Sennheiser AC 3 Active Antenna Combiner 4:1 with DC Power Distribution

With the Sennheiser AC 3, up to four wireless monitoring transmitters from the ew series can be operated using one shared antenna. Power is supplied to the SR 300 IEM G3 transmitters over the BNC cables, eliminating separate power supplies for the transmitters. AC 3 requires a NT 3-1 plug-in adapter (not included) for operation.