Shure PA821BX Eight-channel Antenna Combiner, 865-960 MHz

The Shure PA821BX is an eight‑channel antenna combiner designed for professional wireless in‑ear monitor systems in the 865–960 MHz frequency range. It allows multiple Shure PSM transmitters to share a single antenna output, which simplifies antenna infrastructure in multi‑channel setups and improves RF performance by reducing clutter and interference between antennas. It provides a central rack‑mounted solution to optimize wireless signal distribution for live sound, theatre, and large installation environments.

Key Features

• Combines up to eight PSM wireless transmitters into one antenna output for efficient RF management.

• Wideband operation covering 865–960 MHz.

• Reduces rack clutter and simplifies antenna infrastructure.

• LED indicators for signal presence and overload make monitoring easier.

• Improved fan design for better thermal efficiency and lower ambient noise.

• Expansion port allows daisy‑chaining up to two combiners.

• Compatible with Shure PSM 300, PSM 900, and PSM 1000 wireless monitoring systems.