The Sennheiser EW 100 G4-Ci1 is an easy-to-set-up rackmount wireless system that brings reliable high-quality, wireless sound to guitar and bass players performing in small to medium-sized venues including concert stages, houses-of-worship, theaters, and clubs.

The EW 100 G4-Ci1 features a true diversity, half-rack receiver housed in a rugged, full-metal chassis. The receiver's auto-scan function searches a wide 42 MHz UHF tuning range with 1680 selectable frequencies available, seeking out a clean, interference-free channel for your audio transmission. The onboard guitar tuner is an added convenience for musicians.

This system includes a Ci 1 cable that connects your instrument to the lightweight bodypack transmitter. The 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 channels can operate simultaneously in the same space, with the receivers linked together for fast, multi-channel frequency setup.

The EW 100 G4-Ci1 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 Guitar and Bass Players    Ci 1 Instrument Cable    Lightweight Bodypack Transmitter    True-Diversity Rackmount Receiver    1680 Auto-Scan Frequencies    8-Hr AA Batteries    Expandable to 12 Mic Channels/330' Range

The 4' long Ci 1 cable connects the 1/4" output of your guitar or bass to the bodypack transmitter's locking 3.5mm input.

The adjustable input sensitivity on the transmitter accommodates instruments with passive and active electronics, and even line-level audio.

The rugged, all-metal transmitter features a programmable 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 SK 100 G4 is powered via two AA batteries or a rechargeable BA 2015 Accupack battery (available separately). Side contacts allow for recharging the Accupack without removing it from the transmitter—requires the L 2015 quick-charging unit (available separately).

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. 

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 variety of lavalier, headset, and handheld 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 headset mic provides exceptional clarity in spoken-word applications.
• The SKM 100 handheld transmitter is available with three different mic capsule options for presenters and performers who prefer the flexibility of a handheld microphone.

Related Questions and Answers

Q: 1. What is the size and weight of the package?

A: The package for the Sennheiser EW 100 G4-835-S (BH #SEEW100G48A1) weighs 6.575 lbs and is 16.1 x 12.7 x 3.3" (LxWxH).

Q: 2. Can the speaker feel the mic being switched to mute or is it a soft touch switch?

A: The physical mute button is located on the top edge of the transmitter ad can eaily be felt by the user.

Q: 3. 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: 4. What rechargeable battery pack does this take?

A: The transmitter uses the Sennheiser BA2015G2 battery pack and L2015G2 charging station. https://www.bhphotovideo.com/c/product/324393-REG/Sennheiser_BA2015G2_BA_2015G2_Rechargeable_Battery.html https://www.bhphotovideo.com/c/product/1367658-REG/sennheiser_k2015_charging_station_with.html

Q: 5. Should I get a different frequency if want to get two?

A: That is not necessary. The bodypack 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. Fast Multi-Channel Setup for Expanded System 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.

Q: 6. Will this receiver work with the ew 100 G3 Transmitter?

A: The ew 100 -835 G4 is a complete wireless system that includes the EM 100 G4 receiver and an SKM 100 G4 handheld transmitter. The G4 series is backwards compatible for use with older G3 series components, as long as the frequency bands are the same for both components. The EM 100 G4 receiver can also be used with a bodypack transmitter such as the SK 100 G4 and G3 models to connect a lavalier or headset microphone. Only one transmitter can be used at a time with the receiver and the operating frequencies must match. Please contact us if you would like assistance.

Q: 7. Can I use two microphones with this?

A: Only one handheld mic can be used , if you need a second mic you will need to purchase a second unit

Q: 8. Can you use this receiver with multiple wireless microphones at the same time with each independent frequency? Like using a lavalier and a wireless microphone at the same time.

A: No. This receiver is a single channel so therefore only allows reception of one transmitter at a time.

Q: 9. What kind of rack-mount hardware is in the box? How does it compare to Sennheiser GA-3?

A: The Sennheiser EW 100 G4-835-S Wireless Handheld Microphone System with MMD 835 Capsule contains a rackmount kit, which can be seen in the product image here: https://bhpho.to/4cpJGSy

Q: 10. Can the Sennheiser SK 100 G4 transmit to multiple 100 g4 receiverers on the same frequency. one transmitter to 2 - receivers?

A: Yes, the Sennheiser SK 100 G4 Wireless Bodypack Transmitter can simultaneously transmit audio to multiple EW 100 G4 Series Wireless Receivers that are tuned to the same frequency.