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Shure UA845UWB Antenna Distribution System - QLX-D, ULX, SLX, BLX4R — main product image
Shure

Shure UA845UWB Antenna Distribution System - QLX-D, ULX, SLX, BLX4R

Shure UA845UWB antenna distribution system feeds RF and power to up to five wireless receivers from one antenna pair.

$1,170.00*
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*Price sourced from Amazon.com. Last updated:Aug 28, 2026.Price and availability are subject to change — details.

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Overview

The Shure UA845UWB Antenna Distribution System is designed for professionals managing multiple wireless microphone or in-ear monitor receivers. Rather than running separate antenna pairs for each receiver, the UA845UWB lets you connect up to four receivers to a single pair of antennas, with cascade connectors that allow a fifth receiver or a second UA845UWB unit to be added for larger deployments. This dramatically reduces antenna clutter and simplifies rack wiring in touring, broadcast, and installed sound environments.

A key strength of the UA845UWB is its built-in RF signal amplification, which compensates for the insertion loss inherent in splitting an antenna signal across multiple outputs. This ensures each receiver gets a strong, clean RF feed without degraded performance. The unit also distributes DC power to connected receivers, cutting down on individual power supplies and further simplifying rack setups. With five selectable frequency bands spanning 174 MHz to 1805 MHz, the UA845UWB offers true ultra-wideband coverage, making it compatible with Shure's Axient Digital, QLX-D, ULX, ULX-D, SLX, and BLX4R systems across a wide range of regional frequency allocations.

Key Features

The Shure Model UA845UWB Antenna Distribution System allows four receivers to use the same set of antennas.

The cascade connectors allow connections to a fifth receiver or a second UA845UWB.

There are also power connectors for distributing power to each receiver.

RF signal amplification compensates for insertion loss from splitting the antenna input to multiple outputs.

A button on the front panel switches between one of five frequency bands from 174 to 1805MHz.

5 selectable frequency ranges (band selection on the front panel): 174 – 216 MHz / 470 – 960 MHz / 1240 – 1260 MHz / 1492 – 1525 MHz / 1785 – 1805 MHz.

Antenna A and B input overload LED indicators / five-way RF signal output.

Support Axient Digital, QLX-D, ULX, ULX-D, SLX, and BLX (BLX4R only) receivers.

Front-mounting antenna hardware, rack-mounting hardware and an internal power supply.

4 DC power feeds for receivers (15V, 2.5A max) / DC outputs for antenna bias (12V, 300mA max).

Specifications

Brand
Shure
Model
UA845UWB
Type
Antenna Distribution System
Receiver Support
Up to 4 (5 with cascade)
Frequency Bands
174–216 MHz, 470–960 MHz, 1240–1260 MHz, 1492–1525 MHz, 1785–1805 MHz
RF Amplification
Yes (compensates for insertion loss)
Power Distribution
DC power to each receiver
Cascade Connectors
Yes (fifth receiver or second UA845UWB)
Compatible Systems
Axient Digital, QLX-D, ULX, ULX-D, SLX, BLX4R

Frequently Asked Questions

It directly supports up to four receivers from a single pair of antennas, and cascade connectors allow you to add a fifth receiver or daisy-chain a second UA845UWB unit for even more.
It works with Axient Digital, QLX-D, ULX, ULX-D, SLX, and BLX (BLX4R model only) receivers.
Yes, it includes power distribution connectors that can supply DC power to each connected receiver, reducing the number of individual power supplies needed in your rack.
It covers five selectable frequency ranges: 174–216 MHz, 470–960 MHz, 1240–1260 MHz, 1492–1525 MHz, and 1785–1805 MHz, giving it ultra-wideband coverage.
Yes, it includes built-in RF signal amplification that compensates for insertion loss caused by splitting the antenna signal across multiple receivers.

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