Sennheiser SR IEM G4-A1 — Wireless IEM Stereo Transmitter
SR IEM G4-A1 Overview
The Sennheiser SR IEM G4-A1 is a professional wireless stereo in-ear monitor transmitter built for demanding live sound environments. Part of Sennheiser’s established Evolution Wireless G4 platform, it delivers reliable RF performance in the A1 frequency band for touring engineers, monitor engineers, and system integrators who require consistent, interference-free IEM signal transmission. Its design prioritizes ease of setup and integration into existing G4 ecosystem workflows. This transmitter is well-suited for houses of worship, touring productions, broadcast stages, and fixed venue installations.
The SR IEM G4-A1 is built for seamless rack integration and straightforward frequency coordination, making it a practical choice for engineers managing complex multi-channel monitor systems.
Key Features
- Evolution Wireless G4 Platform — Part of Sennheiser’s proven G4 series, ensuring compatibility with G4 IEM bodypack receivers and accessories
- A1 Frequency Band — Operates in the A1 band, providing defined frequency range options for regional RF coordination
- Stereo Transmission — Delivers full stereo IEM signal transmission for immersive, professional monitoring mixes
- Rack-Mount Form Factor — Designed for standard rack integration, supporting clean, organized stage and FOH rack builds
- Live Sound Optimized — Engineered specifically for the clarity and control demands of live monitoring applications
- G4 Ecosystem Compatibility — Integrates with Sennheiser’s broader G4 wireless infrastructure for scalable system builds

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