Sennheiser AC 41-US — Active Antenna Combiner for IEM Transmitters
AC 41-US Overview
The Sennheiser AC 41-US is a professional active antenna combiner engineered for use with in-ear monitor transmitter systems. Designed to consolidate antenna infrastructure, it allows multiple IEM transmitters to share a single antenna pair, reducing the number of antennas required on stage or in a rack environment. The AC 41-US is purpose-built for touring companies, houses of worship, broadcast facilities, and venues where clean RF distribution and simplified antenna management are critical to system reliability. System integrators and RF engineers working with Sennheiser wireless ecosystems will find it a practical solution for scaling IEM deployments.
By centralizing antenna connections, the AC 41-US supports more organized rack builds and reduces the physical footprint of antenna infrastructure across demanding multi-transmitter installations.
Key Features
- Active Antenna Combining — Actively combines antenna signals from multiple IEM transmitters, maintaining signal integrity across the combined output
- Reduced Antenna Infrastructure — Allows multiple transmitters to share a single antenna pair, minimizing cable runs and antenna placement complexity
- Rack-Ready Design — Built for integration into professional rack systems, supporting clean and organized wireless infrastructure builds
- Sennheiser Ecosystem Compatibility — Designed for use within Sennheiser’s professional wireless IEM transmitter lineup for reliable system-level integration
- Scalable RF Distribution — Supports expansion of IEM transmitter counts without proportional increases in antenna hardware
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