The Shure UA221DB-RSMA is an antenna splitter kit built for GLXD4R+ wireless receiver systems that need a cleaner, more efficient antenna layout. By dividing one incoming antenna signal into two outgoing paths, it allows two GLXD4R+ receivers to operate from a single pair of antennas instead of requiring separate antenna sets for each receiver. This can help simplify rack wiring and reduce the amount of antenna hardware needed in compact professional AV setups.

Designed for use with Shure UA8-2.4-5.8 omnidirectional antennas and PA805DB-RSMA directional antennas, the kit supports flexible deployment choices for installed audio, portable production racks, and managed event systems. Each package includes two UA221DB-RSMA splitters, four coaxial cables, and attaching hardware, giving integrators and audio teams the core components needed to connect and mount the system properly.