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Sennheiser EW300IEMG3 Wireless In-Ear Monitor System

Sennheiser EW300IEMG3 Wireless In-Ear Monitor System

Gear Up & Cash In! For a limited time, when you purchase a new wireless Sennheiser ew300G3 system, trade in your old system and get $150! This offer ends December 31, 2016!

Hear better, perform better.Sennheisermonitoring systems are trusted by professionals worldwide and now are better than ever. Featuring an adaptive-diversity receiver, the receiver pack uses the headphone cable as a secondary antenna for flawless reception. Ear-canal phones, with various ear-fitting pads for an individual fit, reproduce the signal from the adaptive diversity receiver precisely and faithfully. Pass-through outputs allow easy splitting of the input signal to travel to other devices. Lastly, the entire set can be monitored and remotely controlled with Sennheiser's "Wireless Systems Manager" software due to the built-in Ethernet port on the stereo transmitter.

  • Sturdy metal housing (transmitter and receiver)
  • 42 MHz bandwidth: 1680 tunable UHF frequencies for interference-free reception
  • Enhanced frequency bank system with up to 16 compatible frequencies
  • Ethernet port for connecting to the Wireless Systems Manager (WSM) software for control via computer - this delivers a good overview of monitoring and professional data management for multi-channel systems
  • Adaptive diversity for high reception quality
  • Pilot tone squelch for eliminating RF interference when transmitter is turned off
  • Automatic frequency scan feature searches for available frequencies
  • Enhanced AF frequency range
  • Increased range for audio sensitivity
  • Wireless synchronization of receiver parameter from transmitter
  • User-friendly menu operation with more control options
  • Illuminated graphic display
  • Auto-Lock function avoids accidental changing of settings
  • HDX compander for crystal-clear sound
  • Receiver feature battery indicatation in 4 steps
  • Mute function for transmitter
  • HiBoost, adjustable limiter, stereo/focus mode, balance in receiver
  • Contacts for recharging the optional BA 2015 accupack directly in the receiver
  • Wide range of accessories adapts the system to any requirement
  • Compander: HDX
  • Audio-XLR connector: 2 x XLR-3 jack
  • Presets: 16
  • Frequency response: 25 - 15000 Hz
  • THD, total harmonic distortion: < 0,9 %
  • Signal-to-noise ratio: > 90 dB(A)
  • RF frequency range: 516...865 MHz
  • RF output power: 10/30 mW
  • Transmission/receiving frequencies: 1680
  • Switching bandwidth: 42 MHz
  • Peak deviation: +/- 48 kHz
  • In compliance with: ETS 300422, ETS 300445, CE, FCC
  • Operating time: 4 - 6 h
  • Modulation: FM, MPX-stereo
  • Antenna connector: BNC
  • Headphone connector: > 100mW (32 Ω)
  • Input voltage range: + 22 dBu max
  • Audio-Output-Power: 100 mW (32 Ω)
  • Operating voltage (stand alone): 12 V DC nom.
  • Transmitter
    • Dimensions: 212 x 202 x 43 mm
    • Weight: 1100 g
  • Receivers
    • Dimensions: 82 x 64 x 24 mm
    • Weight: ~ 160 g

Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change. For more information, call the FCC at 1-888-CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCC's wireless microphone website at


  • 1 SR 300 G3 stereo transmitter
  • 1 EK 300 G3 stereo diversity receiver
  • 1 IE 4 earphones
  • 1 GA 3 rack mount
  • 1 NT 2 power supply unit
  • 1 antenna
  • 2 AA size batteries
  • Operating instructions

Beginning in March of 2016, the FCC has been working to reallocate and auction another significant portion of the UHF spectrum (approximately 566MHz to 698MHz) that we have all been using, license free, for our wireless microphone systems, com systems, IEM systems, etc.

This is not an empty threat, as the Reverse Auction to decide the value of that spectrum, ended this summer and the Forward Auction to take official bids for that spectrum are in their second round as of this writing. I say second round, because the FCC did not come anywhere close to realizing the proceeds required to meet the perceived value of the 126MHz spectrum originally made available in the first round.

In round 2, the FCC has reduced the spectrum bidding to a smaller 114MHz and will start all over again. This will take months to complete, and will probably continue through early 2017. This is good news because we have a bit more time. If the FCC fails to meet these goals, the question is not “if” they still intend to reallocate a large portion of the UHF spectrum, but “when” it will occur.

All this being said, if you intend to purchase wireless systems in the UHF spectrum anytime in the near future, your safest bet is to stay within the 470-566MHz range until we actually have an outcome. If you are planning on purchasing or have any questions, please feel free to contact us.

-Tim LaPrade, Account Manager,