Sennheiser SR IEM G4 Stereo Transmitter (A1: 470 to 516 MHz)

Overview

The Sennheiser 509617 is a stereo transmitter from the SR IEM G4 series designed to deliver clear and reliable wireless monitoring for live performances, theater productions, houses of worship, and rehearsal spaces. Operating within the A1 frequency range of 470 to 516 MHz, it offers 42 MHz of tuning bandwidth and 1680 selectable frequencies, ensuring users can find clean channels even in crowded RF environments. With a line-of-sight range of up to 100 meters, this transmitter supports freedom of movement on stage without compromising signal quality.

Key features

• Wide tuning bandwidth and extensive frequency options provide flexibility to avoid interference in busy RF areas.
• Supports up to 16 wireless channels simultaneously, making it suitable for complex multi-performer setups.
• Bright OLED display clearly shows signal strength, audio levels, and menu options, even under intense stage lighting.
• Infrared synchronization enables quick and effortless pairing with compatible G4 bodypack receivers, speeding up setup and changeovers.
• Dual balanced XLR and 1/4-inch combo inputs accommodate stereo or dual-mono audio feeds from monitor consoles.
• Dedicated headphone jack allows engineers to monitor audio directly for last-minute checks and adjustments.
• Ethernet connectivity supports remote control and frequency coordination via Sennheiser’s Wireless Systems Manager software, enhancing management in complex installations.
• Durable metal housing and included GA 3 rackmount kit ensure robust protection and convenient half-rack installation in touring or fixed setups.

Key specs

• Frequency range: 470 to 516 MHz (A1 range)
• Tuning bandwidth: 42 MHz
• Selectable frequencies: 1680
• Maximum simultaneous channels: 16
• Transmission range: up to 100 meters line of sight
• Inputs: dual XLR and 1/4-inch combo (balanced)
• Display: OLED screen
• Power supply: 12 V included
• Form factor: half-rack metal enclosure

Connectivity and compatibility

This transmitter offers versatile input options with balanced XLR and 1/4-inch combo connectors, allowing seamless integration with a variety of monitor consoles and audio sources. The Ethernet port enables networked control and frequency management through Sennheiser’s Wireless Systems Manager software, which is especially useful in venues with multiple wireless systems. Infrared synchronization simplifies pairing with G4 bodypack receivers, making it easy to coordinate multiple channels during live events.

Performance and reliability

Built to withstand the demands of touring and professional use, the metal enclosure protects the transmitter from physical wear while maintaining a compact half-rack size for efficient rack space use. The wide tuning range and large number of selectable frequencies help avoid interference, ensuring stable and clear audio transmission. The OLED display provides real-time feedback on signal and audio levels, helping engineers maintain optimal performance throughout a show.

Ideal uses and environments

This transmitter is well suited to live music performances, theater productions, houses of worship, and rehearsal rooms where dependable wireless monitoring is essential. Its ability to support multiple channels simultaneously and coordinate frequencies remotely makes it a strong choice for complex setups involving several performers or bands. The robust design and flexible connectivity also make it a practical option for both touring professionals and fixed installations.