{"product_id":"stage22-shure-pa421b-antenna-combiner-for-psm","title":"Shure PA421B Antenna Combiner for PSM IEM Systems","description":"The Shure PA421B is a professional wideband antenna combiner designed for Shure PSM in‑ear monitoring systems. Operating across 470–865 MHz, it consolidates multiple IEM transmitter outputs into a single RF feed for use with one external antenna, helping to streamline rack builds and reduce RF interference on busy stages. Housed consistently in the same rack, this unit is presented in good condition. By centralising RF transmission, the PA421B supports cleaner spectrum management, improved coverage, and simpler antenna placement, while helping to minimise intermodulation and cable clutter. It’s an ideal choice for production houses, rental companies, and venues that need dependable, tour‑ready RF infrastructure for in‑ear monitoring. The PA421B integrates neatly into standard rack workflows and is suited to both portable and installed applications where robust RF performance and tidy system design are priorities. A reliable solution for combining PSM transmitters into a single, efficient antenna path. Perfect for live sound, broadcast setups, and fixed installations that require stable, consistent in‑ear monitoring performance.\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eShure PA421B Antenna Combiner for PSM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003e\u003cstrong\u003eSTAGE22.1.100.200\u003c\/strong\u003e\u003c\/small\u003e\u003c\/p\u003e","brand":"Shure","offers":[{"title":"Used Equipment","offer_id":63769298927993,"sku":null,"price":1380.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0288\/2260\/1776\/files\/Shure_20Antenne_20Combiner.jpg?v=1781541544","url":"https:\/\/stage-experts.com\/products\/stage22-shure-pa421b-antenna-combiner-for-psm","provider":"Stage Experts Ltd","version":"1.0","type":"link"}