at the time.

Q: 2. What is the best frequency for primary use in Kansas City area? How long will this new mic system likely be legal to use per FCC anticipated rulings? I realize this is a bit of fortune telling, but just want to get a feel for it.

A: Any of the frequency bands will work well in Kansas City. The FCC has not announced any upcoming changes.

Q: 3. Would this lavalier mic work in europe? italy?

A: The wireless systems that are sold by B&H are intended for use in North America without a license. The FCC regulations vary in different countries, so a license may be required. The A1: 470 to 516 MHz, A: 516 to 558 MHz, and G: 566 to 608 MHz frequency bands for the Sennheiser EW 112P G4 Camera-Mount Wireless Omni Lavalier Microphone System are all able to be used in Italy, however, a license is required. As additional options for a Sennheiser wireless system that you can use in Italy without a license, you may want to consider the Sennheiser AVX-ME2 SET Digital Camera-Mount Wireless Omni Lavalier Microphone System (B&H #SEAVXME2SET4) or the Sennheiser XSW-D LAVALIER SET Digital Wireless Omni Lavalier Microphone System (B&H # SEWXSLSTR). The AVX system operates on the 1.9 GHz frequency band and includes a plug-in receiver which can be connected to a 3.5mm mic input using the included XLR to 3.5mm cable. The XSW-D system operates on the 2.4 GHz frequency band and can also be used with an XLR female to 3.5mm cable to connect to a 3.5mm mic input. Both systems include the Sennheiser ME 2 II Lavalier Microphone, which is the same microphone that is included with the EW 112P G4 system.

Q: 4. hi, How should I choice the Freq?

A: The receiver has a scan new list menu item, when it has found clear freq, you can go to sync menu, hold both the transmitter and receiver facing each other and it sync, its in the manual

Q: 5. +48?

A: That comes with an SKP100 plug-on transmitter which would only be compatible with dynamic microphones. For compatibility with condenser microphones that require phantom power, you need the SKP500 plug-on transmitter instead. https://www.bhphotovideo.com/c/product/1385722-REG/sennheiser_ew_500_film_g4_gw1_ew_500_film_g4.html

Q: 6. What is the difference between A1, A, and G? What should I use if I'm filming mainly in Los Angeles?

A: Sennheiser breaks up the legal frequency range for wireless microphones of 470-608 MHz into three blocks. I would recommend the A1 block for Los Angeles, which is 540-516 MHZ. But all of the three groups have 1680 frequencies, and the ability to auto scan to find a clean channel.

Q: 7. Will the plug-on wireless transmitter attach properly to a side-exit XLR boom pole (particularly K-Tek Avalon), or will it not attach firmly enough, please? Would it be necessary to buy something like a K-Tek KlassicPro upgraded to their KPTA plug-on TX adapter? Is there another brand/model of boom pole that would suit the Sennheiser plug-on TX?

A: The SKP 100 G4 Plug-On Transmitter within the Sennheiser EW 100 ENG G4 Camera-Mount Wireless Combo Microphone System may not attach firmly to a side-exit XLR connection on a boompole. The transmitter features a fastening collar to tighten however it is uncertain whether this is sufficient to prevent the connection from loosening. The KPTA Sidekick Plug-On may help in that it keeps the transmitter in a more ideal orientation.

Q: 8. What is best frequency range for use in Middle East countries?

A: For the best frequencies of the Sennheiser EW 100 ENG G4 Camera-Mount Wireless Combo Microphone System to use in different international locations, we recommend referencing Sennheiser's International Frequency Advisor (SIFA): https://bit.ly/3zldCN1

Q: 9. Will the condenser headset work with this system?

A: The SK100 bodypack transmitter will support condenser headset microphones, that use the 3.5mm locking connection, wired for Sennheiser. Here is an example: https://bhpho.to/3BUpB6s

Q: 10. has anyone use Sennheiser EW 112P G4 to send line level audio from a computer audio out to a mixer board line level in stereo i know i will need a 3.5 to 3.5 mm for the transmitter and 3.5 to RCA for the mixer board line in?

A: While the Sennheiser EW112PG4 can be used to transmit line level audio wirelessly, it will only send a single channel of audio. You can mono sum the output of the computer using this device, BH #RALTIBLOX , use the BH# SECL2 cable for xlr into the transmitter, and go single XLR out into the mixer. If you need stereo sends, you would need two transmitters and two receivers for the 2 channels of audio. Here a system, more designed for stereo transmission, BH #ALSTEALTHWRL.