The Shure PA421B-E is a professional 4-to-1 RF antenna combiner for Shure PSM in-ear monitoring transmitters (not compatible with PSM200). It consolidates up to four PSM transmitters into a single high-quality antenna feed, cutting aerial clutter, minimising intermodulation, and improving RF stability on demanding stages. Integrated DC power distribution lets you power multiple PSM transmitters directly from the unit, streamlining rack builds and reducing mains cabling. Robust RF filtering and straightforward BNC connectivity support clean, dependable operation in busy RF environments.
Built for touring and fixed installations, the PA421B-E offers the reliability, consistency, and quick setup required by rental houses, venues, and production teams. The “-E” variant ensures EU-compliant power, aiding standardisation across European deployments. Centralise your IEM transmission, position a single antenna optimally, and deliver cleaner, more consistent in-ear mixes with less hassle.
Ideal for live sound, theatre, broadcast, and corporate AV where multiple in-ear mixes must be transmitted with maximum reliability and minimal RF footprint.
Includes
- Power supply (PSU)
- Power supply
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