Instruction manual
Starting up and operating devices of the ew IEM G4 series.
- EK IEM G4 diversity receiver
- SR IEM G4 stereo transmitter
  - Product overview
  - Connecting/disconnecting the SR IEM G4 with/from the power supply
  - Creating a data network
    You can monitor and control one or more SR IEM G4s via a network connection using Sennheiser Wireless Systems Manager (WSM) software.
  - Connecting audio signals
    You can connect mono or stereo signals via the two input sockets BAL AF IN L(I) and BAL AF IN R(II).
  - Daisy chaining audio signals
  - Connecting antennas
  - Installing the SR IEM G4 in a rack
  - Switching the SR IEM G4 on and off
  - Using the headphone output
  - Configuring the audio channels (mono/stereo)
  - Deactivating the RF signal (RF mute)
  - Lock-off function
  - Displays on the SR IEM G4 display panel
    You can view the following information on the transmitter display.
  - Buttons for navigating the SR IEM G4 menu
  - Menu structure
  - Setting options in the menu
- AC 41 antenna combiner
- Establishing a radio link
- Synchronizing devices
  You can synchronize ew IEM G4 series transmitters and receivers via the transmitter’s and receiver’s infrared interfaces.
- Cleaning and maintenance
  Note the following information when cleaning and maintaining products.

Configuring the audio channels (mono/stereo)

You can configure audio channels in the Mode menu item. You can select either Stereo or Mono:

Select Stereo when you want to send a separate audio signal on channel I and channel II (e.g. channel I = audio signal of the moderator/musician, channel II = sum of all audio signals).
The moderator/musician then has the option to adjust the volume distribution on his or her receiver as needed.

In Stereo mode, you can receive the two input signals either as a mixed mono signal or as a stereo signal.
To do so, you must select Focus or Stereo mode on the EK IEM G4 receiver.
Select Mono when you only want to transmit one channel. The signal of the left audio input BAL AF IN L is used.

In Mono mode, you have to deactivate the pilot tone evaluation on your EK IEM G4 receiver. This is the only way to ensure that your receivers will transmit the same signal on channel I and channel II.