Shure UA844+SWB Antenna Distro

The UA844+SWB is Shure's wideband active antenna splitter, and its job is straightforward: take one pair of antennas and feed them to up to four receivers simultaneously. In an IEM or wireless mic rig, running a separate antenna to every receiver is a cable nightmare and a placement compromise. This unit solves that by letting you position a single A/B antenna pair optimally — on a boom at stage lip, on a stand at FOH — and then distribute that clean signal back to each receiver in the rack. At one rackspace and 1.6 kg, it fits without drama.

Ten watts of draw is negligible on any conditioned power strip. The more practically significant spec is the four-out-per-side topology: two BNC inputs, eight BNC outputs, all on the rear panel. The active circuitry compensates for the split loss so receivers see a healthy signal level rather than a divided one, and the unit passes DC bias to power in-line antenna amplifiers like the UA834 — meaning you don't need a separate power run to a remote amp when you're pushing antennas a long cable run away. At 230 mm deep it's a standard shallow-rack depth, so it won't fight you in a tight tour pack.

If your rig runs four or fewer Shure wireless channels — PSM300, PSM900, ULX-D, or similar — this is the natural, well-proven choice. It's designed around Shure's own ecosystem, so compatibility is a non-issue. Where it stops making sense is when you cross the four-receiver threshold: the catalog record itself points to the UA845+SWB for larger deployments, and trying to daisy-chain two UA844s introduces complexity that the larger unit handles cleanly. It also won't do you much good if your receivers are non-Shure and require a different impedance or connector standard — verify compatibility before committing.