Sennheiser AC 41-US Active Antenna Combiner with DC Power Distribution for IEM Transmitters

4-to-1 active antenna combiner with DC power distribution for Sennheiser IEM transmitter racks

The Sennheiser AC 41-US is an active antenna combiner that routes up to four IEM transmitter outputs through a single antenna while also distributing DC power to the connected transmitters. This dual-function design simplifies IEM rack wiring by combining both antenna consolidation and power distribution into one device, reducing the total component count and cable complexity in the wireless rack.

The AC 41-US is supplied as a complete kit with one NT 3-1-US power supply and four BNC cables, providing everything needed to connect four IEM transmitters to a single shared antenna. Active combining ensures that each transmitter's output is isolated from the others, preventing intermodulation and maintaining clean RF performance across all four channels.

Key Features

• 4:1 active antenna combining for up to four IEM transmitters
• DC power distribution to connected transmitters via the combiner
• Includes NT 3-1-US power supply and four BNC cables
• Active isolation between combined channels
• BNC connections for all inputs and combined output
• US-version power supply for North American deployments

Professional Applications

Commonly deployed in church, house of worship, and professional AV environments.

• IEM transmitter racks for touring and event productions
• Worship and theater IEM systems with multiple performers
• Broadcast IFB and cue-feed transmitter consolidation
• Compact IEM deployments where space and cable count are limited

Frequently Asked Questions

How many transmitters can the AC 41-US support?

The AC 41-US combines up to four transmitter outputs into one antenna. For larger IEM systems, multiple AC 41-US units or the 8-channel AC 3200-II can be used.

Does the AC 41-US work with wireless microphone receivers?

No. The AC 41-US is designed for transmitter combining, not receiver splitting. For receiver antenna distribution, use Sennheiser ASA antenna splitters.

Related Equipment and Workflow Compatibility

The AC 41-US works with Sennheiser IEM transmitters including the SR 2050 IEM and compatible models. It is commonly paired with Sennheiser directional or omnidirectional antennas connected to the combined output.

Why Professionals Use This Type of Product

• Combines antenna consolidation and power distribution in one device
• Complete kit with power supply and cables reduces procurement complexity
• Active isolation maintains clean RF performance across four channels
• Simplifies IEM rack wiring and reduces total component count

Additional Compatibility Information

The Sennheiser AC 41-US is an active 4:1 antenna combiner with DC power distribution for IEM transmitters, supplied with NT 3-1-US power supply and four BNC cables for North American deployments.