Overview
Intelligent single-channel digital wireless receiver for use in demanding corporate, education, and performance environments. Features a 64 MHz tuning range (region dependent), extensive antenna and spectrum options and AES-256 encryption.
Details
Predictive switching diversity 
High-Density mode optimises ULX-D systems to simultaneously operate significantly more channels in applications up to 30 meters
Intelligent scanning automatically finds and deploys clear frequencies to transmitters over IR sync 
Interference detection and alerts provided on both the receiver and Wireless Workbench®
Front panel gain adjustment buttons provide up to 60 dB additional gain
AES 256-bit encryption-enabled for applications where secure transmission is needed
Ethernet networking provides a streamlined setup across multiple receivers, Wireless Workbench® integration, and AMX/Crestron control 
Support for frequency coordination with the Axient® Spectrum Manager
Rugged metal chassis
Intuitive front panel LCD menu and controls with lockout feature
Upgraded LCD with adjustable contrast and brightness
Audio and RF LED meters with peak indicator
Remoteable ½ wave antennas
Furnished rack hardware
The Shure ULXD4 is a half-rack, networkable wireless receiver for use with ULX-D® Digital Wireless Systems.
With an expansive set of professional features, including 24-bit / 48 kHz digital audio quality, efficient and intelligent RF performance, and AES 256-bit encryption, ULX Digital offers uncompromising wireless tailored for professional sound reinforcement.
Note: When purchasing separate wireless components, please match their frequency bands to ensure proper system operation.