The Sennheiser EW 300 G4-BASE SK-RC is an easy-to-use rackmount wireless microphone system geared for business and educational applications. It offers professional-level features for enhanced reliability and control, including variable RF power, a wide tuning range, Ethernet networking for multichannel setups, and an intuitive interface with an OLED display and jog wheel. The system delivers high-quality, reliable audio to presenters, meeting participants, educators, and lecturers working in conference centers, schools, and universities.

The EW 300 G4-BASE SK-RC includes a true-diversity, half-rack receiver housed in a rugged, full-metal chassis. The receiver's auto-scan function searches a 50 MHz UHF tuning range with 2000 selectable frequencies available, seeking out a clean, interference-free channel for your audio transmission. The high-contrast OLED display with automatic dimming, along with a convenient jog wheel allow you make quick adjustments, even in low-light situations.

The remote-controllable SK 300 G4-RC bodypack transmitter features a locking 3.5mm connector with an adjustable input level to accommodate the compatible lavalier or headset microphone of your choice. The transmitter provides up to 8 hours of operation on two AA batteries, with a selectable 10/30/50mW RF power output for overcoming interference in difficult RF environments. The transmission range is up to 330'.

The Ethernet connection on the receiver supports Wireless Systems Manager (WSM) and Sennheiser Control Cockpit software for management, monitoring, and advanced frequency coordination in multichannel setups. Up to 32 wireless mics can operate simultaneously in the same space.

The EW 300 G4-BASE SK-RC is backward-compatible with all 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 100 and EW 500 systems.

For Presenters and Educators    Use with Lavalier or Headset Mic    Remote-Ready Bodypack Transmitter    True-Diversity Rackmount Receiver    2000 Auto-Scan Frequencies    Selectable 10/30/50mW RF Power    High-Contrast OLED Display    Ethernet for Control Cockpit Software    8-Hr AA Batteries    Expandable to 32 Mic Channels/330' Range

The rugged, all-metal SK 300 G4-RC transmitter is equipped with a 2.5mm jack to connect the RMS 1 remote mute switch (available separately). The switch adds easy-access push-to-talk and push-to-mute functions to your transmitter.

The 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 300 G4-RC 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 300-500 G4 receiver offers a high-contrast, black-&-white OLED display. The display uses a streamlined menu system with a jog wheel and dedicated Escape button for quick menu navigation. The display also shows battery status of the associated transmitter.

The system features 20 fixed frequency banks with up to 32 compatible frequency presets and 6 user banks with up to 32 user-programmable frequencies.

To prevent interference, the EM 300-500 receiver's true-diversity reception compares incoming signals on two independent receiver circuits to ensure optimal RF quality.

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.

A headphone output with volume control is conveniently located on the front panel, allowing you to monitor your audio signal.

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.

For public address applications, the EM 300-500 G4 receiver can be integrated directly into the LSP 500 PRO wireless speaker system.

The receiver features an Ethernet (RJ45) port for network-based remote monitoring and control using the Sennheiser Wireless System Manager (WSM) software (free download available separately). Using your Mac/Windows computer, the software allows you to quickly coordinate frequencies in multichannel setups, display audio levels at the transmitter, battery status, and more.

Alternately, you can use the Sennheiser Control Cockpit software (free download available separately), designed to make the daily routines and workflows associated with the use of large wireless microphone setups in corporate and campus settings far easier. Wireless systems can be centrally controlled and monitored in real time, easily via a web browser on a smartphone, tablet, or laptop.

The detachable antennas with BNC sockets allow you to create a larger system using up to four EM 300-500 G4 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 ME 2-II lavalier mic and the, headworn SL Headmic 1 both provide exceptional clarity in spoken-word applications.
• The SKM 300 G4 handheld transmitter is available with a multitude of mic capsule options for presenters and performers who prefer the flexibility of a handheld microphone.

Related Questions and Answers

Q: 1. 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: 2. What are the biggest differences between this and the AVX system with the MKE2?

A: The biggest difference is that this system is UHF and the AVX system is digital. The Sennheiser ew 512P G4 system features a very wide band of UHF frequencies- up to 88 MHz bandwidth with 3250 selectable frequencies; high RF output power; and a range of over 300 feet. The AVX systems feature superior audio quality; a unique receiver configuration with an XLR connection; easy set up; and less chance of interference from TV broadcasts.

Q: 3. Can I split the AF OUT of the EK500 with a 'Y' cable, run one side to my FX6's XLR, the other, to an onboard mini recorder? Thx.

A: Yes, you can use a Y-cable to split the output from a Sennheiser EK 500 Receiver to send the audio to two different devices, like two separate audio recorders, cameras, mixers, etc. You can use a cable like the Saramonic SR-UM10-CC1 3.5mm TRS to Two XLR Male Output Y-Cable for Wireless Mic Systems (B&H # SASRUM10CC1), or use an adapter like the ALZO 3.5mm Female to Dual XLR Male Stereo Microphone Adapter Cord for Pro Camcorders (B&H # AL130) together with the 3.5mm receiver output cable and, if needed, additional XLR cables to extend the length.

Q: 4. Is it possible to use both the handheld and the lavaliere at the same time with the one receiver?

A: No, only one transmitter at a time. For two wireless transmitters to work simultaneously you will need an additional system and each system will have to be tuned to different frequencies.

Q: 5. Hi will it work with the G3 recever? Thankz

A: Yes it will work with the G3 system, just make sure to match the frequency!

Q: 6. Purchasing two sets of this, would it be smart to buy one of each frequency range? Will both be good in NYC?

A: You can definitely use two of the Sennheiser EW 512P G4 Camera-Mount Wireless Omni Lavalier Microphone Systems that operate on the same frequency band in New York City. The system has 3,520 auto-scan frequencies for the system to select from to transmit audio and up to 32 systems can be used simultaneously on the same band.

Q: 7. The Ew500 G4 uses Lan conection though a switch to a computer but can it be used as a Dante connection. What I would like to do is record each chanel to a DAW on the computer?

A: Hi Mark - the Evolution Wireless series (including the EW 500 G4) in not Dante™ enabled; there are third party options that could enable you to take the analog output signal from the system to convert to a Dante™ connection or you could consider looking into the Digital 6000 series.

Q: 8. Will this work with the MixPre-10 II?

A: Yes, the Sennheiser EW 512P G4 Camera-Mount Wireless Omni Lavalier Microphone System (GW1: 558 to 608 MHz) will work well alongside the Sound Devices MixPre-10 II 10-Channel / 12-Track Multitrack 32-Bit Field Recorder.

Q: 9. How to attach the mirror less camera or gimbal? Photos only show a belt clip on back side.

A: The Sennheiser EW 512P G4 Camera-Mount Wireless Omni Lavalier Microphone System includes the Sennheiser CA2 Shoemount Adapter for EW Series Camera Mountable Receivers, which allows mounting onto a shoe slot.

Q: 10. Will the mic that comes with this (Sennheiser EW 512P) work with the AVX transmitter?

A: Yes. The MKE2 mic is an excellent mic and will work with both the EW512 P and AVX.