The Shure PA421B-E is a professional 4-to-1 RF antenna combiner with integrated DC power distribution for Shure PSM in-ear monitoring transmitters (not compatible with PSM200). By feeding up to four transmitters into a single, high-quality antenna output, it reduces aerial clutter, minimises intermodulation risk and helps deliver cleaner, more consistent RF coverage across stage and venue spaces. Centralised power simplifies deployment: multiple PSM transmitters can be powered from the unit, cutting down on IECs, mains strips and cabling in the rack.
Engineered for reliability in touring and fixed installations, the PA421B-E offers robust build quality, dependable RF performance and straightforward BNC connectivity for quick, repeatable setups. The European “-E” variant ensures region-appropriate power compliance, making it a practical choice for EU productions, rental fleets and integrators.
Ideal for live sound, broadcast and corporate events, the PA421B-E streamlines IEM infrastructure, helping engineers tidy racks, optimise antenna placement and improve monitoring stability. A smart, space-saving solution whenever multiple PSM transmitters need to operate cleanly from a single antenna.
Includes
- Power supply
STAGE1.1.100.999