Sennheiser SR IEM G4 Stereo Transmitter (A: 516 to 558 MHz)

The Sennheiser 509618 is a stereo transmitter designed to deliver clear and reliable audio for live performances, theater productions, and rehearsals. It comes in a durable half-rack metal housing that can withstand the demands of professional use, while the bright OLED display makes it easy to navigate and adjust settings like frequency and monitoring options. This transmitter is built to work seamlessly with Sennheiser’s Evolution G4 wireless systems, covering a frequency range from 516 to 558 MHz and offering a wide bandwidth of 42 MHz with 1680 selectable frequencies, which helps avoid interference in busy radio environments.

With support for 16 compatible channels and infrared synchronization between transmitter and receiver, setting up and managing your wireless system becomes straightforward and flexible. The transmitter includes two balanced XLR-1/4" combo inputs, allowing connection to a variety of audio sources, and a 1/4" headphone output for real-time monitoring with excellent clarity. It also works with Sennheiser’s WSM software, enabling remote control and frequency coordination to keep your system running smoothly during complex setups.

Designed for professional audio environments, the SR IEM G4 transmitter offers adjustable RF output power up to 50 mW, so you can tailor the signal strength to your venue size and comply with local regulations. Its transmission range extends up to 100 meters, making it suitable for medium to large stages or rehearsal spaces. Whether you’re a sound engineer managing multiple channels or a performer needing reliable in-ear monitoring, this transmitter provides the flexibility and performance required for demanding wireless audio setups.

Highlights:

• Half-rack stereo transmitter with sturdy metal housing and easy-to-read OLED display
• Frequency range from 516 to 558 MHz with 42 MHz bandwidth and 1680 selectable frequencies
• Supports 16 compatible channels and infrared synchronization with receivers
• Two balanced XLR-1/4" combo inputs plus 1/4" headphone output for real-time monitoring
• Transmission range up to 100 meters (300 feet) for reliable wireless coverage
• Compatible with Sennheiser WSM software for remote frequency management and coordination
• Adjustable RF output power up to 50 mW to suit different environments and regulations