The Sennheiser AC 41-EU is an active antenna combiner designed for multi-transmitter wireless systems. It allows up to four wireless transmitters (such as Sennheiser EW G4 and EW IEM units) to share a single antenna, reducing cabling complexity and improving RF organisation in professional audio setups. It also provides integrated DC power distribution through the antenna cables, meaning compatible transmitters do not require separate power supplies. The AC 41-EU is well-suited for live performance racks, broadcast installations, rental systems, and touring rigs.
Key Features
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Supports up to four transmitters via one shared antenna
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Wide UHF frequency coverage: 470–870 MHz (EU version)
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Built-in DC power distribution via BNC antenna cables
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Reduces the need for multiple antennas and power supplies
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50-ohm RF design for compatibility with professional wireless systems
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Half-rack size for compact installation
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Ideal for IEM transmitters and EW G4 systems
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Robust metal housing for continuous touring and professional use
Technical Specifications
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Frequency Range: 470–870 MHz
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Power Distribution: Via BNC antenna cables to compatible transmitters
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Maximum Total Current Draw: Up to approximately 3.4 A
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RF Impedance: 50 ohms
