The new Shure ANX4 Scalable Wireless Receiver is able to receive signals from up to 16 channels of Shure Axient Digital transmitters, or 24 channels of Shure ULX-D wireless audio. The scalable wireless receiver can be operated in either Axient Digital or ULX-D mode, supporting all available transmitter options in those platforms.
Delivering maximum flexibility in a single rack space, the ANX4 does not ship preconfigured with active wireless channels. Users can simply choose the number of channels they need, purchase channel licenses and activate them directly in the ANX4. What’s more, ANX4 channel licenses can be activated in one ANX4 and later removed and activated in a different ANX4 via the user's ShureCloud account.
The software-defined solution was unveiled at infoComm 2025, and introduces new levels of scalability to its best-in-class digital wireless traditional systems. The ANX4 hardware will be available in fall 2025, and channel licenses can be purchased through authorized dealers or directly on the Shure website.
At the same time, Shure announced that Channel Expansion capability and Axient Digital Standard Transmission Mode will be available for Axient Digital PSM systems as a firmware update through ShureCloud or the Shure Update Utility. This will enable users of those more recent systems to purchase licenses and expand the number of channels, adding up to 12 stereo audio channels for the ADTQ quad transmitter, and 6 for the ADTD dual transmitter, totaling 16 or 8 stereo channels, respectively.
The Axient Digital Standard Transmission Mode enables ADTQ and ADTD transmitters to send wireless audio to various Axient Digital microphone receivers, extending high-power, long-distance audio transmission capabilities.
New transmitters and receivers in the ULX-D Wireless System, shipping in the United States in fall 2025, will also provide an expanded frequency range and greater geographic usability. These new wide tuning ULX-D components are compatible with the scalable ANX4 Digital Wireless Scalable Receiver.
ULX-D Wide Tuning frequency range availability varies around the world based on regional regulatory requirements. In the United States, up to 138MHz; in Europe and Latin America, up to 166MHz; and in other countries, the range will vary based on individual regulatory requirements.
Once channel licenses are purchased for ANX4 or Axient Digital PSM, they can be activated by the owner and later reallocated to other hardware units of the same type through ShureCloud. For example, an audio professional can deploy their licensed ANX4 channels between any number of ANX4 receivers and likewise deploy their licensed Axient Digital PSM channels between any number of Axient Digital PSM transmitters. This flexibility allows users to move wireless channels without having to move their hardware, making it easier to meet the changing requirements of high channel count productions.
"Shure continues to innovate with powerful wireless technology that can adapt to fit the dynamic needs of our customers," says Nick Wood, Associate Vice President of Marketing & Product Management for Professional Audio at Shure. "These solutions are intended to increase the flexibility of our products while bringing together hardware and software capabilities that allow audio professionals to do more with the overall solution."
The new ANX4 hardware units are available in AC and DC powered versions, and support a wide tuning range of 174MHz to 2GHz and two pairs of antenna inputs that can each be tuned up to 72MHz wide. The single rack receiver maximizes efficiency by using less space and reducing heat, offering a cost-effective solution at high channel counts, without compromising on Axient Digital’s and ULX-D’s existing features. This is ideal for audio rental companies, fixed installations, and location sound mixers, as it reduces the space and weight typically required for high channel count solutions.
Enhanced connectivity options on ANX4 include four Ethernet and four coaxial antenna inputs for streamlined configuration, with no need for additional antenna distribution gear. Additionally, the ANX4 units feature a large, 6.6-inch front panel color display, Dante/AES67 outputs, and a 1/4" front-panel headphone connector for convenient monitoring. The ANX4 receiver also supports network control with Shure Wireless Workbench for comprehensive, remote RF monitoring and management.
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