The Shure PA421B is a professional wideband antenna combiner designed for Shure PSM in‑ear monitoring systems. Operating across 470–865 MHz, it merges multiple IEM transmitter outputs into a single, clean RF feed so you can deploy one external antenna for a tidier, more controlled RF environment. By centralising transmission, it helps reduce intermodulation risk, lower cable counts, and deliver more consistent coverage—especially valuable on crowded stages and in complex RF landscapes. The PA421B fits seamlessly into standard 19‑inch rack setups, making it at home in touring racks, fixed installations, broadcast suites and rental inventories. Its robust build and dependable RF performance support reliable monitoring for performers and crew, show after show. For teams looking to streamline their IEM racks and stabilise their RF infrastructure, the PA421B offers a solid, wideband solution that enhances workflow and confidence. Ideal for live sound, theatre, broadcast and corporate events where clean spectrum management and consistent in‑ear mixes are essential.
Includes
- Shure PA421B Antenna Combiner for PSM IEM Systems, 470–86...
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